grob tv_ppt.ppt
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for eceTRANSCRIPT
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GROB TV Compiled and Edited BY:
ALDREEN M. QUIRIT, CCNA
( BSECE-MAPUA)
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• Which of the following camera tubes uses lead oxide (PbO) for the photoconductive target plate?
A. VidiconB. PlumbiconC. SaticonD. Image Orthicon
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• Which of the following camera tubes uses lead oxide (PbO) for the photoconductive target plate?
A. VidiconB. PlumbiconC. SaticonD. Image Orthicon
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• Camera signal output without sync is called
A. blank burstB. generator lock videoC. composite video D. noncomposite video
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• Camera signal output without sync is called
A. blank burstB. generator lock videoC. composite video D. noncomposite video
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• A low-contrast picture in which white seems flat and lacking in details suggests
A. low beam currentB. high gain in preamplifierC. excessive gamma D. insufficient scanning width
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• A low-contrast picture in which white seems flat and lacking in details suggests
A. low beam currentB. high gain in preamplifierC. excessive gamma D. insufficient scanning width
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• Which of the following camera tubes has
minimum lag?
A. VidiconB. PlumbiconC. SaticonD. Image Orthicon
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• Which of the following camera tubes has
minimum lag?
A. VidiconB. PlumbiconC. SaticonD. Image Orthicon
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• The part of the visible spectrum where camera pickup tubes have the greatest output is
A. redB. blueC. yellow-greenD. infrared
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• The part of the visible spectrum where camera pickup tubes have the greatest output is
A. redB. blueC. yellow-greenD. infrared
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• Precise scanning size and linearity are most important in
A. a black-and-white cameraB. a plumbiconC. a single-tube color pickupD. a saticon
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• Precise scanning size and linearity are most important in
A. a black-and-white cameraB. a plumbiconC. a single-tube color pickupD. a saticon
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• Beam alignment magnets for the camera tube
are adjusted while rocking which control?
A. Optical focusB. Electrical focusC. Beam currentD. Shading
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• Beam alignment magnets for the camera tube are adjusted while rocking which control?
A. Optical focusB. Electrical focusC. Beam currentD. Shading
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• Special effects and production switching are done by the
A. CCUB. ENG cameraC. SEGD. Sync generator
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• Special effects and production switching are done by the
A. CCUB. ENG cameraC. SEGD. Sync generator
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• The gamma of the picture is
A. 0.4545B. 1.0C. 1.4D. 2.2
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• The gamma of the picture is
A. 0.4545B. 1.0C. 1.4D. 2.2
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• If the camera cannot be placed far away
enough to include everything in the scene, change the lens to one with a
A. lower f ratingB. higher f ratingC. longer focal length D. shorter focal length
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• If the camera cannot be placed far away
enough to include everything in the scene, change the lens to one with a
A. lower f ratingB. higher f ratingC. longer focal length D. shorter focal length
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• A typically value of vidicon dark current is
A. 0.2 uAB. about 200 uAC. 8 mAD. 800 mA
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• A typically value of vidicon dark current is
A. 0.2 uAB. about 200 uAC. 8 mAD. 800 mA
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• A lens has an 8-cm focal and 4-cm diameter.
Its f rating is
A.2B. 4C. 8D. 32
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• A lens has an 8-cm focal and 4-cm diameter.
Its f rating is
A.2B. 4C. 8D. 32
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• Which of the following is FALSE?
A. The lens inverts the optical image on the faceplate of the camera tube
B. The composite video signal includes the camera signal and sync but not blanking
C. The standard composite video signal from a camera is 1 Vpp with negative sync
D. The plumbicon uses a lead oxide layer for the target plate
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• Which of the following is FALSE?
A. The lens inverts the optical image on the faceplate of the camera tube
B. The composite video signal includes the camera signal and sync but not blanking
C. The standard composite video signal from a camera is 1 Vpp with negative sync
D. The plumbicon uses a lead oxide layer for the target plate
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• Which of the following is TRUE?
A. The diameter of the vidicon image plate is about 5 in. (127 mm)
B. The plumbicon camera tube uses a silicon target plate
C. The composite video signal includes the camera signal and sync but not blanking
D. The lens inverts the optical image on the faceplate of the camera tube
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• Which of the following is TRUE?
A. The diameter of the vidicon image plate is about 5 in. (127 mm)
B. The plumbicon camera tube uses a silicon target plate
C. The composite video signal includes the camera signal and sync but not blanking
D. The lens inverts the optical image on the faceplate of the camera tube
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• Which of the following produces the signal variations for G4 of the vidicon?
A. Target PlateB. Wire MeshC. MuzzleD. Beam Control
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• Which of the following produces the signal variations for G4 of the vidicon?
A. Target PlateB. Wire MeshC. MuzzleD. Beam Control
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• What is the gamma required for the camera tube?
A. 2.2B. 0.4545C. 4.545D. 0.22
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• What is the gamma required for the camera tube?
A. 2.2B. 0.4545C. 4.545D. 0.22
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• _______ is more important for the gamma correction for the camera tube.
A. ColorB. MonochromeC. Both Color and MonochromeD. either of Color or Monochrome
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• _______ is more important for the gamma correction for the camera tube.
A. ColorB. MonochromeC. Both Color and MonochromeD. either of Color or Monochrome
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• In gamma correction, the ____ is stretched by the picture tube.
A. blackB. grayC. whiteD. red
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• In gamma correction, the ____ is stretched by the picture tube.
A. blackB. grayC. whiteD. red
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• To how many lax units is the illumination of 3 fc approximately equal to?
A. 650B. 225C. 65D. 30
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• To how many lax units is the illumination of 3 fc approximately equal to?
A. 650B. 225C. 65D. 30
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• What is the diagonal screen size for the 19CP4 picture tube?
A. 12 in.B. 16 in.C. 19 in.D. 24 in.
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• What is the diagonal screen size for the 19CP4 picture tube?
A. 12 in.B. 16 in.C. 19 in.D. 24 in.
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• To what deflection angle does a maximum deflection angle of 45 degrees either side of center correspond?
A. 30 degreesB. 90 degreesC. 120 degreesD. 360 degrees
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• To what deflection angle does a maximum deflection angle of 45 degrees either side of center correspond?
A. 30 degreesB. 90 degreesC. 120 degreesD. 360 degrees
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• What is the usual heater voltage for picture tubes?
A. 1.6 VB. 5.6 VC. 6.3 VD. 9.3 V
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• What is the usual heater voltage for picture tubes?
