MCQ Questions Electrical Engineering Regulated DC Power Supply

Take a look at these MCQ Questions Electrical Engineering Regulated DC Power Supply 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 Regulated DC Power Supply.

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 Regulated DC Power Supply - Set - 4

Question 1:

A power supply which has voltage regulation of ……….. is unregulated power supply

0 %
5 %
10 %
8%

Check Answer

Correct Answer – (C)

Question 2 :

In an unregulated power supply, if load current increases, the output voltage ………..

Remains the same
Decreases
Increases
None of the above

Check Answer

Correct Answer – (B)

Question 3 :

A certain regulator has a no-load voltage of 6 V and a full-load output of 5.82 V. What is the load regulation?

A. 3.09
B. 2.87
C. 5.72
D. None of the above

Check Answer

Correct Answer – (A)

Question 4 :

In a loaded Zener regulator, which is the largest Zener current?

A. Series current
B. Zener current
C. Load current
D. None of the above

Check Answer

Correct Answer – (A)

Question 5 :

In a 15 V Zener diode , the breakdown mechanism will occur by ___________

A. Avalanche mechanism
B. Zener mechanism
C. Both Zener and avalanche mechanism
D. None of the above

Check Answer

Correct Answer – (A)

MCQ Questions Electrical Engineering Regulated DC Power Supply

Question 6:

In an unregulated power supply, if input a.c. voltage increases, the output voltage …….

Increases
Decreases
Remains the same
None of the above

Check Answer

Correct Answer – (A)

Question 7:

In an unregulated power supply, if input a.c. voltage increases, the output voltage .

A. Increases
B. Decreases
C. Remains the same
D. None of the above

Check Answer

Correct Answer – (A)

Question 8:

A power supply can deliver a maximum rated current of 0.5 A at full-load output voltage of 20 V. What is the minimum load resistance that you can connect across the supply?

A. 10 Ω
B. 20 Ω
C. 15 Ω
D. 40 Ω

Check Answer

Correct Answer – (D)

Question 9:

A Zener diode utilises ___________ characteristic for voltage regulation

A. Forward
B. Reverse
C. Both forward and reverse
D. None of the above

Check Answer

Correct Answer – (B)

Question 10:

Which of these is the best description for a Zener diode?

A. It is a diode
B. It is a constant current device
C. It is a constant-voltage device
D. It works in the forward region

Check Answer

Correct Answer – (C)

MCQ Questions Electrical Engineering Regulated DC Power Supply

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