Electrical Wiring System MCQ with Answers

Electrical Wiring System MCQ with Answers

21) How to attach the capping cover with casing (channel) after completion of wiring in PVC casing and capping system?

Answer is:

By sliding the capping through the grooves

22) Which is the disadvantage of PVC casing and capping wiring?

Answer is:

Inflammable and risk of fire

23) Which is the distance that the clips to be fixed on TW batten on horizontals run in the battern wiring?

Answer is:

10 cm

24) Which is the correct size of drill for making pilot holes for 6 mm diameter screw shank?

Answer is:

4 mm

25) What is the depth of pilot hole for fixing wood screw in soft wood?

Answer is:

Equal to 1/2 screw length