Three-Phase Power Circuit Control Quiz

Three-Phase Power Circuit Control Quiz

Assessment

Interactive Video

Physics

10th - 12th Grade

Hard

Created by

Jennifer Brown

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the control transformer in the circuit?

To step down the high voltage to a lower control voltage

To increase the voltage for the motor

To provide backup power

To convert AC to DC

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first component added to the control circuit after the transformer?

A capacitor

A relay

A resistor

A fuse

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which button is normally closed in the control circuit?

Start button

Stop button

Power button

Reset button

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What color is the indicator light when the motor is stopped?

Yellow

Red

Blue

Green

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the red indicator light when the motor coil is energized?

It turns on

It blinks

It changes color

It turns off

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of a seal-in contact in the circuit?

To provide emergency stop

To allow the motor to run continuously without holding the start button

To increase the motor speed

To reduce power consumption

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the seal-in contact affect the start button?

It disconnects the start button

It is in parallel with the start button

It bypasses the start button

It keeps the start button pressed

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