A. 1.6 VB. 5.6 VC. 6.3 VD. 9.3 V
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• What is the typical anode voltage for a 25-in color picture tube?
A. 10 kVB. 30 kVC. 1 kVD. 30 V
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• What is the typical anode voltage for a 25-in color picture tube?
A. 10 kVB. 30 kVC. 1 kVD. 30 V
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• Typically, the anode capacitance for a 25-in. tube is ______ pF.
A. 2B. 20C. 205D. 2000
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• Typically, the anode capacitance for a 25-in. tube is ______ pF.
A. 2B. 20C. 205D. 2000
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• When the TV set was turned on, full power was applied to the heater and the picture appeared within a fraction of a second.
A. UltorB. ImplosionC. Instant-on operationD. Screen persistence
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• When the TV set was turned on, full power was applied to the heater and the picture appeared within a fraction of a second.
A. UltorB. ImplosionC. Instant-on operationD. Screen persistence
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• What are the phosphor numbers, respectively, for monochrome and color picture tubes?
A. P1 and P4B. P1 and P22C. P4 and P22 D. P4 and P1
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• What are the phosphor numbers, respectively, for monochrome and color picture tubes?
A. P1 and P4B. P1 and P22C. P4 and P22 D. P4 and P1
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• What is the color of P1 screen phosphor?
A. RedB. BlueC. WhiteD. Green
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• What is the color of P1 screen phosphor?
A. RedB. BlueC. WhiteD. Green
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• Which of the following is the most negative (or least positive) electrode in the electron gun?
A. CathodeB. Control Grid G1C. Screen GridD. Focus Grid
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• Which of the following is the most negative (or least positive) electrode in the electron gun?
A. CathodeB. Control Grid G1C. Screen GridD. Focus Grid
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• Which is the most positive element in the electron gun?
A. UltorB. AnodeC. Cathode D. Ultor or Anode
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• Which is the most positive element in the electron gun?
A. UltorB. AnodeC. Cathode D. Ultor or Anode
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• Most of the electrons in the beam flow out of which terminal?
A. UltorB. AnodeC. Cathode D. Ultor or Anode
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• Most of the electrons in the beam flow out of which terminal?
A. UltorB. AnodeC. Cathode D. Ultor or Anode
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• The crossover point for focusing is formed by the ____ electron lens.
A. firstB. secondC. thirdD. fourth
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• The crossover point for focusing is formed by the ____ electron lens.
A. firstB. secondC. thirdD. fourth
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• In which method is a G3 voltage of 200 V used for?
A. low-voltage focusB. high-voltage focusC. either low- or high voltage focusD. none of these
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• In which method is a G3 voltage of 200 V used for?
A. low-voltage focusB. high-voltage focusC. either low- or high voltage focusD. none of these
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• Small magnets embedded in the yoke housing are correct for ____.
A. yoke positionB. magnetic deflectionC. pincushion distortion D. centering adjustments
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• Small magnets embedded in the yoke housing are correct for ____.
A. yoke positionB. magnetic deflectionC. pincushion distortion D. centering adjustments
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• The coils above and below the electron beam of the picture tube are for _______.
A.V scanningB. H scanningC. Either V or H scanning D. None of these
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• The coils above and below the electron beam of the picture tube are for _______.
A.V scanningB. H scanningC. Either V or H scanning D. None of these
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• Neck shadow result when the deflection yoke is ___________.
A. too near backB. too near forward C. too far back D. too far forward
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• Neck shadow result when the deflection yoke is ___________.
A. too near backB. too near forward C. too far back D. too far forward
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• In color picture tube, degaussing should be done _____ the color purity adjustments.
A. afterB. beforeC. either wayD. none at all
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• In color picture tube, degaussing should be done _____ the color purity adjustments.
A. afterB. beforeC. either wayD. none at all
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• In color picture tube, degaussing is done with ______.
A. direct currentB. alternating currentC. 60-Hz alternating current D. 90-Hz alternating current
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• In color picture tube, degaussing is done with ______.
A. direct currentB. alternating currentC. 60-Hz alternating current D. 90-Hz alternating current
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• When the receiver is first turned on, what current does the ADG circuit have?
A. HighB. LowC. Both high and low D. Neither high now low
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• When the receiver is first turned on, what current does the ADG circuit have?
A. HighB. LowC. Both high and low D. Neither high now low
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• In color picture tube, what does a solid red raster checked for?
A. Good color purityB. ConvergenceC. Degaussing D. Resetting the yoke
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• In color picture tube, what does a solid red raster checked for?
A. Good color purityB. ConvergenceC. Degaussing D. Resetting the yoke
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• Where do the small, white dots in the picture used for?
A. Good color purityB. ConvergenceC. DegaussingD. Resetting the yoke
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• Where do the small, white dots in the picture used for?
A. Good color purityB. ConvergenceC. DegaussingD. Resetting the yoke
![Page 82: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/82.jpg)
• What does the color fringing on the edges of the picture shows?
A. MisconvergenceB. Insufficient signal driveC. Turned off gunsD. Red cloud
![Page 83: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/83.jpg)
• What does the color fringing on the edges of the picture shows?
A. MisconvergenceB. Insufficient signal driveC. Turned off gunsD. Red cloud
![Page 84: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/84.jpg)
• Static convergence is done for the _____ of the screen.
A. centerB. edgesC. leftD. right
![Page 85: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/85.jpg)
• Static convergence is done for the _____ of the screen.
A. centerB. edgesC. leftD. right
![Page 86: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/86.jpg)
• Where are the permanent magnets used?
A. static convergenceB. dynamic convergenceC. automatic degaussing D. resetting the yoke
![Page 87: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/87.jpg)
• Where are the permanent magnets used?
A. static convergenceB. dynamic convergenceC. automatic degaussing D. resetting the yoke
![Page 88: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/88.jpg)
• In picture tubes, the basic waveform for dynamic convergence is the ____.
A. parabolaB. half a sine wave C. full sine wave D. parabola or half of sine wave
![Page 89: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/89.jpg)
• In picture tubes, the basic waveform for dynamic convergence is the ____.
A. parabolaB. half a sine wave C. full sine wave D. parabola or half of sine wave
![Page 90: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/90.jpg)
• Pincushion magnets are used for ____ picture tubes.
A. monochromeB. colorC. both color and monochromeD. either color or monochrome
![Page 91: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/91.jpg)
• Pincushion magnets are used for ____ picture tubes.
