Communication UGC NET MCQ. We covered all the Communication UGC NET MCQ in this post for free so that you can practice well for the exam.
Install our MCQTUBE Android app from the Google Play Store and prepare for any competitive government exams for free.
These types of competitive MCQs appear in the exams like SSC, Railways, Defence, CDS, NDA, State PSC & CSE Exams, etc. We created all the competitive exam MCQs into several small posts on our website for your convenience.
You will get their respective links in the related posts section provided below.
Related Posts:
- Computer Science MCQs Online Test
- Objective Questions of Computer Science
- Computer Science Quiz Questions with Answers Multiple Choice
MCQ on Communication for UGC NET Students
E.m.wave of audible frequency cannot be directly propagated over a long distance because
(a) they have to vary small energy content
(b) the length of the antenna required for the transmission of this wave is too large
(c) both (a) and (b)
(d) neither (a) nor (b)
Option c – both (a) and (b)
For transmission of e.m.wave of audible frequency, these waves are superimposed with waves of
(a) frequency less than 20 Hz
(b) frequency less than 10 kHz.
(c) frequency in the audible range.
(d) radio-frequency.
Option d – radio-frequency
Optical fiber is used for long-distance communication because
(a) it amplifies signals to be transmitted
(b) it transfers signals faster than electrical cables
(c) it pre-emphasizes weak signals
(d) it provides little attenuation as compared to electrical cable for light propagation
Option d – it provides little attenuation as compared to electrical cable for light propagation
Optical fibers transmit light along their axis, through the process of
(a) total internal reflection
(b) refraction
(c) interference
(d) diffraction
Option a – total internal reflection
A modem is a short form of
(a) modulator-demodulator
(b) multiplexer-demultiplexer
(c) multivibrator-degenerator
(d) None of these
Option a – modulator-demodulator
Which of the following AM scheme requires the minimum transmitted power & minimum channel bandwidth?
(a) VSB
(b) DSB-SC
(c) AM
(d) SSB
Option d – SSB
A buffer amplifier is used at the transmitting end to
(a) feed carrier frequency to the master oscillator
(b) amplify carrier frequency
(c) mix modulating signal with a carrier frequency
(d) isolate the master oscillator from other stages of the transmitter.
Option d – isolate the master oscillator from other stages of the transmitter
For transmission of speeches, talks, music, dramas, etc. is used
(a) radio broadcast transmitter
(b) radiotelegraph transmitter
(c) navigation transmitter
(d) None of these
Option a – radio broadcast transmitter
During the process of transmission & reception, the signal gets deteriorated due to
(a) noise introduced in the system
(b) distortion in the system
(c) both (a) & (b)
(d) neither (a) nor (b)
Option c – both (a) & (b)
A transducer used at the transmitting end serves the purpose of converting a
(a) electrical signal to sound form
(b) sound signal to electrical form
(c) electrical signal to magnetic form
(d) sound signal to magnetic form
Option b – sound signal to electrical form
Collation is a process of
(a) sorting at the transmitting end
(b) decoding at receiving end
(c) encoding at the transmitting end
(d) storing at receiving end
Option d – storing at receiving end
The purpose of a detector at the receiving end is
(a) to amplify the signal
(b) to reduce its frequency level
(c) to modulate the signal
(d) to demodulate the signal
Option d – to demodulate the signal
The loudspeaker is a transducer used at
(a) receiving end
(b) the transmitting end
(c) both (a) & (b)
(d) neither (a) nor (b)
Option a – receiving end
Reception of information involves
(a) decoding of signal
(b) storage of signal
(c) interpretation of signal
(d) all of the above
Option d – all of the above
The term channel is used to indicate
(a) the amplitude range allocated to a given source
(b) the frequency range allocated to a given source
(c) the voltage range allocated to a given source
(d) all of the above
Option b – the frequency range allocated to a given source
The science of communication involving long distances is known as
(a) mass communication
(b) distant communication
(c) tele- communication
(d) trans-communication
Option c – tele- communication
The part of the total message that is conveyed during communication is known as
(a) text
(b) electric signal
(c) bytes
(d) information.
Option d – information
During ground wave propagation the transmitted waves get attenuated because
(a) the earth’s surface absorbs the waves
(b) the frequency of the waves is too low
(c) the energy content of these waves is high
(d) the earth’s surface offers resistance.
Option d – the earth’s surface offers resistance
Long-range propagation is not possible by space wave propagation because
(a) the height of the troposphere is quite small
(b) the height of the troposphere is large
(c) the troposphere absorbs transmitted waves
(d) None of these.
Option a – the height of the troposphere is quite small
The wave reaching the receiving antenna will have maximum intensity if the direct wave & wave after reflection from the earth’s surface
(a) are out of phase by 90°
(b) are out of phase by 270°
(c) are in phase
(d) None of these.
Option a – are out of phase by 90°
For a radio wave reaching the ionized medium
(a) will bend away from normal
(b) will bend toward normal
(c) will bend to follow a straight path
(d) None of these.
Option a – will bend away from normal
Wave obtained on the superimposition of audible frequency e.m. wave is known as
(a) carrier wave
(b) high-frequency wave
(c) modulating wave
(d) modulated wave
Option d – modulated wave
Earth’s atmosphere is transparent for
(a) only the visible light
(b) only the X-rays
(c) only the y- rays
(d) visible light and microwaves.
Option d – visible light and microwaves
Ground wave propagation is possible for
(a) low radio frequency over a short range
(b) high radio frequency over a short range
(c) high radio frequency over a long range
(d) low radio frequency over a short range.
Option a – low radio frequency over a short range
We covered all the communication UGC net mcq above in this post for free so that you can practice well for the exam.
Check out the latest MCQ content by visiting our mcqtube website homepage.
Also, check out:
