MCQ Questions Electrical Engineering Modulation And Demodulation
Take a look at these MCQ Questions Electrical Engineering Modulation and Demodulation for engineering interview questions and our tips on how to answer them. If you’re applying for an engineering internship, graduate scheme or entry-level job, you’ll face at least one interview as part of an engineering employer’s recruitment process. You may be interviewed by one or more members of the HR team, senior members of the engineering team you’d be joining or a mixture of both. In this section we will study MCQ Questions Electrical Engineering Modulation and Demodulation.
As well as questions about your reasons for applying to the role and the employer in question, engineering recruiters will be assessing your potential in the areas that is crucial to any engineering role: technical expertise. Engineers may be asked to perform feats of fantastic technical prowess, but it will be as as part of a Justice League rather than as a solo engineering super hero.
The interviewer is almost as nervous as the candidate in most interviews. You might wonder if you look confident enough, if you will hire the right person, or if you are asking the right engineering interview questions. The last question is arguably the most crucial part to worry about when you’re interviewing candidates.
MCQ Questions Electrical Engineering Modulation and Demodulation - Set - 2
Question 1:
In amplitude modulation, the ___________ of carrier is varied according to the strength of the signal.
A. Amplitude
B. Frequency
C. Phase
D. None of the above
A. Amplitude
B. Frequency
C. Phase
D. None of the above
Correct Answer – (A)
Question 2 :
In amplitude modulation, bandwidth is ___________ the audio signal frequency
A. Thrice
B. Four times
C. Twice
D. None of the above
A. Thrice
B. Four times
C. Twice
D. None of the above
Correct Answer – (C)
Question 3 :
A high Q tuned circuit will permit an amplifier to have high ___________
A. Fidelity
B. Frequency range
C. Sensitivity
D. Selectivity
A. Fidelity
B. Frequency range
C. Sensitivity
D. Selectivity
Correct Answer – (D)
Question 4 :
Most of the amplification in a superhetrodyne receiver occurs at ___________ stage
A. IF
B. RF amplifier
C. Audio amplifier
D. Detector
A. IF
B. RF amplifier
C. Audio amplifier
D. Detector
Correct Answer – (A)
Question 5 :
In TV transmission, picture signal is ___________ modulated
A. Frequency
B. Phase
C. Amplitude
D. None of the above
A. Frequency
B. Phase
C. Amplitude
D. None of the above
Correct Answer – (C)
MCQ Questions Electrical Engineering Modulation and Demodulation
Question 6:
A 100 V carrier is made to vary between 160 V and 40 V by the signal. What is the modulation factor?
A. 3
B. 6
C. 5
D. None of the above
A. 3
B. 6
C. 5
D. None of the above
Correct Answer – (B)
Question 7:
If a radio receiver amplifies all the signal frequencies equally well, it is said to have high ___________
A. Sensitivity
B. Selectivity
C. Distortion
D. Fidelity
A. Sensitivity
B. Selectivity
C. Distortion
D. Fidelity
Correct Answer – (D)
Question 8:
he superhetrodyne principle provides selectivity at ___________ stage
A. RF
B. IF
C. audio
D. Before RF
A. RF
B. IF
C. audio
D. Before RF
Correct Answer – (B)
Question 9:
In TV transmission, sound signal is ___________ modulated
A. Amplitude
B. Frequency
C. Phase
D. None of the above
A. Amplitude
B. Frequency
C. Phase
D. None of the above
Correct Answer – (B)
Question 10:
Man made noise are ___________ variations.
A. Amplitude
B. Frequency
C. Phase
D. Both phase and frequency
A. Amplitude
B. Frequency
C. Phase
D. Both phase and frequency
Correct Answer – (A)
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