A. monochromeB. colorC. both color and monochromeD. either color or monochrome
![Page 92: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/92.jpg)
• The abbreviation TB is for ___ pincushion correction.
A. diagonalB. verticalC. horizontalD. either way
![Page 93: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/93.jpg)
• The abbreviation TB is for ___ pincushion correction.
A. diagonalB. verticalC. horizontalD. either way
![Page 94: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/94.jpg)
• The typical dc grid bias for a 19-in picture tube
A. -4 VB. -40 VC. -6 VD. -60 V
![Page 95: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/95.jpg)
• The typical dc grid bias for a 19-in picture tube
A. -4 VB. -40 VC. -6 VD. -60 V
![Page 96: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/96.jpg)
• Typical ac signal drive for a 19-in picture tube
A. 8 VppB. 40 VppC. 120 VppD. 140 Vpp
![Page 97: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/97.jpg)
• Typical ac signal drive for a 19-in picture tube
A. 8 VppB. 40 VppC. 120 VppD. 140 Vpp
![Page 98: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/98.jpg)
• For the picture tube, the brightness control varies the ___ bias signal drive
A. dcB. acC. either ac or dcD. both ac and dc
![Page 99: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/99.jpg)
• For the picture tube, the brightness control varies the ___ bias signal drive
A. dcB. acC. either ac or dcD. both ac and dc
![Page 100: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/100.jpg)
• The R, G, and B screen-grid adjustments are set for ___ in the picture
A. visual cutoffB. white highlightsC. brightness control D. gray-scale tracking
![Page 101: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/101.jpg)
• The R, G, and B screen-grid adjustments are set for ___ in the picture
A. visual cutoffB. white highlightsC. brightness control D. gray-scale tracking
![Page 102: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/102.jpg)
• The R, G, and B video drive controls are set for ___ in the picture
A. dark grayB. whiteC. blackD. green
![Page 103: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/103.jpg)
• The R, G, and B video drive controls are set for ___ in the picture
A. dark grayB. whiteC. blackD. green
![Page 104: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/104.jpg)
• Background controls of many picture tubes are for the
A. AC biasB. DC biasC. AC video signalD. DC video signal
![Page 105: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/105.jpg)
• Background controls of many picture tubes are for the
A. AC biasB. DC biasC. AC video signalD. DC video signal
![Page 106: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/106.jpg)
• The G2 master screen control of picture tubes varies the ____.
A. ac voltageB. dc voltageC. ac video signalD. dc video signal
![Page 107: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/107.jpg)
• The G2 master screen control of picture tubes varies the ____.
A. ac voltageB. dc voltageC. ac video signalD. dc video signal
![Page 108: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/108.jpg)
• In the sawtooth waveform for linear scanning
A. the linear rises if for flybackB. the complete cycle includes trace and retraceC. the sharp reversal in amplitude produces traceD. the beam moves faster during trace than
retrace
![Page 109: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/109.jpg)
• In the sawtooth waveform for linear scanning
A. the linear rises if for flybackB. the complete cycle includes trace and retraceC. the sharp reversal in amplitude produces traceD. the beam moves faster during trace than
retrace
![Page 110: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/110.jpg)
• Given a 635-us vertical retrace time, the number of complete horizontal lines scanned during vertical flyback is
A. 10B. 20C. 30D. 63
![Page 111: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/111.jpg)
• Given a 635-us vertical retrace time, the number of complete horizontal lines scanned during vertical flyback is
A. 10B. 20C. 30D. 63
![Page 112: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/112.jpg)
• One-half line spacing between the start positions for scanning even and odd fields produces
A. linear scanningB. line pairingC. fishtailingD. exact interlacing
![Page 113: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/113.jpg)
• One-half line spacing between the start positions for scanning even and odd fields produces
A. linear scanningB. line pairingC. fishtailingD. exact interlacing
![Page 114: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/114.jpg)
• The number of lines scanned per frame in the raster on the picture tube screen is
A. 525B. 262 ½ C. 20D. 10
![Page 115: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/115.jpg)
• The number of lines scanned per frame in the raster on the picture tube screen is
A. 525B. 262 ½ C. 20D. 10
![Page 116: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/116.jpg)
• • In the frame for which interlaced scanning is
used, alternate lines are skipped during vertical scanning because
A. the trace is slower than the retraceB. the vertical scanning frequency is doubled from
30 to 60 HzC. the horizontal scanning is slower than vertical
scanningD. the frame has 4:3 aspect ratio
![Page 117: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/117.jpg)
• • In the frame for which interlaced scanning is
used, alternate lines are skipped during vertical scanning because
A. the trace is slower than the retraceB. the vertical scanning frequency is doubled from
30 to 60 HzC. the horizontal scanning is slower than vertical
scanningD. the frame has 4:3 aspect ratio
![Page 118: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/118.jpg)
• If the horizontal flyback is 10 percent, this time equals
A. 10 usB. 56 usC. 6.4 usD. 83 us
![Page 119: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/119.jpg)
• If the horizontal flyback is 10 percent, this time equals
A. 10 usB. 56 usC. 6.4 usD. 83 us
![Page 120: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/120.jpg)
• Which of the following is NOT true?
• A. Line pairing indicates poor interlacing• B. People look too tall and too thin on a square
raster on the picture tube screen• C. A person can appear to have one shoulder
wider than the other because of nonlinear horizontal scanning
• D. The keystone effect produces square raster
![Page 121: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/121.jpg)
• Which of the following is NOT true?
• A. Line pairing indicates poor interlacing• B. People look too tall and too thin on a square
raster on the picture tube screen• C. A person can appear to have one shoulder
wider than the other because of nonlinear horizontal scanning
• D. The keystone effect produces square raster
![Page 122: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/122.jpg)
• The width of a vertical sync pulse with its serrations includes the time of
A. six half-lines, or three linesB. five linesC. three half-lines D. five half-lines
![Page 123: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/123.jpg)
• The width of a vertical sync pulse with its serrations includes the time of
A. six half-lines, or three linesB. five linesC. three half-lines D. five half-lines
![Page 124: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/124.jpg)
• Sawtooth generator circuits produce the scanning raster, but the sync pulses are needed for
A. linearityB. timingC. keystoningD. line pairing
![Page 125: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/125.jpg)
• Sawtooth generator circuits produce the scanning raster, but the sync pulses are needed for
A. linearityB. timingC. keystoningD. line pairing
![Page 126: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/126.jpg)
• Which of the following frequencies is wrong?
