Electrical Principles 6035-02 | Revision

When pulling a plug from a socket, what is the last point of contact between plug and socket?

• The earth terminal

• The fuse

• The live terminal

• The neutral terminal

The domestic voltage is 230v, but what would be the low-voltage on a central heating system?

• 110v

• 24v

• 400v

• 240v

If a circuit was to overload, what would be the first to damage?

• The appliance

• The fuse

• The sleeve

• The insulation

1) Make sure it is ok to disconnect the supply.

2) Identify the source for the supply.

3) Go back to appliance and prove appliance is dead

4) Test the voltage indicator on a known source.

5) Switch off MCB/remove fuse, lock and label.

Select the correct sequence.

• 4, 2, 5, 3, 1, 4

• 1, 4, 5, 3, 2, 1

• 1, 2, 4, 5, 3, 4

• 2, 5, 4, 1, 3, 4

What is the component show?

• Manometer

• Multimeter

• Approved voltage indicator

• Continuity tester

When there is a problem with the circuit, what would your first action be?

• Isolate, rectify problem

• Inform customer, isolate

• Inform customer, rectify problem

• Identify, prove circuit is dead

What is the component circled?

• Incoming mains

• Consumer unit

• Meter

• Main earth bar

What is the component circled?

• Incoming mains

• Consumer unit

• Meter

• Main earth bar

If there is a major electrical problem in a domestic dwelling, what should be done?

• Isolate

• Inform the tenant

• Inform the supervisor

• Inform the local authority

If there is a major electrical problem in a un-occupied dwelling, what should be done?

• Isolate

• Inform the current tenant

• Inform the local authority

• Inform the property owner