Chapter 4: Building Electricity (i)

Ampere (A) is one of basic units electrical energy and it is refer as :

• Unit of electrical billing by TNB

• Unit of electrical power or consumption of electrical power

• Measure of electrical force

• Unit to measure electricity flow

___________ measures the electrical energy that is used in the house.

• ELCB circuit breaker

• Main switch

• MCB circuit breaker

• Electric meter

The voltage of the alternating current is highest at the

• branch substation

• power station

• National Grid Network

_______ carries electric current to an electrical appliances.

• Earth wire

• Live wire

• Neutral wire

Volt (V) is one of basic units electrical energy and it is refer as :

• Unit of electrical billing by TNB

• Unit of electrical power or consumption of electrical power

• Measure of electrical force

• Unit to measure electricity flow

Choose the step-up transformer

• A

• B

• C

_______ returns electric current to the branch substation.

• Neutral wire

• Live wire

• Earth wire

_______ connects an electrical appliances directly to the Earth.

• Neutral wire

• Live wire

• Earth wire

___________ disconnects the current supply temporarily when it is not needed (such as during repairing damaged wiring).

• ELCB circuit breaker

• Main switch

• Electric meter

• MCB circuit breaker

___________ cuts off the current supply in the house when excessive current flows through it.

• Main switch

• ELCB circuit breaker

• Electric meter

• MCB circuit breaker