Electrical Level 2

The installation of electrical appliances in domestic property is covered by which BS No?

• BS EN 806

• BS 1812

• BS 12056

• BS 7671

Domestic electrical appliances would be powered by-

• 230V AC

• 230V DC

• 110V AC

• 110V DC

An earthing electrode would be used to direct current to earth in which type of system?

• TCT-S

• TT

• TN-S

• TN-C-S

What size is the main earth equipotential bonding?

• 6mm

• 10mm

• 16mm

• 25mm

Which overcurrent protection device is shown here?

• MCB

• RCBO

• RCD

• Cartridge fuse

A cable passing through a metal back box is protected by-

• Group 4

• Hasp & Staple

• Nylon backing ring

• Rubber grommet

Which type of protection is used to protect the pipework under the boiler, as in the image shown here?

• Main earth bonding conductor

• Supplementary bonding

• Cross bonding

• Equipotential bonding

What is the likely result of the current in a cable exceeding its current capacity?

• Damage to the insulation

• Lights dimming

• Intermittent fault

• Lightbulbs blowing

What is this?

• A switched fused spur with neon indicator

• Remote light switch

• Warning light

• A switched fused spur

CPD (circuit protection devices) ratings are measured by what?

• Ohms

• Volts

• Amps

• Watts