Electric Drives Questions and Answers
Q1.
Which of the following motor can be referred as a universal motor?
Answer :
DC series motor
Q2.
Which of the following devices should be used as a switch for high power and high voltage application?
Answer :
Thyristor
Q3.
Which one of the following devices have low power losses?
Answer :
SCR
Q4.
Regenerative braking mode can be achieved in which quadrant (V-I curve)?
Answer :
Second
Q5.
Which one is an example of variable loss?
Answer :
Armature copper loss
Q6.
What type of force handles for active torques?
Answer :
Gravitational forces
Q7.
The leakage flux paths are ______ on the angular position of the rotor.
Answer :
Independent
Q8.
A three-phase slip ring induction motor is fed from the rotor side with the stator winding short-circuited. The frequency of the current flowing in the short-circuited stator is _____
Answer :
Slip frequency
Q9.
In DC chopper, the waveform for input and output voltages is respectively _______
Answer :
Continuous and Discontinuous
Q10.
Which of the following device should be used as a switch in a low power switched mode power supply (SMPS)?
Answer :
MOSFET
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