Electric Drives Questions and Answers
Q1.
The sine function is an odd function.
Answer :
True
Q2.
The characteristics shown by an element in the V-I curve is V=Is(1-e-V/K). The nature of the element is _____
Answer :
Non-linear, Unilateral, Passive
Q3.
The forced response is due to a source present in the circuit.
Answer :
True
Q4.
The quality factor is calculated for ______
Answer :
Inductive coils
Q5.
_____ motor operates at low power factor.
Answer :
Shaded pole
Q6.
450-seconds rated motor is preferable for _______
Answer :
Light duty cranes
Q7.
A high starting torque is offered by the Belt Conveyors.
Answer :
True
Q8.
The direction of the single-phase IM can be reversed by using which one of the method?
Answer :
By interchanging the supply terminals
Q9.
What is heating time constant of the machine?
Answer :
The ratio of the thermal capacity and heat dissipation constant value
Q10.
The most common cause of motor failure is _____
Answer :
Low resistance
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