The slots located in the inner diameter of a stator have:
Which of the following statements is true about pump protection devices?
Which of the following causes slow temperature increase in the motor winding?
Fill in the blank with the correct answer. Fitting protective devices in motors will help avoid [xxxxxxx].
Which of the following things does a built-in protection device normally sense and protect against:
Which formula will you use to calculate motor efficiency if the motor size is listed in hp?
Test results
Congratulations. You have passed the test and completed the 14 - Motors and motor protection
Achieved badges:
Q: The slots located in the inner diameter of a stator have:
A: Copper wires
Q: The slots located in the inner diameter of a stator have:
A: Copper bars
Q: The slots located in the inner diameter of a stator have:
A: Aluminum bars
Q: Which of the following statements is true about pump protection devices?
A: Motor protection offers monitoring of the motor and protection.
Q: Which of the following statements is true about pump protection devices?
A: Motor protection offers only protection.
Q: Which of the following statements is true about pump protection devices?
A: Motor protection offers only monitoring for identifying probable risks.
Q: Which of the following causes slow temperature increase in the motor winding?
A: Frequent starts with high inertia load
Q: Which of the following causes slow temperature increase in the motor winding?
A: Low viscosity of the pumping liquid
Q: Which of the following causes slow temperature increase in the motor winding?
A: Locked rotor
Q: Fill in the blank with the correct answer. Fitting protective devices in motors will help avoid [xxxxxxx].
A: Unexpected breakdown
Q: Fill in the blank with the correct answer. Fitting protective devices in motors will help avoid [xxxxxxx].
A: Sudden increase or decrease in temperature
Q: Fill in the blank with the correct answer. Fitting protective devices in motors will help avoid [xxxxxxx].
A: Frequency variation
Q: Which of the following things does a built-in protection device normally sense and protect against:
A: Temperature
Q: Which of the following things does a built-in protection device normally sense and protect against:
A: Cos ϕ
Q: Which of the following things does a built-in protection device normally sense and protect against:
A: Voltage
Q: Which formula will you use to calculate motor efficiency if the motor size is listed in hp?
A: (P2× 0.746/P1) × 100%
Q: Which formula will you use to calculate motor efficiency if the motor size is listed in hp?
A: ( P1 × 0.746/P2) ×100 %
Q: Which formula will you use to calculate motor efficiency if the motor size is listed in hp?
A: ( P3 ×0.746/P2 ) ×100 %