Frequency Discrimination Method MCQ’s

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This set of Analog Communication Multiple Choice Questions & Answers (MCQs) focuses on “Frequency Discrimination Method”.

1. FM transmitting and receiving equipment is __________ as compared to AM equipment.
a) costly
b) cheaper
c) same price
d) not available

2. Which one of the following is analog?
a) PCM
b) PWM
c) Delta modulation
d) Differential PCM

3. FM and PM are two ways of angle modulation.
a) True
b) False

4. Schmitt trigger is used to generate PDM.
a) True
b) False

5. In case of FM, if the modulating frequency is lowered and the modulating voltage remains constant then the amplitude of distant sidebands decreases.
a) True
b) False

6. Leak type bias is used in plate modulated amplifier to prevent tuned circuit damping.
a) True
b) False

7. Which of the following is used to generate PDM?
a) Monostable multi-vibrator
b) Bistable Multivibrator
c) Either monostable of free running multi-vibrator
d) Astable Multivibrator

8. Skip distance depends on the time of day and angle of incidence.
a) True
b) False

9. For telegraphy pulse code modulation (PCM) is widely used.
a) True
b) False

10. DVD uses a laser beam for recording and video head for playback.
a) True
b) False

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