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 - 3

Question 1:

For the measurement of the earth resistance of a given earth electrode

collecting electrode should be very near to the electrode under test
collecting electrode should touch the electrode under test
collecting electrode should be far way the electrode under test
none of these

Check Answer

Correct Answer – (C)

Question 2 :

Inside the earth pit, the earthing electrode should be placed

Vertical
Horizontal
Inclined at 45°
Inclined at any angle other than 45°

Check Answer

Correct Answer – (A)

Question 3 :

The earthing electrodes should be placed within what distance in meters from the building whose installation system is being earthed

Check Answer

Correct Answer – (C)

Question 4 :

The earth’s potential is taken as

Infinite
Supply voltage
1 volt
Zero

Check Answer

Correct Answer – (D)

Question 5 :

Earth resistance comprises of

Resistance of soil away from electrode.
Contact resistance between electrode and soil.
Resistance of metal electrode

1 only
1 and 2 only
1 and 3 only
1 ,2 and 3 together

Check Answer

Correct Answer – (D)

MCQ Questions Electrical Engineering Earthing or Grounding

Question 6:

The acceptable value of grounding resistance to a domestic application is

0.1 Ω
1 Ω
10 Ω
100 Ω

Check Answer

Correct Answer – (B)

Question 7:

The purpose of earthing electric appliances is

To provide safety against shock
To ensure that the appliance saves current
To ensure that the appliance gets full voltage
None of these

Check Answer

Correct Answer – (C)

Question 8:

For reducing tower footing resistance, it is better to use

Chemical and ground rod only
Chemical and counterpoise only
Ground rod and counterpoise only
None of these

Check Answer

Correct Answer – (c)

Question 9:

Humans are more vulnerable to electric shock current at?

50 Hz
48 Hz
40 Hz
45 Hz

Check Answer

Correct Answer – (A)

Question 10:

In house wiring, black and green wires indicate

Earth and neutral respectively
Phase and neutral respectively
Phase and earth respectively
Neutral and earth respectively

Check Answer

Correct Answer – (D)

MCQ Questions Electrical Engineering Earthing or Grounding

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