u.s.c.g. merchant marine exam master or mate less than 200 ... · 8/30/2019 · q152 nav general...

National Maritime Center Serving Our Nation’s Mariners

U.S.C.G. Merchant Marine Exam

Master or Mate Less than 200 Gross Registered Tons

Q152-Navigation General-Oceans or Near Coastal

(Sample Examination)

of 14 Q152-Navigation General-Oceans or Near Coastal

8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2

Choose the best answer to the following Multiple Choice Questions.

1. Which term is given to the mechanical lifting of air by the upslope slant of the terrain?

o (A) Advective lifting o (B) Convective lifting • (C) Topographic lifting o (D) Vertical lifting

If choice C is selected set score to 1.

2. You are steering a southerly course, and you note that the chart predicts an easterly current. Without considering wind, how may you allow for the set?

o (A) Decrease your speed o (B) Head your vessel slightly to the left o (C) Increase your speed • (D) Head your vessel slightly to the right

If choice D is selected set score to 1.

3. If an observer in the Northern Hemisphere faces the surface wind, where is the center of low pressure located?

• (A) To the right, and slightly behind o (B) To the left, and slightly in front o (C) To the right, and slightly in front o (D) To the left, and slightly behind

If choice A is selected set score to 1.

4. When using a recording depth finder in the open ocean, what phenomena is most likely to produce a continuous trace that may not be from the actual ocean bottom?

• (A) Echoes from a deep scattering layer o (B) Multiple returns reflected from the bottom to the surface and to the bottom again o (C) Echoes from schools of fish o (D) Poor placement of the transducer on the hull


5. When using a radar in an unstabilized mode, fixes are determined most easily from __________.

o (A) center bearings o (B) objects that are close aboard o (C) tangent bearings • (D) ranges



8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2 6. When a buoy is in position only during a certain period of the year, where may the dates when the

buoy is in position be found?

o (A) Coast Pilot • (B) Light List o (C) On the chart o (D) Notice to Mariners

If choice B is selected set score to 1.

7. Which is the term given to the time required for a lighted aid to complete a full cycle of light changes?

o (A) Set o (B) Frequency o (C) Function • (D) Period


8. You are underway on course 328°T when you sight a buoy broad on your port bow. Which would indicate that you are in the best navigable water?

o (A) The buoy is a western quadrant buoy o (B) The buoy is painted yellow on the top half and black on the bottom o (C) The buoy has a topmark of two cones with points down • (D) The buoy exhibits a light with the characteristic of VQ(3)5s


9. What is the approximate geographic range of Point Judith Light, Rhode Island, if your height of eye is 62 feet (18.9 meters)? Refer to "Reprints from the LIGHT LISTS AND COAST PILOTS". (use charted range of 20 miles as nominal range)

o (A) 9.6 nm o (B) 16.5 nm • (C) 18.6 nm o (D) 20.7 nm



8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2 10. You are in a channel inbound from sea. A daymark used to mark a channel junction when the

preferred channel is to starboard will have the shape indicated by what letter in illustration D045NG below?

• (A) A o (B) B o (C) C o (D) D


11. Isobars on a weather map are useful in predicting which element of the weather?

o (A) The relative humidity • (B) The wind velocity o (C) The temperature o (D) The dew point


12. On 23 March 1983, at Kingston Point, NY, what is the earliest time after 1700 EST (ZD +5) that the predicted tide will be +2.0 feet?

o (A) 1730 o (B) 1800 • (C) 1854 o (D) 2030


13. Which publication lists Class I and II private aids to navigation in or along navigable waters of the United States?

o (A) Sailing Directions o (B) List of Private Aids • (C) Light List o (D) Aids to Navigation Manual


14. Which nautical charts are intended for coastwise navigation outside of outlying reefs and shoals?

• (A) General charts o (B) Approach charts o (C) Coastal charts o (D) Sailing charts



8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2 15. Where can information for updating paper nautical charts primarily be found?