A. 15,750 Hz for horizontal sync and scanningB. 60 Hz for vertical sync and scanningC. 31,500 Hz for equalizing pulses and
serrations in the vertical sync pulsesD. 31,500 Hz for the vertical scanning frequency
![Page 127: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/127.jpg)
• Which of the following frequencies is wrong?
A. 15,750 Hz for horizontal sync and scanningB. 60 Hz for vertical sync and scanningC. 31,500 Hz for equalizing pulses and
serrations in the vertical sync pulsesD. 31,500 Hz for the vertical scanning frequency
![Page 128: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/128.jpg)
• Which of the following is faster in horizontal scanning?
A. traceB. retraceC. flybackD. retrace or flyback
![Page 129: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/129.jpg)
• Which of the following is faster in horizontal scanning?
A. traceB. retraceC. flybackD. retrace or flyback
![Page 130: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/130.jpg)
• Which of the following takes more time?
A. H retraceB. H traceC. V retraceD. V trace
![Page 131: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/131.jpg)
• Which of the following takes more time?
A. H retraceB. H traceC. V retraceD. V trace
![Page 132: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/132.jpg)
• What does an interlaced scanning require for the number of the horizontal lines?
A. OddB. EvenC. Both odd and even simultaneously D. Either odd or even
![Page 133: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/133.jpg)
• What does an interlaced scanning require for the number of the horizontal lines?
A. OddB. EvenC. Both odd and even simultaneously D. Either odd or even
![Page 134: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/134.jpg)
• How many horizontal lines are in the odd or an even field?
A. 10 ½ B. 262 ½ C. 525 linesD. 600 lines
![Page 135: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/135.jpg)
• How many horizontal lines are in the odd or an even field?
A. 10 ½ B. 262 ½ C. 525 linesD. 600 lines
![Page 136: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/136.jpg)
• How many H lines are there in a complete frame?
A. 19 linesB. 21 linesC. 525 linesD. 600 lines
![Page 137: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/137.jpg)
• How many H lines are there in a complete frame?
A. 19 linesB. 21 linesC. 525 linesD. 600 lines
![Page 138: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/138.jpg)
• How many H lines are there in each field?
A. 8 ½ linesB. 10 ½ linesC. 262 ½ linesD. 325 lines
![Page 139: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/139.jpg)
• How many H lines are there in each field?
A. 8 ½ linesB. 10 ½ linesC. 262 ½ linesD. 325 lines
![Page 140: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/140.jpg)
• How many H lines are there in each V retrace?
A. OneB. TwoC. ThreeD. Four
![Page 141: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/141.jpg)
• How many H lines are there in each V retrace?
A. OneB. TwoC. ThreeD. Four
![Page 142: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/142.jpg)
• What are the frequencies of V scanning, V sync, and V blanking?
A.30 HzB. 60 HzC. 90 HzD. 360 Hz
![Page 143: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/143.jpg)
• What are the frequencies of V scanning, V sync, and V blanking?
A.30 HzB. 60 HzC. 90 HzD. 360 Hz
![Page 144: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/144.jpg)
• What are the frequencies of H scanning, H sync, and H blanking?
A. 15,750 HzB. 16,750 HzC. 31,500 HzD. 30,050 Hz
![Page 145: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/145.jpg)
• What are the frequencies of H scanning, H sync, and H blanking?
A. 15,750 HzB. 16,750 HzC. 31,500 HzD. 30,050 Hz
![Page 146: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/146.jpg)
• In video signal analysis, what are the three parts of the composite video signal, for two horizontal lines in the picture?
A. Camera signalB. H syncC. H blanking D. All of these
![Page 147: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/147.jpg)
• In video signal analysis, what are the three parts of the composite video signal, for two horizontal lines in the picture?
A. Camera signalB. H syncC. H blanking D. All of these
![Page 148: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/148.jpg)
• In the IRE scale for composite video signal, list the number of IRE units used for sync, black setup, and the camera signal?
A. 40, 7.5, 92.5 respectivelyB. 92.5, 40, 7.5 respectively C. 7.5, 40, 92.5 respectivelyD. 92.5, 7.5, 40 respectively
![Page 149: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/149.jpg)
• In the IRE scale for composite video signal, list the number of IRE units used for sync, black setup, and the camera signal?
A. 40, 7.5, 92.5 respectivelyB. 92.5, 40, 7.5 respectively C. 7.5, 40, 92.5 respectivelyD. 92.5, 7.5, 40 respectively
![Page 150: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/150.jpg)
• What are the approximate time periods for the width of H blanking pulse in microseconds?
A. 5B. 8.93C. 10.2D. 53.5
![Page 151: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/151.jpg)
• What are the approximate time periods for the width of H blanking pulse in microseconds?
A. 5B. 8.93C. 10.2D. 53.5
![Page 152: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/152.jpg)
• What are the approximate time periods for the visible H trace?
A. 5B. 8.93C. 10.2D. 53.5
![Page 153: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/153.jpg)
• What are the approximate time periods for the visible H trace?
A. 5B. 8.93C. 10.2D. 53.5
![Page 154: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/154.jpg)
• What are the approximate time periods for the width of H sync pulse?
A. 5B. 8.93C. 10.2D. 53.5
![Page 155: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/155.jpg)
• What are the approximate time periods for the width of H sync pulse?
A. 5B. 8.93C. 10.2D. 53.5
![Page 156: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/156.jpg)
• Which pulses in V blanking correspond to the 3H lines wide?
A. V syncB. V blankingC. EqualizingD. All of these
![Page 157: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/157.jpg)
• Which pulses in V blanking correspond to the 3H lines wide?
A. V syncB. V blankingC. EqualizingD. All of these
![Page 158: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/158.jpg)
• Which pulses in V blanking correspond to the 21H lines wide?
A. V syncB. V blankingC. EqualizingD. All of these
![Page 159: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/159.jpg)
• Which pulses in V blanking correspond to the 21H lines wide?
A. V syncB. V blankingC. EqualizingD. All of these
![Page 160: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/160.jpg)
• Which pulses in V blanking correspond to the 31,500 Hz?
A. V syncB. V blankingC. EqualizingD. All of these
![Page 161: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/161.jpg)
• Which pulses in V blanking correspond to the 31,500 Hz?
A. V syncB. V blankingC. EqualizingD. All of these
![Page 162: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/162.jpg)
• Give the maximum number of picture details for each horizontal line.
A. 338B. 426C. 125,000D. 144,000
![Page 163: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/163.jpg)
• Give the maximum number of picture details for each horizontal line.
