Understanding Electrical Machines and Safety

Which of the following is a type of AC machine?

• Shunt Motor

• Synchronous Motor

• Series Motor

• Compound Motor

What is the primary function of a commutator in a DC machine?

• To convert AC to DC

• To convert DC to AC

• To reverse the direction of current

• To increase voltage

Which component is used to store electrical energy in a circuit?

• Resistor

• Capacitor

• Inductor

• Diode

What is the main purpose of a fuse in an electrical circuit?

• To increase current

• To decrease voltage

• To protect the circuit from overcurrent

• To store energy

Which of the following is a type of DC machine?

• Induction Motor

• Synchronous Generator

• Series Motor

• Universal Motor

What is the unit of electrical resistance?

• Ampere

• Volt

• Ohm

• Watt

Which regulation ensures electrical safety in the workplace in Great Britain?

• OSHA

• HSE

• NEC

• IEEE

What is the formula for calculating electrical power in a circuit?

• P = IV

• P = I^2R

• P = V^2/R

• All of the above

Which of the following is a type of AC generator?

• Shunt Generator

• Alternator

• Series Generator

• Compound Generator

What is the role of an inductor in an electrical circuit?

• To store energy in a magnetic field

• To store energy in an electric field

• To convert AC to DC

• To increase resistance