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Monochrome Television Transmitters and Receivers – 1 – 1

1. Wideband amplifiers are required for :

(a) Video signal
(b) Audio modulated signal
(c) Hum noise
(d) 
ultrasonic waves

ANSWER

EXPLANATION

2. In television receiver, electron beam is deflected by :

(a) Electromagnetic
(b) Electrostatic
(c) Any of the two
(d) 
None of these

ANSWER

EXPLANATION

3. Los at high frequencies is caused by :

(a) Compiling capacitor
(b) Emitter by pass
(c) Decoupling capacitor
(d) 
Shunt capacitor

ANSWER

EXPLANATION

4. AFC is used for :

(a) AFC of vertical and horizontal osillactor
(b) Horizontal synchronization
(c) Stabilising picture and sound
(d) 
Vertical synchronisation

ANSWER

EXPLANATION

5. FM detector employed in the sound section of a television receiver is generally :

(a) A ratio detector
(b) A frequency discriminator
(c) Either of two
(d) None of these

ANSWER

EXPLANATION

 

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