Electrical Engineering Quiz

What is the primary function of a capacitor in a circuit?

• To measure current

• To increase voltage

• To store electrical energy

• To convert AC to DC

Which component is used to protect a circuit from excessive current?

• Capacitor

• Resistor

• Fuse

• Diode

What does AC stand for in electrical engineering?

• Active Current

• Analog Current

• Applied Current

• Alternating Current

Which device is used to convert electrical energy into mechanical energy?

• Motor

• Transformer

• Inductor

• Relay

What is the unit of resistance?

• Volt

• Ohm

• Watt

• Ampere

Which component allows current to flow in one direction only?

• Resistor

• Capacitor

• Diode

• Transistor

What is the purpose of a transformer?

• To store energy

• To change voltage levels

• To convert signals

• To measure current

What does the term 'impedance' refer to?

• Resistance to AC

• Voltage drop

• Current flow

• Power consumption

Which of the following is a type of digital signal?

• Triangle wave

• Square wave

• Sawtooth wave

• Sine wave

What is the primary role of a microcontroller?

• To amplify signals

• To control devices

• To store energy

• To measure voltage