Television Engineering MCQs

Question 1

Interlacing is used in TV frames to

Accepted Answer

avoid flicker

Answer

produce illusion of motion

Answer

ensure scanning of all lines

Answer

avoid Humming

Question 2

The separation of sound and picture carriers in our TV system is ? MHz.

Accepted Answer

5.5

Answer

4.5

Answer

6

Answer

5

Question 3

The maximum swing of the sound carrier in our TV system is ?kHz.

Accepted Answer

? 25

Answer

? 10

Answer

15

Answer

28

Question 4

The output stage of a TV transmitter is usually

Accepted Answer

grid modulated class-C amplifier

Answer

plate modulited class-C amplifier

Answer

grid modulated class-A amplifier

Answer

none of above

Question 5

Interlacing is used in television to

Accepted Answer

avoid flicker

Answer

produce the illusion of motion

Answer

ensure that all the lines on the screen are scanned, not merely the alternate ones

Answer

simplify the vertical sync pulse train

Question 6

An odd number of lines per frame forms part of every one of the world's TV systems. This is

Accepted Answer

done to assist interlace

Answer

purely an accident

Answer

to ensure that line and frame frequenices 'can be obtained from the same original source

Answer

done to minimize interference with the chroma subcarrier

Question 7

TV broadcasting system in India is as per CCIR

Accepted Answer

system B

Answer

system I

Answer

system M

Answer

system X

Question 8

Equalising pulsing in T.V. are sent during

Accepted Answer

vertical blanking

Answer

horizontal blanking

Answer

horizontal retrace

Answer

flukering

Question 9

If normal line sync pulse width is 4.6 its, width of equalizing pulse is ?its

Accepted Answer

2.3

Answer

4.6

Answer

9.2

Answer

1.5