MCQs in Radio Receivers – Answers

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(Last Updated On: December 8, 2017)

Answers in Radio Receivers

Below are the answers key for Multiple Choice Questions in Chapter 6: Radio Receivers from the book Electronic Communication Systems by George Kennedy. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

1. c. Greater limiting

2. a. The circuit is always biased in class C, by virtue of the leak-type bias.

3. a. an increase in signal strength produces more AGC

4. b. mixer input must be tuned to the signal frequency

5. b. variable sensitivity

6. d. 2100 kHz

7. a. the linearity is worse than in phase discriminator

8. a. an audio amplifier when the carrier is absent

9. d. Variable sensitivity is used to eliminate selective fading

10. d. it is relatively free of spurious frequency

11. a. reduce the spurious frequency problem

12. d. Phase discriminator

13. b. reducing the effect of negative-peak clipping

14. b. insufficient gain and sensitivity

15. c. is not rejected be the IF tuned circuits

16. d. improve the rejection of the image frequency

17. a. blocking

18. b. the padder capacitor

19. d. to allow adequate frequency coverage without switching

20. d. tracking will be improved

21. c. negative-peak clipping

22. c. Bipolar transistor balanced modulator

23. b. adjacent-channel rejection is more difficult

24. c. it is unaffected by AGC derived from nearby transmissions

25. d. Single-sideband, full-carrier

Complete List of MCQs in Electronic Communication Systems by Kennedy

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