MCQ Questions Electrical Engineering Earthing or Grounding

Take a look at these MCQ Questions Electrical Engineering Earthing or Grounding 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 Earthing or Grounding.

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 Earthing or Grounding - Set - 1

Question 1:

Ground resistance should be designed such that
a) grounding resistance should be as low as possible
b) grounding resistance should be as high as possible
c) grounding resistance should be always zero
d) none of the above

Check Answer

Correct Answer – (A)

Question 2 :

Average resistance of human body is
a) 500 ohms
b) 1000 ohms
c) 1500 ohms
d) 2000 ohms

Check Answer

Correct Answer – (B)

Question 3 :

The size of the earth or ground wire is based on the
a) maximum fault current carrying through the ground wire
b) rated current carrying capacity of the service line
c) depends on the soil resistance
d) both (a) and (c)

Check Answer

Correct Answer – (A)

Question 4 :

Ground resistance should be designed such that

A. grounding resistance should be as low as possible
B. grounding resistance should be as high as possible
C. grounding resistance should be always zero
D. none of the above

Check Answer

Correct Answer – (D)

Question 5 :

Moisture content in the soil _______ the earth soil resistance

A. increase
B. decrease
C. does not affect
D. none of the above

Check Answer

Correct Answer – (B)

MCQ Questions Electrical Engineering Earthing or Grounding

Question 6:

Generally grounding is provided for
a) only for the safety of the equipment
b) only for the safety of the operating personnel
c) both (a) and (b)
d) none of the above

Check Answer

Correct Answer – (C)

Question 7:

Earth wire or ground wire is made of
a) copper
b) aluminium
c) iron
d) galvanized steel

Check Answer

Correct Answer – (D)

Question 8:

For an EHV equipment for maintenance first it should be isolated and connected to ground because

A. to provide low impedance
B. to discharge the charging capacitance to ground
C. protection for operating personnel
D. both (B) and (C)

Check Answer

Correct Answer – (D)

Question 9:

Generally grounding is provided for

A. only for the safety of the equipment
B. only for the safety of the operating personnel
C. both (A) and (B)
D. none of the above

Check Answer

Correct Answer – (C)

Question 10:

When the 3-phase system is not grounded and if Single Line to Ground fault occurs, the voltage of the other two healthy phases will

A. Increases
B. Decreases
C. Remains unaffected
D. none of the above

Check Answer

Correct Answer – (A)

MCQ Questions Electrical Engineering Earthing or Grounding

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