AM and FM Receivers – 1 – 2

6. Three point tracking is achieved with which of the following ?

(a) Double conversion
(b) Double Spotting
(c) Variable selectivity
(d) The podder capacitor

ANSWER

EXPLANATION

7. …. Modulator is an indirect way of generating FM.

(a) Reactance FET
(b) Varactor FET
(c) Armstrong
(d) Reactance bipolar transistor

ANSWER

EXPLANATION

8. If the output power of radio receiver is doubled, the volume is increased by…….

(a) – 3 dB
(b) 1 dB
(c) 2 dB
(d) 3 dB

ANSWER

EXPLANATION

9. The most common device used for detection in radio receives is a/an :

(a) Transistor
(b) Diode
(c) Amplifiers
(d) Triode

ANSWER

EXPLANATION

10. Receiver having poor if selectivity will have poor :

(a) Sensitivity
(b) Blocking
(c) Diverse reception
(d) All of the above

ANSWER

EXPLANATION

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