Electricity

Subatomic particle with has negative electrical charge.

• neutron

• proton

• atom

• electron

What is the purpose of a circuit breaker in an electrical system?

• To increase resistance

• To regulate voltage

• to interrupt the flow of current

• To store electrical energy

What does the term "grounding" refer to in electrical systems?

• Connecting to the neutral wire

• Creating a closed circuit

• connecting to the earth electrode

• installing a lightning rod

Which type of wire is commonly used as a ground wire in electrical installations?

• Aluminum

• Copper

• Fiber optic

• PVC

In a three-phase electrical system, how many conductors are typically used?

• one

• two

• three

• four

What is the purpose of a multi-meter in electrical maintenance?

• To measure current

• to measure resistance

• to measure voltage

• all of the above

Which type of current flows in one direction only?

• AC (Alternating Current)

• DC (Direct Current)

• RF ( Radio Frequency)

• MC (Multi Current

In parallel circuit, how do voltages across each resistor compare?

• they are equal

• they add up

• they subtract from each other

• they vary randomly

What is the function of a transformer in an electrical system?

• to increase current

• to store energy

• to change voltage levels

• to regulate resistance

What is the purpose of a capacitor in an electrical circuit?

• to store electrical energy

• to control current flow

• to amplify signals

• to measure voltage