• (A) Notice to Mariners o (B) Coast Pilots o (C) Nautical chart catalogs o (D) Sailing Directions


16. Under the U.S. Aids to Navigation System on the Western Rivers, which describes the daymarks on the right descending bank?

o (A) Red triangular-shaped panels with red reflector borders o (B) Red diamond-shaped panels with red reflector borders o (C) Green triangular-shaped panels with green reflector borders • (D) Green square-shaped panels with green reflector borders


17. Which is TRUE for the directive force acting on a gyrocompass?

• (A) The force increases as the latitude decreases, being maximum at the geographic equator o (B) The force is greatest when a vessel is near the Earth's magnetic equator o (C) The force remains the same at all latitudes o (D) The force increases as the latitude increases, being maximum at the geographic poles


18. What is the gyrocompass error resulting from your vessel's movement in OTHER than an east-west direction?

• (A) Speed error o (B) Damping error o (C) Quadrantal error o (D) Ballistic deflection


19. Under the U.S. Aids to Navigation System on the Western Rivers, which is TRUE of a preferred channel buoy?

• (A) It shall be horizontally-banded red and green o (B) It shall be vertically-striped red and white o (C) It shall be solid green o (D) It shall be solid red



8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2 20. You are anchored in the Aleutian Island chain and receive word that a tsunami is expected to strike

the islands in six hours. What is the safest action?

o (A) Plant both anchors with about a 60° angle between them, and let out a long scope to each anchor.

o (B) Increase the scope of the anchor cable and drop the second anchor underfoot at short stay. o (C) Get underway and be close inshore on the side of the island away from the tsunami. • (D) Get underway and be in deep, open-ocean water when the tsunami arrives.


21. The true course from point A to point B is 317°. A SSW wind causes a 4° leeway, variation is 6°W and deviation is 1°E. What is the magnetic compass course to steer to make good the true course?

o (A) 308°psc o (B) 313°psc o (C) 326°psc • (D) 318°psc


22. What wind reverses directions seasonally?

o (A) Hooked trades o (B) Secondary winds o (C) Jet stream • (D) Monsoon winds


23. Where will you find information about the duration of slack water for ports on the Atlantic Coast of North America?

o (A) American Practical Navigator o (B) Sailing Directions • (C) Tidal Current Tables o (D) Tide Tables


24. Which level of accuracy can be obtained utilizing the U.S. Coast Guard's Maritime Differential GPS in an established coverage area?

• (A) 10 meters o (B) 20 meters o (C) 50 meters o (D) 92 meters



8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2 25. If several navigational lights are visible at the same time, each one may be positively identified by

checking all of the following EXCEPT what against the Light List?

o (A) Color o (B) Rhythm • (C) Intensity o (D) Period


26. You will be entering the Mystic River in Connecticut. What is the current at the Highway Bridge at 1900 EST (ZD +5) on 24 January 1983?

o (A) Slack water o (B) 2.2 knots flooding o (C) 2.5 knots ebbing • (D) Slight ebb


27. The National Oceanic and Atmospheric Administration publishes which item?

o (A) Light Lists o (B) Sailing Directions • (C) Coast Pilots o (D) pilot charts


28. While on a course of 192°T, a light bears 11° on the starboard bow at a distance of 12.7 miles. What course should you steer to pass 3 miles abeam of the light leaving it to starboard?

o (A) 173°T o (B) 185°T • (C) 189°T o (D) 167°T


29. Which line connects the points of zero magnetic dip?

o (A) An agonic line o (B) A magnetic meridian • (C) The magnetic equator o (D) The terrestrial equator



8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2 30. Which publication should you check for complete information on Puget Sound weather conditions?

o (A) Sailing Directions • (B) Coast Pilot o (C) Chart of the area o (D) Light List


31. What is a sling psychrometer used to measure?

o (A) The engine temperature o (B) The sea water temperature • (C) The dry bulb and wet bulb temperatures o (D) The barometric pressure


32. Sometimes foreign charts are reproduced by NGA. On such a chart a wire dragged (swept) area may be shown in purple or which other color?

o (A) Yellow o (B) Red o (C) Magenta • (D) Green


33. You are sailing south on the Intracoastal Waterway (ICW) when you sight a red nun buoy with a yellow square painted on it. Which statement is TRUE?

o (A) The buoy is off station and should be ignored as a navigational mark. o (B) ICW traffic should not proceed beyond the buoy unless the crossing waterway is clear of all

traffic. o (C) The waterway in that area has shoaled and the available depth of water is less than the

project depth. • (D) You should leave the buoy to port.


34. When drawing a weather map and an isobar crosses a front, the isobar is drawn __________.

o (A) kinked and pointing towards the low • (B) kinked and pointing away from the low o (C) perpendicular to the front o (D) kinked and pointing towards the high for a warm front only



8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2 35. Which type of cloud is composed entirely of ice crystals and is found at very high altitudes?

