communication and electronics 5

7/29/2019 Communication and Electronics 5

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Programming of a continuous-path robot is normally carried out by a method called ___ walk through

What is the carrier frequency of the supergroup 10? 3100kHz

A satellite was launched with a speed of 25000 miles per hour and breaks away with the

gravitational pull of the earth and not in orbitdeep space?Space probe

What to consider in choosing a primary cellcost, life, ease of replacement,

voltage and current needs

What is the minimum modulating frequency of FM? 20 Hz

What is the voltage for the local-loop on-hook? -48Vdc

What is another term for thermoelectric effect? Seebeck effect

Class of amplifier usually employed in driver stage? Class A

What is the process of interaction or interconversion between electric and chemical

formula?Electrochemistry

The mandatory 1910 to 1912 ship-to-shore communication were established by US, Great

Britain as a result of the sinking of two famous ships, What are these two ships? Republic and Titanic

Cable used in 100Mbps Ethernet UTP category 5

No. of subscribers that can be served by cellular telephone with 5 radio channel 100

Carrier frequency for CATV above the lower frequency limit 1.25Mhz + 25kHz

Permit fee in establishing CATV headend 900

Subatomic particle that has no rest mass and travels in speed of light neutrino

What is the reason why splices are better than connectors because splices have no air gaps

leading p.f. the armature flux in an alternator ___ the rotor flux aids

What is the operating temperature of a Class B motor 130 degree celsius

What is the operating temperature of a Class H motor 180 degree celsius

What is the operating temperature of a Class A motor 105 degree celsius

What is the operating temperature of a Class F motor 155 degree celsius

__ milliroentgen per hour is the allowable exposure to radiation 0.5Maximun power of class III analog cellular phone 3W

ITU standard for video conferencing in telephone line H.261

who propose the idea subatomic to atom manipulation Richard Feynman

type of convergence adjust at the back of TV magnetic ring static convergence

one diode rectifier is connected with a voltage doubler voltage tripler

the secret code w/c secures and defends sensitive information that crosses over public

channelselectronic key

height of the GPS satellite orbit in nautical mile 10898

what is meant by GMDSSGlobal Maritime Distress and Safety

System

what is the disadvantage of conventional full wave rectifier?peak voltage is half of that half waverectifier

discovered transistor in Bardeen and Brattain

op-amps with negative feedback, reduced voltage works as a ___ linear amplifier

hot wire ammeter measures____ of current output of a full wave rectifier 0.707

decrease in thermal noise powerdecrease in BW and temperature in

circuits

what part of the visible radio spectrum does camera tube has greater output? yellow green


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instrument used in measuring large energy radiation posimeter

loudness level that can cause hearing damage 150dB

a point in line between center of the earth and the observer farther ffom the earths

centerNadir

what is required in small network in connecting computer directly through terminals not

by hubcrossover cable

method in manufacturing IC in which the element penetrates the substrate diffusion method

hold atoms in a crystal covalent bond

mechanical power output of dc motor is equal to __ back emf x armature current

common use of anthropomorphic type of robot arm spray paint

pair of metals used as good electrodes in wet cell battery zinc and copper

instrument w/c uses magnetic field from fixed and moving coils to measure voltage,

current and powerelectrodynamometer

bytes w/c computer will calculate in 2050 according to Moore's law 500 Trillion

no. of protons in oxygen atom 8

standard cell w/c is 0.005% less accurate Welton unsaturated cell

in class C amplifier, the power output increases _____ if conduction angle increases

process used to prevent the meter needle to overshoot the current reading damping

simplest type of motor controller toggle switch

generate triangular waves, square waves nonsinusoidal wave generator

what is another term for magnetic amplifier low frequency amplifier

meter pointer of PMMC instrument uniform because it is spring controlled

used to locate conductor cable in cross connection type varley loop

generating static electricity electrophorous

metal semiconductor junction made of aluminum and n-type silicon schottky diode

purpose of adding inductor to the amplifier high frequency compensation

standard programming language of US Defense Dept similar to Pascal ADA

irregular termination of call to the total number of call drop call rate

velocity factor of coax cable 0.6 to 0.8

time of orbiting in GPS constellation 12H

minimum number of segments used to display any number 7

similar to the operation of control of water in the hose JFET

user guide to open www pages browser

reciprocal of wavelength wave number

difference in the primaries of ac and dc primary excitation

opamps characteristic short circuit protection, no latch up,input-offset nulling

electric shock and electric therapy will pass current to what part of the body brain

