Electrical Circuits Quiz

Which type of circuit is used for lighting in most residential buildings?

• Radial circuit

• Ring circuit

• Series circuit

• Parallel circuit

Which wiring system is commonly used in modern residential lighting circuits?

• Steel conduit

• PVC conduit

• Rubber cable

• Twin and earth cable

What is the minimum size of cable typically used for lighting circuits in the UK?

• 1.5mm²

• 2.5mm²

• 4mm²

• 6mm²

Which type of switch is commonly used to control lighting circuits in UK homes?

• Toggle switch

• Dimmer switch

• Rocker switch

• Push-button switch

What is the maximum allowable load for a lighting circuit protected by a 6A fuse?

• 1,200W

• 1,800W

• 2,400W

• 3,000W

Which colour is typically used for the live wire in a lighting circuit?

• Blue

• Brown

• Green/Yellow

Which protective device is commonly used to protect lighting circuits from short circuits and overcurrents?

• Circuit breaker

• Residual current device

• Fuse

• Surge protector

What is the purpose of an earth wire in a lighting circuit?

• To carry current to the light fitting

• To protect against electric shocks

• To control the brightness of the lights

• To provide a backup power source

Which type of lighting circuit is typically used in commercial buildings?

• Radial circuit

• Ring circuit

• Series circuit

• Parallel circuit

What is the recommended height for installing ceiling light fittings in a residential building?

• 2 meters

• 2.5 meters

• 3 meters

• 3.5 meters