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 - 1

Question 1:

In a Zener voltage regulator, the changes in load current produce changes in ___________

A. Zener current
B. Zener voltage
C. Zener voltage as well as Zener current
D. None of the above

Check Answer

Correct Answer – (A)

Question 2 :

A Zener voltage regulator is used for ___________ load currents

A. High
B. Very high
C. Moderate
D. Small

Check Answer

Correct Answer – (D)

Question 3 :

If the load current drawn by unregulated power supply increases, the d.c. output voltage ___________

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

Check Answer

Correct Answer – (B)

Question 4 :

Zener diode are generally made of ___________

A. Germanium
B. Silicon
C. Carbon
D. None of the above

Check Answer

Correct Answer – (B)

Question 5 :

If the load resistance decreases in a Zener regulator, then Zener current ___________

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

Check Answer

Correct Answer – (A)

MCQ Questions Electrical Engineering Regulated DC Power Supply

Question 6:

A Zener diode that has very narrow depletion layer will breakdown by mechanism

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

Check Answer

Correct Answer – (B)

Question 7:

A 30 V Zener will have depletion layer width ___________ that of 10 V Zener

A. More than
B. Less than
C. Equal to
D. None of the above

Check Answer

Correct Answer – (A)

Question 8:

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

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

Check Answer

Correct Answer – (B)

Question 9:

A Zener regulator ___________ in the power supply

A. Increases the ripple
B. Decreases the ripple
C. Neither increases nor decreases the ripple
D. Data insufficient

Check Answer

Correct Answer – (B)

Question 10:

A Zener voltage regulator will cease to act as a voltage regulator if Zener current becomes ___________

A. Less than load current
B. Zero
C. More than load current
D. None of the above

Check Answer

Correct Answer – (B)

MCQ Questions Electrical Engineering Regulated DC Power Supply

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