Television Engineering MCQs

Question 1

The video voltage applied to the picture tube of a television receiver is fed in

Accepted Answer

between grid and cathode

Answer

between grid and ground

Answer

to the yoke

Answer

to the anode

Question 2

In TV the line blanking period is

Accepted Answer

slightly less than the horizontal retrace

Answer

slightly ore than the horizontal retrace

Answer

exactly equal to the horizontal retrace

Answer

none of the above

Question 3

Operator (y) in a image orthicon tube is

Accepted Answer

varies between unity and zero

Answer

unity

Answer

zero

Answer

none of the above

Question 4

The demodulation of the sound signals in a TV receiver is accomplished by

Accepted Answer

discriminator

Answer

Linear detector

Answer

product dector

Answer

envelop dector

Question 5

The service range of TV transmitter is determined by

Accepted Answer

the height and gain of the transmitting and receiving antenna and power of the transmitter

Answer

the height of the transmitting aerial

Answer

the height of the transmitting and that of the receiving antenna

Answer

the height of the transmitting and that of the receiving antenna and power of the transmitter

Question 6

Another name for the horizontal retrace in a TV receiver is the

Accepted Answer

flyback

Answer

brust

Answer

damper

Answer

ringing

Question 7

As the TV picture tube size increase

Accepted Answer

voltage required for picture tube anode decreases

Answer

voltage required for picture tube anode ncreases

Answer

voltage required for picture tube anodes does not change

Answer

none of the above

Question 8

In a TV receiver the contrast is controlled by

Accepted Answer

ac voltage in video signal

Answer

dc voltage in video signal

Answer

both ac and dc voltage

Answer

none of the above

Question 9

In TV receiver if vertical sync. is missing, the picture will

Accepted Answer

roll up and down

Answer

roll horizontally

Answer

roll up and down as well as horizontally

Answer

not be distorted