A. 338B. 426C. 125,000D. 144,000
![Page 164: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/164.jpg)
• Give the maximum number of picture details for total picture area.
A. 338B. 426C. 125,000D. 144,000
![Page 165: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/165.jpg)
• Give the maximum number of picture details for total picture area.
A. 338B. 426C. 125,000D. 144,000
![Page 166: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/166.jpg)
• The average dc level is close to the blanking level for a ____ scene?
A. lightB. dark C. either dark or light D. neither dark nor light
![Page 167: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/167.jpg)
• The average dc level is close to the blanking level for a ____ scene?
A. lightB. dark C. either dark or light D. neither dark nor light
![Page 168: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/168.jpg)
• In what condition does the picture tube reproduce black?
A. Maximum beam currentB. Minimum beam currentC. Zero beam current D. None of these
![Page 169: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/169.jpg)
• In what condition does the picture tube reproduce black?
A. Maximum beam currentB. Minimum beam currentC. Zero beam current D. None of these
![Page 170: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/170.jpg)
• The gamma affects the ____ of the picture tube.
A. contrastB. brightnessC. dullness D. either the brightness or contrast
![Page 171: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/171.jpg)
• The gamma affects the ____ of the picture tube.
A. contrastB. brightnessC. dullness D. either the brightness or contrast
![Page 172: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/172.jpg)
• Picture tube has gamma which is _____.
A. greater than 1B. less than 1C. infinityD. zero
![Page 173: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/173.jpg)
• Picture tube has gamma which is _____.
A. greater than 1B. less than 1C. infinityD. zero
![Page 174: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/174.jpg)
• Brightness variations of the picture information are in which signal?
A. IB. QC. YD. R – Y
![Page 175: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/175.jpg)
• Brightness variations of the picture information are in which signal?
A. IB. QC. YD. R – Y
![Page 176: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/176.jpg)
• The hue 180 degrees out of phase with red is
A. cyanB. yellowC. greenD. blue
![Page 177: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/177.jpg)
• The hue 180 degrees out of phase with red is
A. cyanB. yellowC. greenD. blue
![Page 178: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/178.jpg)
• Greater p-p amplitude of the 3.58 – MHz chrominance signal indicates more
A. whiteB. yellowC. hueD. saturation
![Page 179: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/179.jpg)
• Greater p-p amplitude of the 3.58 – MHz chrominance signal indicates more
A. whiteB. yellowC. hueD. saturation
![Page 180: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/180.jpg)
• The interfering beat frequency of 920 kHz is between the 3.58 – MHz color subcarrier and the
A. 4.5 – MHz intercarrier soundB. picture carrierC. lower adjacent sound D. upper adjacent picture
![Page 181: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/181.jpg)
• The interfering beat frequency of 920 kHz is between the 3.58 – MHz color subcarrier and the
A. 4.5 – MHz intercarrier soundB. picture carrierC. lower adjacent sound D. upper adjacent picture
![Page 182: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/182.jpg)
• The hue of color sync phase is
A. redB. cyanC. blueD. yellow-green
![Page 183: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/183.jpg)
• The hue of color sync phase is
A. redB. cyanC. blueD. yellow-green
![Page 184: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/184.jpg)
• Which signal has color information for 1.3 – MHz bandwidth?
A. IB. YC. R – YD. B – Y
![Page 185: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/185.jpg)
• Which signal has color information for 1.3 – MHz bandwidth?
A. IB. YC. R – YD. B – Y
![Page 186: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/186.jpg)
• Which of the following is false?
A.The I video hues are orange or cyanB. The transmitter matrix output includes Y, I,
and Q video.C. A three-gun picture tube can serve as a
matrixD. A fully saturated color is mostly white
![Page 187: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/187.jpg)
• Which of the following is false?
A.The I video hues are orange or cyanB. The transmitter matrix output includes Y, I,
and Q video.C. A three-gun picture tube can serve as a
matrixD. A fully saturated color is mostly white
![Page 188: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/188.jpg)
• The color with the most luminance is
A. redB. yellowC. greenD. blue
![Page 189: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/189.jpg)
• The color with the most luminance is
A. redB. yellowC. greenD. blue
![Page 190: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/190.jpg)
• What is the hue of a color 90 degrees leading sync burst phase?
A. yellowB. cyanC. blueD. orange
![Page 191: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/191.jpg)
• What is the hue of a color 90 degrees leading sync burst phase?
A. yellowB. cyanC. blueD. orange
![Page 192: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/192.jpg)
• The average voltage value of the 3.58 – MHz modulated chrominance signal is
A. zero for most colorsB. close to black for yellowC. the brightness of the color D. the saturation of the color
![Page 193: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/193.jpg)
• The average voltage value of the 3.58 – MHz modulated chrominance signal is
A. zero for most colorsB. close to black for yellowC. the brightness of the color D. the saturation of the color
![Page 194: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/194.jpg)
• The second IF value for color in receivers, for any station, is
A. 0.5 MHzB. 1.3 MHzC. 3.58 MHzD. 4.5 MHz
![Page 195: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/195.jpg)
• The second IF value for color in receivers, for any station, is
A. 0.5 MHzB. 1.3 MHzC. 3.58 MHzD. 4.5 MHz
![Page 196: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/196.jpg)
• If the 3.58 – MHz C amplifier in the receiver does not operate, the result will be
A. no colorB. no redC. too much blueD. too much yellow
![Page 197: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/197.jpg)
• If the 3.58 – MHz C amplifier in the receiver does not operate, the result will be
A. no colorB. no redC. too much blueD. too much yellow
![Page 198: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/198.jpg)
• How many octaves is the frequency range 1 to 8 MHz?
A. 1B. 2C. 3D. 8
![Page 199: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/199.jpg)
• How many octaves is the frequency range 1 to 8 MHz?
A. 1B. 2C. 3D. 8
![Page 200: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/200.jpg)
• Which system can be used for both recording and playback?
A. CEDB. VHDC. Laser diskD. VHS
![Page 201: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/201.jpg)
• Which system can be used for both recording and playback?
A. CEDB. VHDC. Laser diskD. VHS
![Page 202: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/202.jpg)
• How many TV fields are recorded on one slant track of tape?
A.1B. 2C. 4D. 60
![Page 203: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/203.jpg)
• How many TV fields are recorded on one slant track of tape?
