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Monochrome Television Transmitters and Receivers – 1 – 2

6. AGC bias is applied to :

(a) RF, mixer and IF stages
(b) IF stage
(c) RF and IF stage
(d) 
None of these

ANSWER

EXPLANATION

7. The gain of IF section in TV receiver is :

(a) Is of the order of 1000 or so
(b) Depends upon the design and cannot changed
(c) Can be varied with AGC bias cantrol
(d) 
None of these

ANSWER

EXPLANATION

8. Vestigial type modulation gives :

(a) High SNR
(b) Low bandwidth
(c) FM
(d) 
Wide bandwidth

ANSWER

EXPLANATION

9. Loss at low frequencies is caused by :

(a) Shunt capacitor
(b) Coupling capacitor
(c) Decoupling capacitor
(d) 
miller capacitor

ANSWER

EXPLANATION

10. Receiving antenna for television is normally a :

(a) A folded dipole
(b) Parabolic reflector
(c) Yagi antenna
(d) 
Loop antenna

ANSWER

EXPLANATION

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