Automotive Electrical Systems Quiz

What is the primary function of a vehicle's voltage regulator?

• Increase battery voltage

• Maintain a constant voltage level

• Convert AC to DC

• Control ignition timing

Which component stores electrical energy in a vehicle's circuit?

• Resistor

• Capacitor

• Inductor

• Diode

Ohm's Law is represented by which formula?

• V = I × R

• P = V × I

• I = V × R

• R = V × P

What does an oscilloscope measure in automotive diagnostics?

• Fuel pressure

• Electrical waveforms

• Engine temperature

• Oil viscosity

In a digital communication system, what does CAN stand for?

• Central Automotive Network

• Controller Area Network

• Car Automation Node

• Control Access Network

Which unit measures electrical resistance?

• Ampere

• Volt

• Ohm

• Watt

What is the typical voltage of a fully charged automotive battery?

• 12.0 volts

• 12.6 volts

• 13.2 volts

• 14.0 volts

Which component allows current to flow in only one direction?

• Resistor

• Capacitor

• Diode

• Transistor

What is the main purpose of the alternator in a vehicle?

• Start the engine

• Charge the battery and power electrical systems

• Control ignition timing

• Regulate fuel injection

Which system uses a stepper motor for operation?

• Power steering

• Electric windows

• Idle speed control

• Air conditioning compressor