Preparing for the Joint Entrance Exam (JEE) can be a daunting task. With so many subjects to cover and so many topics to study, it can be challenging to know where to start. One essential topic in the JEE Mains syllabus is the Communication Systems. In this article, we will provide 50+ MCQ questions on the Communication Systems, along with detailed solutions to help you prepare for the JEE Mains exam.
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These 50+ MCQ questions are selected by the experts of studyrate.in and these are more difficult questions, which will help you to better understand Communication Systems JEE Mains MCQ Questions with Answers.
Communication Systems JEE Mains MCQ
In a communication system, the process of converting the message signal into a suitable form for transmission is called:
a) Modulation
b) Demodulation
c) Encoding
d) Decoding
The frequency range allocated for television broadcasting in India is:
a) 20 Hz – 20 kHz
b) 88 MHz – 108 MHz
c) 530 kHz – 1600 kHz
d) 9 kHz – 275 GHz
The signal-to-noise ratio (SNR) is a measure of:
a) Signal strength
b) Signal power
c) Signal quality
d) Signal frequency
In frequency modulation (FM), the amplitude of the carrier wave remains:
a) Constant
b) Modulated
c) Zero
d) Indeterminate
The phenomenon of mixing two signals to produce additional frequencies is called:
a) Modulation
b) Demodulation
c) Encoding
d) Mixing
The bandwidth required for frequency modulation (FM) is:
a) Narrower than amplitude modulation (AM)
b) Wider than amplitude modulation (AM)
c) Equal to amplitude modulation (AM)
d) Unrelated to amplitude modulation (AM)
In a communication system, the process of recovering the original message signal from the modulated signal is called:
a) Modulation
b) Demodulation
c) Encoding
d) Decoding
The process of converting an analog signal into a digital signal is called:
a) Modulation
b) Demodulation
c) Encoding
d) Decoding
The process of combining multiple signals into a composite signal for simultaneous transmission is called:
a) Modulation
b) Demodulation
c) Encoding
d) Multiplexing
The maximum frequency of the message signal that can be transmitted without distortion in a communication system is called:
a) Bandwidth
b) Carrier frequency
c) Cutoff frequency
d) Nyquist frequency
In amplitude modulation (AM), the amplitude of the carrier wave is:
a) Constant
b) Modulated
c) Zero
d) Indeterminate
The process of converting a digital signal into an analog signal is called:
a) Modulation
b) Demodulation
c) Encoding
d) Decoding
The process of converting a digital signal into a series of discrete voltage levels is called:
a) Modulation
b) Demodulation
c) Encoding
d) Decoding
In amplitude modulation (AM), the frequency of the carrier wave:
a) Changes with the message signal
b) Is independent of the message signal
c) Determines the bandwidth of the modulated signal
d) None of the above
The process of converting a series of discrete voltage levels into a digital signal is called:
a) Modulation
b) Demodulation
c) Encoding
d) Decoding
The minimum bandwidth required for frequency modulation (FM) is given by:
a) Carson’s rule
b) Shannon’s theorem
c) Nyquist’s theorem
d) Hartley’s theorem
The process of extracting information from a modulated signal is called:
a) Modulation
b) Demodulation
c) Encoding
d) Decoding
In frequency modulation (FM), the frequency deviation is proportional to:
a) Amplitude of the message signal
b) Frequency of the message signal
c) Phase of the message signal
d) Square of the message signal
The process of combining multiple channels into a single channel for transmission is called:
a) Modulation
b) Demodulation
c) Encoding
d) Multiplexing
The process of converting a continuous-time analog signal into a discrete-time digital signal is called:
a) Modulation
b) Demodulation
c) Sampling
d) Encoding
The bandwidth required for amplitude modulation (AM) is:
a) Narrower than frequency modulation (FM)
b) Wider than frequency modulation (FM)
c) Equal to frequency modulation (FM)
d) Unrelated to frequency modulation (FM)
The process of combining the modulated carrier wave with a local oscillator to recover the message signal is called:
a) Modulation
b) Demodulation
c) Encoding
d) Mixing
The process of converting a digital signal into an analog signal is called:
a) Modulation
b) Demodulation
c) Encoding
d) Decoding
The process of converting an analog signal into a digital signal by measuring the signal at regular intervals is called:
a) Modulation
b) Demodulation
c) Sampling
d) Encoding
The bandwidth of a signal is related to its:
a) Amplitude
b) Frequency
c) Phase
d) Power
The process of converting a digital signal into an analog signal using pulse shapes is called:
a) Modulation
b) Demodulation
c) Encoding
d) Pulse shaping
The process of converting a digital signal into an analog signal by varying the pulse width is called:
a) Amplitude modulation
b) Frequency modulation
c) Pulse width modulation
d) Phase modulation
The process of combining multiple signals into a composite signal for simultaneous transmission is called:
a) Modulation
b) Demodulation
c) Encoding
d) Multiplexing
The process of converting a digital signal into an analog signal by varying the phase of the carrier wave is called:
a) Amplitude modulation
b) Frequency modulation
c) Phase modulation
d) Pulse width modulation
The technique used to improve the signal-to-noise ratio (SNR) by transmitting multiple copies of the same signal with a time delay is called:
a) Amplitude modulation
b) Frequency modulation
c) Phase modulation
d) Diversity reception
We hope there JEE MCQ of Class 12 Communication Systems will help you to score an excellent rank in JEE Mains and Advanced. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students.
