CEA Electrical Theory & Fundamentals

Question 1

What is Ohm’s Law?

Accepted Answer

Voltage equals current times resistance

Answer

Current equals voltage divided by power

Answer

Resistance equals voltage times current

Answer

Power equals voltage minus current

Question 2

Which unit is used to measure electrical resistance?

Accepted Answer

Ohm

Answer

Ampere

Answer

Volt

Answer

Watt

Question 3

What does a capacitor do in an electrical circuit?

Accepted Answer

Stores electrical charge

Answer

Resists current flow

Answer

Increases voltage

Answer

Measures current

Question 4

What is the function of a transformer?

Accepted Answer

Changes voltage levels in AC

Answer

Converts AC to DC

Answer

Measures resistance

Answer

Stores electrical energy

Question 5

Which component opposes changes in current flow?

Accepted Answer

Inductor

Answer

Resistor

Answer

Capacitor

Answer

Transformer

Question 6

What type of current reverses direction periodically?

Accepted Answer

Alternating Current (AC)

Answer

Direct Current (DC)

Answer

Static Current

Answer

Continuous Current

Question 7

Which formula calculates electrical power?

Accepted Answer

Power = Voltage × Current

Answer

Power = Resistance ÷ Current

Answer

Power = Current − Voltage

Answer

Power = Voltage + Resistance

Question 8

What safety device protects a circuit from overload?

Accepted Answer

Circuit Breaker

Answer

Fuse

Answer

Resistor

Answer

Capacitor

Question 9

What is the unit of electrical current?

Accepted Answer

Ampere

Answer

Volt

Answer

Ohm

Answer

Watt