Fill in the blank with the correct answer. Fitting protective devices in motors will help avoid [xxxxxxx].
Identify the parameters that a motor protection device monitors.
Which of the following causes slow temperature increase in the motor winding?
Which formula will you use to calculate motor efficiency if the motor size is listed in hp?
Which of the following things does a built-in protection device normally sense and protect against:
Which of the following statements is true about power consumed and the amount charged?
Test results
Congratulations. You have passed the test and completed the 14 - Motors and motor protection
Achieved badges:
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: Identify the parameters that a motor protection device monitors.
A: Power consumption
Q: Identify the parameters that a motor protection device monitors.
A: Output
Q: Identify the parameters that a motor protection device monitors.
A: Viscosity of the pumping liquid
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: 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 %
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 of the following statements is true about power consumed and the amount charged?
A: The amount of power that the power company charges is less than the power consumed by the motor in all instances.
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.
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 greater than the power consumed by the motor in instances.