the reciprocal of the atomic mass units in gram avogadro's number

what determines the identity of the element atomic number

what is usually the range of value in choosing choke? from 1 to 20 Henrys

in CATV, what terminal isolation is provided to each subscriber 28dB


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Time Division Duplexing (TDD) is the transmission signal format be cordless telephone-2

(CT) dubbed as ___portable payphone booth

the transformer connected in a special way, to connect balance and unbalanced or vice

versa, and provide impedance matching.balun

what is a popular fiber optic cable, with glass core and plastic cladding Plastic Clad Silica (PCS)

the disadvantage of plastic core in fiber optic high attenuation

the disadvantage of glass core in fiber optic brittle

what are four basic types of secondary celllead-acid, nickel cadmium, silver-zinc,

silver-cadmium

what element is MOSFET isolated from the channel material? gate terminal

an industrial robot ismulti-functional, servo-controlled,

programmable

what is an electronic oscillator? it is an amplifier with feedback

what is commonly used in heart pacemaker? lithium cell

what interface standard is used in connecting a printer to a computer? centronics interface

general purpose op-amp LM101A

what E.O. vesting jurisdictionfor the Philippine Communication Satellite? E.O. 196

used to measure the permeability of a ferromagnetic material permeameter

what circuit can be active or passive (w/ capacitor, resistor, and inductor) balanced circuit

serve as a rectifier in motors commutator

motor connected in parallel will share the load according to ___ motor rating

speed of AC motor depends in its___ load

data transfer of GPRS above 170kbps

what instrument uses lux as its unit? light meter

typical output power of reflex klystron 100mW

charge of alpha particles 2x1.06x10 -19 coulombs

electron is a subatomic particle belongs to the lepton family has a rest mass of ___ 9.1066x10 -28 grams

what is the characteristic of thermoplastic? it soften when heated

180 degrees out of phase with red cyan

replacement to LC tuned circuit in UHF transmission lines

damage to the reproductive tissue caused by UV.. Genetics

damage to tissue not only to reproductive tissue somatic

earliest form of micro module cordwood module

silicon transducer temperature 100 to 200 degrees celsius

transferring of information to active computer to computer back talk

several disk comprises of ar disk or hard drive platters

coating thickness of 0.0001 cm thick film

how thick film is developed by screening

frequency that has the highest noise factor in transistor DC

in CATV, the sound signal attenuation 13-17dB

after the effectivity of RA9292, for registered ECE may apply for PECE at least how many

years?7

not using TDMA multiplexing IS-95


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for the development of voltage control acquisition phase lock

internet access, 6MHz TV bandwidth data rates 27Mbps

antenna which is direct connectino to waveguide horn and slot antenna

maximum sound pressure level that can be allowed to be heard 120dB

measurement of the virtual height of the ionosphere ionosonde

CATV noise figure 6dB or better

inspection fee for CATV head-end station 300

IMT-2000 maximum rate for mobile services 144kbps

selective signalling where low frequency trigger the squelch circuit continuous tone control

science that measure the entire electromagnetic spectrum radiometry

height of antenna for CB radio 60ft above ground or 20 ft above bldg

instrument used to measure oxygen in blood oxymeter

also known as geographical north true north

alkaline battery 1.5V

chairman of NTC Ronald Olivar Solis

low data rate compression used in Cd ROMs MPEG-1

threshold of audibility 10 -12 W/m2science of mechanical and electronics mechatronics

process of firing a rocket by underground control to maintain and adjust the orbit station keeping

permit fee for the inport of cable tv equipment 100

commonly used gas for jet thrusters hydrazine

used when VNL exceeds 2.5dB echo suppressor

having one modem per computer and individual phone lines for each modem pool

communication and electronics 5

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