6 questions Basic

ECADEMY test

14 - Motors and motor protection

This course test contains 6 questions and can be retaken at any time.

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Question 1 of 6 Basic

Fill in the blank with the correct answer. Fitting protective devices in motors will help avoid [xxxxxxx].

Question 3 of 6 Basic

Which of the following causes slow temperature increase in the motor winding?

Question 5 of 6 Basic

Which formula will you use to calculate motor efficiency if the motor size is listed in hp?

Question 6 of 6 Basic

Which of the following things does a built-in protection device normally sense and protect against:

Question 6 of 6 Basic

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Correct
Q: Fill in the blank with the correct answer. Fitting protective devices in motors will help avoid [xxxxxxx].
A: Unexpected breakdown
Correct
Q: Which of the following statements is true about power consumed and the amount charged?
A: The amount of power that the power company charges is equal to the power consumed by the motor in all instances.
Correct
Q: Which of the following causes slow temperature increase in the motor winding?
A: Frequent starts with high inertia load
Correct
Q: Which of the following statements is true about pump protection devices?
A: Motor protection offers monitoring of the motor and protection.
Correct
Q: Which formula will you use to calculate motor efficiency if the motor size is listed in hp?
A: (P2× 0.746/P1) × 100%
Correct
Q: Which of the following things does a built-in protection device normally sense and protect against:
A: Temperature