Unit 105 True or False (Q1)

A one-way switch has three live terminals.

• True

• False

Answer explanation

It has two terminals

A lighting circuit is normally wired in 1.5mm² cable.

• True

• False

Answer explanation

Either 1mm2 or 1.5mm2

A ceiling rose connects fixed wiring to the flex.

• True

• False

Answer explanation

Flat twin CPC in, flex out

A two-way switch has terminals marked C1, C2 and L.

• True

• False

Answer explanation

False they are marked C, L1 and L2

Lighting outlets are connected in parallel.

• True

• False

Answer explanation

This provides the full voltage to each circuit

The conductors that connect two-way switches together are called strappers.

• True

• False

Answer explanation

They strap out between L1 and L2 on each switch

The bare CPC in twin + CPC cable when exposed should be covered in brown sleeving.

• True

• False

Answer explanation

This should be green and yellow sleeving

Control of lights on a stairway will require two-way switching.

• True

• False

Answer explanation

Required where a light is to be controlled from two positions

A 20A circuit breaker can protect a lighting circuit.

• True

• False

Answer explanation

6A or 10A is normal. 16A is the maximum with BC lampholders

A polarity test proves that the circuit breaker is in the neutral.

• True

• False

Answer explanation

The circuit breaker should be in the line