1. . IF amplifier is designed to amplify _________ frequencies
(A) Audio
(B) Radio
(C) Video
(D) None of above
2. . Standard IF frequency for AM broadcasting is _________
(A) 440 KHz
(B) 455 KHz
(C) 450 KHz
(D) 460 KHz
3. . Standard IF frequency for FM broadcasting is _________
(A) 5.6 MHz
(B) 15 MHz
(C) 10.7 MHz
(D) 455 MHz
4. . The core material used in IFT transformer is _________
(A) Ferrite core
(B) Powdered iron
(C) Soft iron
(D) Magnetic
5. . The input signal of IF amplifier is fed from _________
(A) RF amplifier
(B) Mixer
(C) Detector
(D) Antenna
6. . Neutralization is used in IF amplifiers to_________
(A) Stop oscillation
(B) Increase bandwidth
(C) Improve selectivity
(D) Both a and b
7. . Local oscillator frequency as compared to incoming signal frequency is
(A) High
(B) Low
(C) Equal
(D) Zero
8. . For amplitude limiting of an IF amplifier the last stage is _________
(A) Class A
(B) Class B
(C) Class C
(D) Both b and c