Channel MCQ’s

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

1. Sin wave is ________
a) Aperiodic Signal
b) Periodic Signal
c) Random Signal
d) Deterministic Signal

2. What is the role of channel in communication system?
a) acts as a medium to send message signals from transmitter to receiver
b) converts one form of signal to other
c) allows mixing of signals
d) helps to extract original signal from incoming signal

3. Notch is a ________
a) High pass filter
b) Low pass filter
c) Band stop filter
d) Band pass filter

4. Sum of a periodic and aperiodic signal always be an aperiodic signal.
a) True
b) False

5. Agreement between communication devices are called ________
a) Transmission medium
b) Channel
c) Protocol
d) Modem

6. Low frequency noise is ________
a) Flicker noise
b) Shot noise
c) Thermal noise
d) Partition Noise

7. Noise is added to a signal ________
a) In the channel
b) At receiving antenna
c) At transmitting antenna
d) During regeneration of information

8. What is the advantage of superheterodyning?
a) High selectivity and sensitivity
b) Low Bandwidth
c) Low adjacent channel rejection
d) Low fidelity

9. Relationship between amplitude and frequency is represented by ________
a) Time-domain plot
b) Phase-domain plot
c) Frequency-domain plot
d) Amplitude-domain plot

10. A function f(x) is even, when?
a) f(x) = -f(x)
b) f(x) = f(-x)
c) f(x) = -f(x)f(-x)
d) f(x) = f(x)f(-x)

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