REVIEW QUIZ- SET 3- ELC 302

1. What is the primary function of a motor controller?

• Increase motor torque

• Protect the motor from overload

• Control motor speed only

• Cool the motor during operation

Which device protects motors from excessive current?

• Contactor

• Fuse

• Push button

• Timer

What component opens or closes the circuit to start or stop the motor?

• Overload relay

• Contactor

• Resistor

• Transformer

What does the term “lockout/tagout” refer to?

• Turning off the lights

• Securing machines with padlocks and tags during maintenance

• Operating multiple motors simultaneously

• Restarting a motor

A thermal overload relay works based on:

• Voltage

• Resistance

• Heat

• Magnetism

The NEMA standard refers to:

• National Electric Maintenance Act

• National Electrical Manufacturers Association

• Network Emergency Management Agency

• None of the above

The emergency stop button must be:

• Green

• Blue

• Red

• Yellow

Which of the following is NOT a component of a DOL starter?

• Contactor

• Overload relay

• Variable frequency drive

• Start/stop push buttons

Which motor starter is best suited for limiting inrush current?

• DOL

• Star-delta

• Soft starter

• Manual switch

Which device automatically switches off the motor when overload occurs?

• Contactor

• Fuse

• Overload relay

• Circuit breaker