A.1B. 2C. 4D. 60
![Page 204: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/204.jpg)
• The video heads rotate at high frequency to increase the
A.tape speedB. writing speedC. reel rotation D. tape tension
![Page 205: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/205.jpg)
• The video heads rotate at high frequency to increase the
A.tape speedB. writing speedC. reel rotation D. tape tension
![Page 206: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/206.jpg)
• A typical frequency for the FM luminance signal in VCR recording is
A. 0.1 MHzB. 3.5 MHzC. 10 MHzD. 680 kHz
![Page 207: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/207.jpg)
• A typical frequency for the FM luminance signal in VCR recording is
A. 0.1 MHzB. 3.5 MHzC. 10 MHzD. 680 kHz
![Page 208: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/208.jpg)
• Which if the following applies to the color-under technique?
A. Chroma amplitudes are decreasedB. Chroma frequencies are reducedC. Luminance frequencies are decreasedD. Chroma and luminance frequencies are reduced
![Page 209: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/209.jpg)
• Which if the following applies to the color-under technique?
A. Chroma amplitudes are decreasedB. Chroma frequencies are reducedC. Luminance frequencies are decreasedD. Chroma and luminance frequencies are reduced
![Page 210: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/210.jpg)
• What oscillator frequency is needed to heterodyne 629 kHz up to 3.58 MHz?
A.3 MHzB. 4.21 MHzC. 6.3 MHzD. 10 MHz
![Page 211: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/211.jpg)
• What oscillator frequency is needed to heterodyne 629 kHz up to 3.58 MHz?
A.3 MHzB. 4.21 MHzC. 6.3 MHzD. 10 MHz
![Page 212: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/212.jpg)
• A comb filter is used to
A. cancel chroma crosstalkB. separate white from black C. clip the sync from blanking D. separate alternating from direct current
![Page 213: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/213.jpg)
• A comb filter is used to
A. cancel chroma crosstalkB. separate white from black C. clip the sync from blanking D. separate alternating from direct current
![Page 214: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/214.jpg)
• Switching for each field is required for the
A. audio headB. control-track headC. video headsD. erase head
![Page 215: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/215.jpg)
• Switching for each field is required for the
A. audio headB. control-track headC. video headsD. erase head
![Page 216: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/216.jpg)
• Servocontrol of speed and phase is used for the
A. control headB. erase headC. audio headD. video head scanner
![Page 217: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/217.jpg)
• Servocontrol of speed and phase is used for the
A. control headB. erase headC. audio headD. video head scanner
![Page 218: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/218.jpg)
• The part that rotates to meter out the tape at constant speed is the
A. control headB. erase headC. entrance guide D. capstan
![Page 219: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/219.jpg)
• The part that rotates to meter out the tape at constant speed is the
A. control headB. erase headC. entrance guide D. capstan
![Page 220: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/220.jpg)
• To make the tape speed the same in playback as in recording, the tape speed is regulated by the
A. audio trackB. control-track pulsesC. video slant tracks D. erase head
![Page 221: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/221.jpg)
• To make the tape speed the same in playback as in recording, the tape speed is regulated by the
A. audio trackB. control-track pulsesC. video slant tracks D. erase head
![Page 222: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/222.jpg)
• Tilting the video head gaps is necessary with the
A. color-underB. zero guard bandsC. FM luminance signalD. long-play tubes
![Page 223: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/223.jpg)
• Tilting the video head gaps is necessary with the
A. color-underB. zero guard bandsC. FM luminance signalD. long-play tubes
![Page 224: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/224.jpg)
• Which system uses a laser light beam for
playback?
A. CEDB. VHDC. BetamaxD. VLP
![Page 225: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/225.jpg)
• Which system uses a laser light beam for
playback?
A. CEDB. VHDC. BetamaxD. VLP
![Page 226: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/226.jpg)
• In the CED system, the disk capacitance varies with the
A. pit depthB. disk sizeC. speed of rotationD. wavelength of the scanning light
![Page 227: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/227.jpg)
• In the CED system, the disk capacitance varies with the
A. pit depthB. disk sizeC. speed of rotationD. wavelength of the scanning light
![Page 228: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/228.jpg)
• The modulated picture carrier wave includes the composite video signal as the
A. average carrier levelB. symmetric envelope of amplitude variationsC. lower sideband without the upper sidebandD. upper envelope without the lower envelope
![Page 229: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/229.jpg)
• The modulated picture carrier wave includes the composite video signal as the
A. average carrier levelB. symmetric envelope of amplitude variationsC. lower sideband without the upper sidebandD. upper envelope without the lower envelope
![Page 230: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/230.jpg)
• Which of the following statements is true?
A. Negative transmission means that the carrier amplitude decreases for black
B. Negative transmission means that the carrier amplitude decreases for white
C. Vestigial sideband transmission means that both upper and lower sidebands are transmitted for all modulating frequencies
D. Vestigial sideband transmission means that the modulated picture carrier signal has only the upper envelope
![Page 231: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/231.jpg)
• Which of the following statements is true?
A. Negative transmission means that the carrier amplitude decreases for black
B. Negative transmission means that the carrier amplitude decreases for white
C. Vestigial sideband transmission means that both upper and lower sidebands are transmitted for all modulating frequencies
D. Vestigial sideband transmission means that the modulated picture carrier signal has only the upper envelope
![Page 232: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/232.jpg)
• With a 2 – MHz video signal modulating the picture carrier signal for Channel 4 (66 to 72 MHz), which of the following frequencies are transmitted?
A. 66 – MHz carrier frequency and 68 – MHz upper side frequency
B. 71.75 – MHz carrier frequency with 69 – and 73 – MHz side frequencies
C. 67.25 – MHz carrier frequency with 65.25 – and 69.25 – MHz side frequencies
D. 67.25 – MHz carrier and 69.25 – MHz upper side frequency
![Page 233: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/233.jpg)
• With a 2 – MHz video signal modulating the picture carrier signal for Channel 4 (66 to 72 MHz), which of the following frequencies are transmitted?
