Television Engineering MCQs

Question 1

The red, green and blue chroma amplifiers drive the

Accepted Answer

colour picture tube

Answer

chroma bandpass amplifiers

Answer

video amplifier

Answer

chroma demodulators

Question 2

Poor convergence produces images which have

Accepted Answer

colour fringing

Answer

aroma phase shift

Answer

random interference

Answer

unstable sync lock

Question 3

The colour-intensity control works by varying

Accepted Answer

amplitude of chroma-signal

Answer

phase of chroma siva!

Answer

output of colour guns

Answer

amplitude of colour brust

Question 4

The colour subcarrier is suppressed at the transmitter in order to

Accepted Answer

minimize interference between chroma signal and Y?signal

Answer

avoid cochannel interference

Answer

save energy

Answer

minimize adjacent channel interference

Question 5

A degaussing coil is used for

Accepted Answer

demagnetising colour picture tubes

Answer

demagnetising transformer cores

Answer

rotating directional antennas

Answer

trap inductors

Question 6

In trouble shooting procedures, current is found by measuring voltage drop across the series resistor and applying law.

Accepted Answer

Ohm's

Answer

Joule's

Answer

Faraday's

Answer

Kirchhoff's

Question 7

The number of 'petals' in a typical vectogram is

Accepted Answer

ten

Answer

four

Answer

eight

Answer

twelve

Question 8

In a TV system, picture scan rate (P) is 30 pictures/second and number of line scans/frame (N) is 525The horizontal sync frequency is ---- Hz.

Accepted Answer

15,750

Answer

60

Answer

30

Answer

17.5

Question 9

Magneta is the complement of

Accepted Answer

green

Answer

red

Answer

yellow

Answer

blue