Electric Drives Questions and Answers
Q1.
Which of the following is a function of electric drive?
Answer :
Transport energy from the storage system to the wheels
Q2.
Which of the following devices should be used as a switch for high power and high voltage application?
Answer :
Thyristor
Q3.
Which of the following are used in preventing the hunting phenomenon in synchronous generators?
Answer :
Damper bars
Q4.
In the rotor voltage injection method, when an external voltage source is in phase with the main voltage then speed will ______
Answer :
Increase
Q5.
Which of the following is the correct abbreviation of NENO?
Answer :
Neither even nor odd
Q6.
Which of the following are the classes of insulating material in electrical machines?
Answer :
Γ, A, E, F, H, C
Q7.
Which of the following is used to protect SCR from thermal conditions?
Answer :
Heat sink
Q8.
Current Chopping is most severe in which of the following?
Answer :
Air Blast Circuit Breaker
Q9.
Salient pole machines are more stable than cylindrical rotor machines.
Answer :
True
Q10.
The unit of the moment of inertia is Kgm2.
Answer :
True
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