A. 66 – MHz carrier frequency and 68 – MHz upper side frequency
B. 71.75 – MHz carrier frequency with 69 – and 73 – MHz side frequencies
C. 67.25 – MHz carrier frequency with 65.25 – and 69.25 – MHz side frequencies
D. 67.25 – MHz carrier and 69.25 – MHz upper side frequency
![Page 234: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/234.jpg)
• With a 0.5 – MHz video signal modulating the picture carrier,
A. both upper and lower side frequencies are transmitted
B. only the upper side frequency is transmittedC. only the lower side frequency is transmittedD. no side frequencies are transmitted
![Page 235: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/235.jpg)
• With a 0.5 – MHz video signal modulating the picture carrier,
A. both upper and lower side frequencies are transmitted
B. only the upper side frequency is transmittedC. only the lower side frequency is transmittedD. no side frequencies are transmitted
![Page 236: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/236.jpg)
• In all standard television broadcast channels, the difference between the picture and sound carrier frequencies is
A. 0.25 MHzB. 1.25 MHzC. 4.5 MHzD. 6 MHz
![Page 237: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/237.jpg)
• In all standard television broadcast channels, the difference between the picture and sound carrier frequencies is
A. 0.25 MHzB. 1.25 MHzC. 4.5 MHzD. 6 MHz
![Page 238: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/238.jpg)
• The difference between the sound carrier frequencies in two adjacent channels is
A. 0.25 MHzB. 1.25 MHzC. 4.5 MHzD. 6 MHz
![Page 239: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/239.jpg)
• The difference between the sound carrier frequencies in two adjacent channels is
A. 0.25 MHzB. 1.25 MHzC. 4.5 MHzD. 6 MHz
![Page 240: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/240.jpg)
• Line-of-sight transmission is a characteristic of propagation for the
A. VHF band and higher frequenciesB. VHF band but not the UHF bandC. radio frequencies below 1 MHzD. AM picture signal but not the FM sound signal
![Page 241: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/241.jpg)
• Line-of-sight transmission is a characteristic of propagation for the
A. VHF band and higher frequenciesB. VHF band but not the UHF bandC. radio frequencies below 1 MHzD. AM picture signal but not the FM sound signal
![Page 242: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/242.jpg)
• In channel 14 (470 to 476 MHz), the 3.58 – MHz color signal is transmitted at
A. 471.25 MHzB. 473.25 MHzC. 474.83 MHz D. 475.25 MHz
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• In channel 14 (470 to 476 MHz), the 3.58 – MHz color signal is transmitted at
A. 471.25 MHzB. 473.25 MHzC. 474.83 MHz D. 475.25 MHz
![Page 244: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/244.jpg)
• The difference between the sound carrier and color subcarrier frequencies is
A. 4.5 MHzB. 1.25 MHzC. 0.92 MHzD. 0.25 MHz
![Page 245: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/245.jpg)
• The difference between the sound carrier and color subcarrier frequencies is
A. 4.5 MHzB. 1.25 MHzC. 0.92 MHzD. 0.25 MHz
![Page 246: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/246.jpg)
• The maximum deviation of the FM sound signal, in kilohertz, is
A.10B. 25C. 75D. 100
![Page 247: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/247.jpg)
• The maximum deviation of the FM sound signal, in kilohertz, is
A.10B. 25C. 75D. 100
![Page 248: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/248.jpg)
• Which of the following applies for a
monochrome picture?
A.Chroma amplifier onB. Chroma amplifier offC. Picture tube off D. Delay line open
![Page 249: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/249.jpg)
• Which of the following applies for a
monochrome picture?
A.Chroma amplifier onB. Chroma amplifier offC. Picture tube off D. Delay line open
![Page 250: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/250.jpg)
• Which of the following is NOT tuned to 3.8 MHz?
A. burst amplifierB. video preamplifierC. Chroma amplifierD. Color demodulator input
![Page 251: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/251.jpg)
• Which of the following is NOT tuned to 3.8 MHz?
A. burst amplifierB. video preamplifierC. Chroma amplifierD. Color demodulator input
![Page 252: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/252.jpg)
• The contrast control is in the
A. chroma amplifierB. color killerC. Y video amplifier D. delay line
![Page 253: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/253.jpg)
• The contrast control is in the
A. chroma amplifierB. color killerC. Y video amplifier D. delay line
![Page 254: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/254.jpg)
• The color level control is in the
A. demodulatorB. BPAC. AFPCD. G – Y amplifier
![Page 255: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/255.jpg)
• The color level control is in the
A. demodulatorB. BPAC. AFPCD. G – Y amplifier
![Page 256: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/256.jpg)
• The color oscillator does not operate. The trouble is
A. incorrect huesB. excessive confettiC. no color D. no Picture
![Page 257: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/257.jpg)
• The color oscillator does not operate. The trouble is
A. incorrect huesB. excessive confettiC. no color D. no Picture
![Page 258: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/258.jpg)
• The balance for Y video signals to the three
guns in the picture tube is set by the
A. screen controlsB. tint controlC. contrast controlD. drive controls
![Page 259: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/259.jpg)
• The balance for Y video signals to the three
guns in the picture tube is set by the
A. screen controlsB. tint controlC. contrast controlD. drive controls
![Page 260: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/260.jpg)
• Which signal needs a 0.8 – us time delay?
A. 3.58 – MHz chromaB. B – Y video C. Y video D. Color Bursa
![Page 261: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/261.jpg)
• Which signal needs a 0.8 – us time delay?
A. 3.58 – MHz chromaB. B – Y video C. Y video D. Color Bursa
![Page 262: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/262.jpg)
• The output of the Burst separator feeds the
A. color demodulatorsB. G – Y adderC. AFPC for color oscillatorD. Y video amplifier
![Page 263: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/263.jpg)
• The output of the Burst separator feeds the
A. color demodulatorsB. G – Y adderC. AFPC for color oscillatorD. Y video amplifier
![Page 264: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/264.jpg)
• The output of the color oscillator feeds the
A. chroma BPAB. color demodulatorsC. picture tubeD. burst separator
![Page 265: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/265.jpg)
• The output of the color oscillator feeds the
A. chroma BPAB. color demodulatorsC. picture tubeD. burst separator
![Page 266: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/266.jpg)
• Drifting color bars in the picture indicate trouble in the
A. Y video amplifierB. chroma BPAC. color killerD. AFPC for color oscillator
![Page 267: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/267.jpg)
• Drifting color bars in the picture indicate trouble in the
A. Y video amplifierB. chroma BPAC. color killerD. AFPC for color oscillator
![Page 268: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/268.jpg)
• The beat frequency between the 3.58 – MHz color subcarrier and the 4.5 – MHz sound signal is
A. 0.92 MHzB. 3.58 MHzC. 4.8 MHzD. 4.5 MHz
![Page 269: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/269.jpg)
• The beat frequency between the 3.58 – MHz color subcarrier and the 4.5 – MHz sound signal is
A. 0.92 MHzB. 3.58 MHzC. 4.8 MHzD. 4.5 MHz
![Page 270: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/270.jpg)
• Which control varies the phase angle of the demodulated color video signal?
