COMMERCIAL WIRING 2 - Practice Mode

1) Which location, the IC cut out is to be connected in service meter board?

Between main switch and distribution board Between energy meter and main switch First position of the service meter band Last position of the service board connection

Correct Answer: Between energy meter and main switch

Explanation:

Rupturing capacity of a circuit breaker means the maximum power a circuit breaker can interrupt under a fault. It is usually expressed in Mega volt Ampere (MVA) and it is then the product of the rated breaking current in kilo amperes and rated voltage expressed in kilo volts.

2) What is the minimum height of energy meter fixing as per NE code of practise and IE rules?

1 metre 1.5 metre 1.75 metre 2 metre

Correct Answer: 1 metre

3) Which tool is used to make holes for fixing meter board in walls during wiring?

Pipe jumper Rawl jumper Cold chisel Crow bar

Correct Answer: Rawl jumper

4) What is the use of Rawl jumper while fixing energy meter board on wall?

To make pilot hole on the wooden gutties To make holes on the bricks To mark the hole points on the wall To make grooves on the concrete

Correct Answer: To make holes on the bricks

5) Where the wooden gutties are used in wiring?

Wooden board Metal board Rigid walls Non-rigid walls

Correct Answer: Non-rigid walls

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