Motor Drive Connection Components Quiz

What component is used to protect a motor from overheating?

• Contactor
• Fuse
• Switch
• Thermal relay

Which device can be reset after tripping due to a high current?

• Fuse
• Circuit breaker
• Contactor
• Switch

What is the function of a fuse in a motor circuit?

• To start the motor
• To stop the motor
• To protect against short circuits
• To control motor speed

Which component is used to manually isolate the power supply to a motor?

• Push button
• Cam switch
• Isolation switch
• Fuse

What does a contactor use to operate?

• Mechanical force
• Hydraulic pressure
• Electromagnetic effect
• Pneumatic pressure

What type of switch is used to initiate motor start and stop?

• Isolation switch
• Push button switch
• Cam switch
• Thermal relay

Which of the following is a simple mechanical component used in motor control circuits?

• Contactor
• Thermal relay
• Switch
• Circuit breaker

What is the main purpose of an interlock system?

• To start the motor
• To prevent harm to operators
• To control motor speed
• To measure current

What happens when a fuse melts in a motor circuit?

• The motor starts
• The motor stops
• The circuit remains closed
• The circuit opens

Which component can be used to switch motors up to several hundred kW?

• Fuse
• Push button switch
• Contactor
• Thermal relay