A. Color levelB. TintC. DriveD. Picture
![Page 271: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/271.jpg)
• Which control varies the phase angle of the demodulated color video signal?
A. Color levelB. TintC. DriveD. Picture
![Page 272: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/272.jpg)
• Which of the following stages must be on during horizontal flyback time?
A. Y video amplifierB. Chroma BPAC. Burst separator D. Color oscillator
![Page 273: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/273.jpg)
• Which of the following stages must be on during horizontal flyback time?
A. Y video amplifierB. Chroma BPAC. Burst separator D. Color oscillator
![Page 274: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/274.jpg)
• Which of the following stages has bias from the ACC and color-killer circuits?
A. R – Y demodulatorB. R – Y video amplifierC. Chroma BPA D. Color oscillator
![Page 275: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/275.jpg)
• Which of the following stages has bias from the ACC and color-killer circuits?
A. R – Y demodulatorB. R – Y video amplifierC. Chroma BPA D. Color oscillator
![Page 276: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/276.jpg)
• A crystal-ringer circuit is used for the
A. Y video amplifierB. AFPC on color oscillatorC. color demodulators D. chroma BPA
![Page 277: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/277.jpg)
• A crystal-ringer circuit is used for the
A. Y video amplifierB. AFPC on color oscillatorC. color demodulators D. chroma BPA
![Page 278: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/278.jpg)
• Which of the following is a midband cable TV channel?
A. 6B. 7C. A or 14D. J or 23
![Page 279: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/279.jpg)
• Which of the following is a midband cable TV channel?
A. 6B. 7C. A or 14D. J or 23
![Page 280: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/280.jpg)
• Coaxial cable for distribution systems has an impedance of
A.50 ohmsB. 75 ohmsC. 150 ohmsD. 300 ohms
![Page 281: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/281.jpg)
• Coaxial cable for distribution systems has an impedance of
A.50 ohmsB. 75 ohmsC. 150 ohmsD. 300 ohms
![Page 282: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/282.jpg)
• The cable converter output for the TV receiver is usually on channel
A. 3B. 6C. 7D. 9
![Page 283: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/283.jpg)
• The cable converter output for the TV receiver is usually on channel
A. 3B. 6C. 7D. 9
![Page 284: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/284.jpg)
• The VSWR for a line terminated in its Z0 is
A. 0B. 1C. 1.5D. 2
![Page 285: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/285.jpg)
• The VSWR for a line terminated in its Z0 is
A. 0B. 1C. 1.5D. 2
![Page 286: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/286.jpg)
• How many dBmV units correspond to a 1 – mV signal level?
A.0B. 1C. 3D. 6
![Page 287: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/287.jpg)
• How many dBmV units correspond to a 1 – mV signal level?
A.0B. 1C. 3D. 6
![Page 288: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/288.jpg)
• A tap for the subscriber drop line has a
A. high insertion lossB. high tap lossC. low tap loss D. 300 – ohm impedance
![Page 289: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/289.jpg)
• A tap for the subscriber drop line has a
A. high insertion lossB. high tap lossC. low tap loss D. 300 – ohm impedance
![Page 290: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/290.jpg)
• The most popular plug for RG – 59U coaxial cable is the
A. RCA phonograph plugB. 4 – pin DIN connectorC. F connectorD. banana pin
![Page 291: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/291.jpg)
• The most popular plug for RG – 59U coaxial cable is the
A. RCA phonograph plugB. 4 – pin DIN connectorC. F connectorD. banana pin
![Page 292: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/292.jpg)
• Which of the following is TRUE?
A. Excessive signal causes snow in the pictureB. A weak signal causes cross-modulation
distortionC. A weak signal causes snow in the pictureD. A scrambled signal has excessive sync
amplitide
![Page 293: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/293.jpg)
• Which of the following is TRUE?
A. Excessive signal causes snow in the pictureB. A weak signal causes cross-modulation
distortionC. A weak signal causes snow in the pictureD. A scrambled signal has excessive sync
amplitide
![Page 294: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/294.jpg)
• The upstream signal in two-way cable systems has the frequency of
A.5 to 30 MHzB. 3 to 300 MHzC. 500 MHzD. 13 GHz
![Page 295: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/295.jpg)
• The upstream signal in two-way cable systems has the frequency of
A.5 to 30 MHzB.3 to 300 MHzC.500 MHzD.13 GHz
![Page 296: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/296.jpg)
• A typical value for the IF signal, in megahertz, for up-down cable converters is
A. 45.75B. 300.75C. 500.75D. 612.75
![Page 297: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/297.jpg)
• A typical value for the IF signal, in megahertz, for up-down cable converters is
A. 45.75B. 300.75C. 500.75D. 612.75
![Page 298: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/298.jpg)
• Frequency synthesis is used for
A. VCO in the up converterB. the trunk amplifierC. fiber-optic cableD. microwave links
![Page 299: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/299.jpg)
• Frequency synthesis is used for
A. VCO in the up converterB. the trunk amplifierC. fiber-optic cableD. microwave links
![Page 300: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/300.jpg)
• For in-band descramblers, the decoding pulses are sent on the
A. color subcarrierB. sound carrierC. picture carrierD. H sync pulses
![Page 301: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/301.jpg)
• For in-band descramblers, the decoding pulses are sent on the
A. color subcarrierB. sound carrierC. picture carrierD. H sync pulses
![Page 302: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/302.jpg)
• Which of the following is NOT true?
A. Microwave links can use FMB. Fiber-optic cables very high lossesC. Super trunk lines use large cable for low
lossesD. The value 13 GHz is in the microwave band
![Page 303: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/303.jpg)
• Which of the following is NOT true?
A. Microwave links can use FMB. Fiber-optic cables very high lossesC. Super trunk lines use large cable for low
lossesD. The value 13 GHz is in the microwave band
![Page 304: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/304.jpg)
• A trunk cable run a loss of -20 dBmV. To make
up for this loss, the voltage gain of the next amplifier should be at least
A. 10B. 100C. 200D. 300
![Page 305: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/305.jpg)
• A trunk cable run a loss of -20 dBmV. To make
up for this loss, the voltage gain of the next amplifier should be at least
A. 10B. 100C. 200D. 300
![Page 306: GROB TV_ppt.ppt](https://reader036.vdocument.in/reader036/viewer/2022062411/55cf9dad550346d033aeaa55/html5/thumbnails/306.jpg)