AET521 -Applications of Electrical Workshop Quiz 1

What is the standard voltage for residential electrical outlets in most countries?

• 110V

• 220V

• 240V

• 360V

Which of the following wires is typically used as the grounding wire in residential electrical systems?

• Red wire

• Blue wire

• Yellow wire

• Green wire

A circuit breaker is used to:

• Generate electricity

• Store electricity

• Control the flow of electricity

• Measure electricity consumption

What is the function of a ground fault circuit interrupter?

• To prevent overload

• To prevent short circuits

• To protect against electric shock

• To increase voltage

Which of the following is the unit of electrical power?

• Volt

• Ampere

• Ohm

• Watt

What is the purpose of a circuit overload?

• To increase the current

• To provide backup power

• To protect against overheating

• To reduce voltage

What is the standard frequency of alternating current (AC) in most residential electrical systems?

• 50 Hz

• 60 Hz

• 75 Hz

• 100 Hz

What is the purpose of a fuse in an electrical circuit?

• To regulate voltage

• To store electrical energy

• To interrupt the circuit in case of overload

• o increase current

Which type of electrical switch is commonly used for controlling a light from two different locations?

• Single-pole switch

• Three-way switch

• Dimmer switch

• Double-pole switch

In a three-pronged electrical plug, which prong is the ground?

• The longer and thicker prong

• The shorter left prong

• The shorter right prong

• Any prong can be the ground