• (A) Cirrus o (B) Cumulus o (C) Stratus o (D) Nimbostratus


36. You are on course 251°pgc and 241° per magnetic compass, when you observe a range in line bearing 192°pgc. The chart indicates that the range is in line on a bearing of 194°T. The variation is 16°E. What is the deviation of the magnetic compass?

o (A) 2°E o (B) 2°W • (C) 4°W o (D) 10°W


37. Which wind is a strong, often violent, northerly wind occurring on the Pacific coast of Mexico, particularly during the colder months?

o (A) Norther o (B) Pampero o (C) Papagayo • (D) Tehuantepecer


38. What is the average speed of movement of a hurricane prior to recurvature?

o (A) 4 to 6 knots o (B) 6 to 8 knots • (C) 10 to 12 knots o (D) 15 to 20 knots


39. An orange and white buoy marking an area where operating restrictions are in effect will be marked with which symbol?

o (A) Diamond with a cross o (B) Open-faced diamond • (C) Circle o (D) Rectangle



8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2 40. Which is TRUE of an aneroid barometer?

o (A) An instrument used to measure the speed of wind o (B) An instrument that is used to measure the height of waves • (C) An instrument in which the pressure of the air is measured o (D) An instrument that tells which direction a storm is coming from


41. You depart LAT 40°42.0'N, LONG 74°01.0'W, and steam 3365.6 miles on course 118°T. What is the longitude of your arrival by Mercator sailing?

• (A) 17°41.0'W o (B) 10°46.0'W o (C) 22°58.0'W o (D) 24°29.0'W


42. Which measurement uses mean high water as the reference plane?

o (A) All vertical measurements on charts o (B) Soundings on the East and West Coasts o (C) Water depths on the East Coast only • (D) Heights above water of land features such as lights


43. What do chart legends printed in capital letters indicate about the associated landmark?

o (A) It is a government facility or station o (B) The landmark has a radio transmitter • (C) The landmark is conspicuous o (D) The landmark is inconspicuous


44. Under the IALA Buoyage System, which topmark shown in illustration D023NG below will be displayed on a safe watermark?

• (A) A o (B) B o (C) C o (D) D



8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2 45. On 4 October your 1907 zone time DR position is LAT 25°15.0'S, LONG 105°44.0'E. At that time,

you observe Deneb bearing 011.5°psc. The chronometer reads 00h 07m 42s, and the chronometer error is 00m 36s fast. The variation is 7.5°W. What is the deviation of the standard compass?

• (A) 3.2°E o (B) 4.3°W o (C) 2.1°E o (D) 2.1°W


46. When is the greatest directive horizontal force exerted on the magnetic compass of a vessel?

• (A) When the vessel is near the magnetic equator o (B) When the vessel is near the magnetic poles o (C) When the compass needles are nearly in line with the meridian o (D) When the variation is near zero


47. At 1620 ZT on 10 September, in DR position LAT 34° 03.8' N, LONG 050° 28.4' W, you observe an amplitude of the Moon. The Moon's upper limb is observed on the visible horizon and bears 110.2° psc. The variation is 2° E. What is the deviation?

o (A) 2.0°E o (B) 2.0°W • (C) 1.2°E o (D) 1.2°W


48. Which term refers to the direction a current is flowing?

o (A) Drift • (B) Set o (C) Stand o (D) Vector direction


49. In mid-ocean, the characteristics of a wave are determined by three factors. What is NOT one of these factors?

o (A) Fetch o (B) Wind velocity o (C) Length of time a wind has been blowing • (D) Effect of the moon's gravity



8/11/2020

Q152-Navigation General-Oceans or Near Coastal U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 2

50. Which weather element cannot be measured accurately while on board a moving vessel?

o (A) Atmospheric pressureo (B) Wind directiono (C) Temperature• (D) Visibility



8/11/2020

National Maritime Center

Serving Our Nation’s Mariners

8/29/2018

D023NG

Adapted for testing purposes only from BOWDITCH, The American Practical Navigator,

An Epitome of Navigation, Volume I, 1984 Edition

Copyright © 1984 by the Defense Mapping Agency Hydrographic/Topographic Center

Further reproduction prohibited without permission of 14


National Maritime Center

Serving Our Nation’s Mariners

9/10/2018

D045NG

Adapted for testing purposes only from CUTLER, Dutton’s Nautical Navigation, 15th edition

Copyright © 2004 by the U.S. Naval Institute

Further reproduction prohibited without permission of 14


u.s.c.g. merchant marine exam master or mate less than 200 ... · 8/30/2019 · q152 nav general...

Documents