Car Electrical Components Quiz

What is the primary function of a car battery?

• To fuel the engine

• To provide electrical power for starting the engine

• To cool the engine

• To reduce emissions

Which type of battery is most commonly used in modern cars?

• Nickel-metal hydride battery

• Lead-acid battery

• Lithium-ion battery

• Zinc-air battery

What is the main purpose of the alternator in a car's electrical system?

• To start the car

• To power the lights

• To charge the battery while the engine is running

• To provide power for the audio system

Which component is used to control the brightness of a car's interior lights?

• Alternator

• Battery

• Dimmer switch

• Fuse

What is the typical voltage of a car battery used in most passenger vehicles?

• 6 volts

• 12 volts

• 24 volts

• 48 volts

LED headlights are preferred over halogen headlights because they:

• Consume more power

• Have a shorter lifespan

• Emit brighter light with less power consumption

• Are easier to replace

What does a car's fuse box primarily protect?

• The car's paint

• The engine's oil levels

• Electrical circuits from overloading

• The tires from wearing out

Which of the following is NOT a function of a car's lighting system?

• Providing visibility at night

• Indicating the vehicle's position and direction to other drivers

• Enhancing the vehicle's audio system

• Ensuring the vehicle is visible in bad weather

In a car's lighting system, what is the purpose of the relay?

• To decrease the voltage to the lights

• To directly power the headlights

• To act as a secondary battery

• To control the power supplied to the lights

What happens if a car's battery is disconnected while the engine is running?

• The engine will stop immediately

• The car's lights will become brighter

• The radio will stop working

• The alternator may get damaged