Calculated Multiple-Choice Questions

Calculated Multiple-Choice Questions

12th Grade

15 Qs

quiz-placeholder

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Calculated Multiple-Choice Questions

Calculated Multiple-Choice Questions

Assessment

Quiz

Specialty

12th Grade

Practice Problem

Hard

Created by

Andgel Thomas

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A three-phase motor has 6 poles and operates at 50 Hz. Calculate the synchronous speed. Show all steps in your calculation.

1000 RPM

1200 RPM

1500 RPM

1800 RPM

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the synchronous speed of a 50 Hz motor is 1500 RPM and the rotor speed is 1470 RPM, calculate the percentage slip. Show your working for the slip formula.

1.33%

2.00%

2.33%

3.00%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A 4-pole motor operates at 60 Hz. Calculate the synchronous speed and show the formula you used. Provide all steps in your calculation.

1200 RPM

1500 RPM

1800 RPM

2400 RPM

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A motor running at 96% of its synchronous speed has a synchronous speed of 1200 RPM. Calculate the rotor speed. Show your calculations step-by-step.

1152 RPM

1160 RPM

1175 RPM

1180 RPM

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a 50 Hz motor has 8 poles, calculate its synchronous speed. Show all working steps.

500 RPM

750 RPM

1000 RPM

1250 RPM

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A 6-pole motor operates at 60 Hz. The rotor speed is 1150 RPM. Calculate the synchronous speed and the percentage slip. Provide all working steps for both the synchronous speed and slip calculations.

4.17%

4.44%

5.00%

5.50%

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A motor has a slip of 3% and a synchronous speed of 1800 RPM. Calculate the rotor speed. Show all steps in your calculation.

1650 RPM

1700 RPM

1740 RPM

1760 RPM

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