Automotive Electrical Quiz

What does a car battery primarily do?

• Power the starter motor

• Power the electrical components when the engine is off

• Charge the alternator

• Power the car’s lights

What is the unit of measurement for electrical current?

• Volt

• Ampere

• Ohm

• Watt

What does a fuse do in an automotive electrical system?

• Powers the electrical components

• Protects the circuit from overload

• Boosts the voltage

• Regulates current flow

What type of current does a car's electrical system use?

• Direct Current (DC)

• Alternating Current (AC)

• Both DC and AC

• None

What is the main purpose of the alternator?

• Start the engine

• Power the headlights

• Charge the car’s battery

• Control air conditioning

Which part of the car’s electrical system helps maintain the battery charge while driving?

• Battery

• Alternator

• Starter motor

• Voltage regulator

Which of the following is a common cause of a dead car battery?

• Faulty alternator

• Broken fuse

• High engine temperature

• Low engine oil

What does the term "ground" refer to in a car's electrical system?

• Positive voltage

• Negative voltage

• The battery's location

• A safety circuit

What type of wire is typically used for automotive wiring?

• Aluminum wire

• Copper wire

• Steel wire

• Silver wire

Which component is essential for turning the car’s engine over and starting it?

• Alternator

• Starter motor

• Fuse

• Relay