Electrical Wiring MCQ

21. What is the maximum distance between the two successive cleats?

  1. 0.25 m
  2. 0.6 m
  3. 0.9 m
  4. 1.25 m
Answer
Answer. b

22. Which among these is a type of batten wiring?

  1. Using metal-sheathed wiring
  2. Using TRS or PVC wires
  1. Only 1
  2. Only 2
  3. Both 1 and 2
  4. None of these
Answer
Answer. c

23. Which among these is a type of batten wiring?

  1. Metal sheathed wiring
  2. TRS or PVC wires
  3. Both metal-sheathed wiring and TRS or PVC wires
  4. None of these
Answer
Answer. c

24. Which among these is a type of internal wiring?

  1. Cleat wiring
  2. Conduit wiring
  3. CTS wiring
  1. only i
  2. only ii
  3. both ii and iii
  4. i, ii and iii
Answer
Answer. d

25. _________ should be provided as the working space of the main switchboard according to Indian electricity rule 51

  1. 0.914 m
  2. 0.523 m
  3. 0.638 m
  4. 0.814 m
Answer
Answer. a

26. Which set of rules are to be verified on the completion of wiring on any new installation?

  1. Indian electricity rules,1950
  2. Indian electricity rules, 1956
  3. Indian electricity rules,1960
  4. None of these
Answer
Answer. b

27. What is the factor of safety used for current ratings in a power installation?

  1. 1
  2. 1.5
  3. 1.75
  4. 2
Answer
Answer. d

28. What is the maximum length of the flexible conduit in the motor installation?

  1. Less than 1.25 m
  2. Less than 2.25 m
  3. Less than 3.5 m
  4. Can exceed not more than 5 m
Answer
Answer. a

29. What is the maximum load that can be connected in a circuit connecting only lighting points?

  1. 500 Watts
  2. 750 Watts
  3. 800 Watts
  4. 1000 Watts
Answer
Answer. c

30. Which material is used for wiring continuous bus bar?

  1. Aluminium
  2. Copper
  1. only i
  2. only ii
  3. both i & ii
  4. none of these
Answer
Answer. a
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