Electrical Supply Quiz

What is the typical amperage for a distributor's cut-out in a single-phase supply?

• 80 A or 100 A

• 50 A or 60 A

• 30 A or 40 A

• 10 A or 20 A

What is the typical size of the meter tails going from the meter to the consumer unit?

• 5 mm²

• 10 mm²

• 16 mm²

• 25 mm²

What is the purpose of circuit protective conductors?

• To supply water

• To supply gas

• To protect electrical circuits

• To measure electricity

What type of fuse is mentioned in the document?

• Cartridge fuse type BS 88

• Cartridge fuse type BS 90

• Cartridge fuse type BS 85

• Cartridge fuse type BS 80

What does 'cpc' stand for in the context of earth faults?

• Circuit Protective Conductor

• Central Power Circuit

• Current Power Cable

• Consumer Power Conductor

What does a short circuit bypass?

• The intended path.

• The battery.

• The light bulb.

• The switch.

What is the role of the Neutral Bar in a consumer unit?

• To return current to the power source

• To provide electricity

• To store energy

• To measure voltage

Which part of the consumer unit is labeled with numbers like B20 and B32?

• Miniature Circuit Breakers (MCB)

• Main Switch

• Neutral Bar

• Earth Bar

What is the purpose of a double pole isolator switch?

• To connect the supply to the distribution circuits

• To disconnect the supply to the distribution circuits

• To increase the electrical flow

• To decrease the electrical flow

What is protected by a miniature circuit breaker?

• The light bulbs

• The circuit

• The wires

• The switches