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Electronics Mechanic Practice Test: Communication Electronics
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Related: Electronics Mechanic Practice Test: Electrical Control Circuits 

Electronics Mechanic Practice Test: Communication Electronics
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25 Questions

1. The length of a transmitting antenna is kept proportional to the ________
2. AM broadcast contains ________
3. What is the range of frequency for Medium Wave propagation in AM broadcasting?
4. Directional characteristic of a loop antenna is of the shape of _________
5. What is the range of frequency for short wave (SW) band?
6. Which antenna is used for Medium Wave band in AM receiver?
7. In which frequency range a Marconi antenna can be used conveniently_____
8. The feeder used with a broadcasting transmitter is of __________
9. What is the function of capacitor (C) in the envelope detector circuit?
10. The angle of radiation decreases with … in the height of an antenna________
11. Which modulation method is used in binary phase shift keying applications?
12. The resistance when substituted for an antenna, would consume as much power as the antenna radiates is called__________
13. The height of a Marconi antenna is kept equal to __________
14. Telescopic antenna is used with a _________
15. Maximum permitted channel width for AM broadcasting is __________
16. Which instrument is necessary to align the FM detector in receiver circuit?
17. A TV antenna consists of ___________
18. What is fidelity of receiver circuit?
19. What is the function of analog multiplier IC AD 633?
20. What is the speed of light?
21. What is the expansion of AFC?
22. Which type of modulation uses the signal superimposed over the carrier waves?
23. Which circuit is used to process the demodulation of Amplitude modulated signal?
24. Radiation is a process of converting
25. The signal strength of an electromagnetic wave is ___________

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