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MCQ Questions Electrical Engineering Earthing or Grounding

- by Team_Engineers
Earthing or Grounding-4

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 - 4

Question 1: 

What is the diameter of the GI pipe through which the earth wire needs to be taken to?

  1. 13 mm diameter
  2. 15 mm diameter
  3. 19 mm diameter
  4. 6 mm diameter

Correct Answer – (A)

Question 2 : 

Third pin in a 3-pin plug is provided so as to

  1. Provide an earth connection
  2. Provide a 3-phase supply when required
  3. Provide a spare phase when required
  4. Prevent the plug being reversed in the socket

Correct Answer – (A)

Question 3 : 

Which type of neutral grounding method has high transient voltages appear under fault conditions?

  1. Solid grounding
  2. Resistance grounding
  3. Reactance grounding
  4. Plate grounding

Correct Answer – (C)

Question 4 : 

Mixture preferred for filling around the earth electrode for effective earthing is

  1. Paper-salt mixture
  2. Saw dust mixture
  3. Coal-salt mixture
  4. Lime-sand mixture

Correct Answer – (C)

Question 5 : 

The purpose of earthing electric appliances is

  1. To provide safety against shock
  2. To ensure that the appliances work properly
  3. To ensure that the appliances get full voltage
  4. None of the above

Correct Answer – (A)

MCQ Questions Electrical Engineering Earthing or Grounding

Question 6: 

Resistivity of earth increases sharply when moisture falls below

  1. 60%
  2. 40%
  3. 20%
  4. 10%

Correct Answer – (C)

Question 7: 

 In practice, earth is chosen as a place of zero electric potential because it

  1. is non-conducting
  2. is easily available reference
  3. keeps losing and gaining electric charge everyday
  4. has almost constant potential
 

Correct Answer – (D)

Question 8: 

The effect of electric shock on human body depends on:

  1. current
  2. voltage
  3. duration of contact
  1. only i
  2. only ii
  3. only iii
  4. all i, ii and iii

Correct Answer – (D)

Question 9: 

Normally the human body resistance in the totally wet and the dry condition is ____________ respectively.

  1. 1 kΩ and 1 MΩ
  2. 0.1 Ω and 10 kΩ
  3. 100 Ω and1 kΩ
  4. 100 Ω and 10 kΩ

Correct Answer – (A)

Question 10: 

The addition of ground rods in the earthing grid

  1. Decrease the earth resistance
  2. Has no effect on earth resistance
  3. Slightly decrease the earth resistance
  4. Slightly increase the earth resistance

Correct Answer – (C)

MCQ Questions Electrical Engineering Earthing or Grounding
Set 1
Set 2
Set 3
Set 4
Set 5

NCERT Solutions & Download NCERT Textbooks

MCQ Questions Electrical Engineering Parallel Circuits
Set 1
Set 2
Set 3
Set 4
Set 5

Multiple Choice Questions for Competitive Exams

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