COMMERCIAL WIRING - Practice Mode

1) What is the minimum bus bar clearance between phases in medium voltage application?

25 mm 32 mm 36 mm 40 mm

Correct Answer: 32 mm

2) What is the maximum permissible voltage drop at the point of the commencemert of supply at the consumers end for high and extra high voltage as per IE rule?

0.125 0.08 0.05 0.03

Correct Answer: 0.125

3) How the cable is to be connected with the distribution boards as per IE rule?

By crimping lugs without cutting any cable strands By crimping lugs with some strands cut of By directly inserting the strands into terminals By twisting the strands and inserting into terminals

Correct Answer: By crimping lugs without cutting any cable strands

4) Which is used to protect the conductors that passing through walls in commercial wiring as per IE rules?

Wood batten Rigid metal conduit Flexible metal conduit Flexible non metal conduit

Correct Answer: Rigid metal conduit

5) What is the full form ofLAN?

Load Area Network Local Area Network Local Aviation Network Local Active Network

Correct Answer: Local Area Network

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