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 - 1
Question 1:
If modulation is 100% then signal amplitude is ___________ carrier amplitude
A. Equal to
B. Greater than
C. Less than
D. None of the above
A. Equal to
B. Greater than
C. Less than
D. None of the above
Correct Answer – (A)
Question 2 :
If level of modulation is increased ___________ power is increased
A. Carrier
B. Sideband
C. Carrier as well as sideband
D. None of the above
A. Carrier
B. Sideband
C. Carrier as well as sideband
D. None of the above
Correct Answer – (B)
Question 3 :
At 100% modulation, the power in each sideband is ___________ of that of carrier
A. 50%
B. 40%
C. 60%
D. 25%
A. 50%
B. 40%
C. 60%
D. 25%
Correct Answer – (D)
Question 4 :
In the above question, what is the power in sidebands?
A. 8 kW
B. 6 kW
C. 06 kW
D. 9 kW
A. 8 kW
B. 6 kW
C. 06 kW
D. 9 kW
Correct Answer – (C)
Question 5 :
Modulation is done in ___________
A. Transmitter
B. Radio receiver
C. Between transmitter and radio receiver
D. None of the above
A. Transmitter
B. Radio receiver
C. Between transmitter and radio receiver
D. None of the above
Correct Answer – (A)
MCQ Questions Electrical Engineering Modulation and Demodulation
Question 6:
Overmodulation (amplitude) occurs when signal amplitude is ___________ carrier amplitude
A. Equal to
B. Greater than
C. Less than
D. None of the above
A. Equal to
B. Greater than
C. Less than
D. None of the above
Correct Answer – (B)
Question 7:
In a transmitter ___________ oscillator is used
A. Hartley
B. RC phase-shift
C. Wien-bridge
D. Crystal
A. Hartley
B. RC phase-shift
C. Wien-bridge
D. Crystal
Correct Answer – (D)
Question 8:
Superhertodyne principle refers to
A. Using a large number of amplifier stages
B. Using a push-pull circuit
C. Obtaining lower fixed intermediate frequency
D. None of the above
A. Using a large number of amplifier stages
B. Using a push-pull circuit
C. Obtaining lower fixed intermediate frequency
D. None of the above
Correct Answer – (C)
Question 9:
Demodulation is done in ___________
A. Receiving antenna
B. Transmitter
C. Radio receiver
D. Transmitting antenna
A. Receiving antenna
B. Transmitter
C. Radio receiver
D. Transmitting antenna
Correct Answer – (C)
Question 10:
In a superhetrodyne receiver, the difference frequency is chosen as the IF rather than the sum frequency because ___________
A. The difference frequency is closer to oscillator frequency
B. Lower frequencies are easier to amplify
C. Only the difference frequency can be modulated
D. None of the above
A. The difference frequency is closer to oscillator frequency
B. Lower frequencies are easier to amplify
C. Only the difference frequency can be modulated
D. None of the above
Correct Answer – (B)
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