House Wiring

What is the standard voltage supply for household wiring in most countries?

• 110-120 volts

• 220-240 volts

• 50-60 volts

• 12-24 volts

Which material is commonly used for electrical wiring in homes due to its conductivity?

• Iron

• Copper

• Aluminum

• Steel

What is the purpose of a circuit breaker in house wiring?

• To increase voltage

• To prevent overloading

• To reduce current

• To store electricity

In house wiring, what color is typically used for the live wire?

• Red

• Black

• Green

• White

What is the function of an earth wire in household electrical systems?

• To provide a return path for current

• To prevent electric shock

• To increase voltage

• To reduce resistance

Which of the following is a safety device used in house wiring to prevent electrical fires?

• Transformer

• Fuse

• Resistor

• Capacitor

What is the unit of electrical resistance, which is important in house wiring?

• Volt

• Ampere

• Ohm

• Watt

In a typical household circuit, what is the role of a neutral wire?

• To carry current to appliances

• To carry current away from appliances

• To provide grounding

• To increase voltage

What is the main advantage of using a ring circuit in house wiring?

• Reduces voltage drop

• Increases current

• Simplifies installation

• Reduces cost

Which type of wiring system is most commonly used in modern homes?

• Conduit wiring

• Cleat wiring

• Casing and capping wiring

• Batten wiring