Electric Drives Questions and Answers
Q1.
All networks are always circuits.
Answer :
False
Q2.
Reactive power is positive in the case of the inductor.
Answer :
True
Q3.
Wound rotor induction motor has better _____ characteristics than Squirrel cage induction motor.
Answer :
Starting
Q4.
Source transformation is not valid for ______
Answer :
Ideal current and voltage source
Q5.
In Induction motor rotor laminations are thicker than stator laminations.
Answer :
True
Q6.
The use of the capacitor banks in the 3-phase Induction motor is _______
Answer :
To increase the power factor
Q7.
The unbalanced set of 3-phase voltages causes ______
Answer :
Negative sequence current
Q8.
Full form of TVR is _____
Answer :
Terminal voltage reversal
Q9.
In DC series machine ∅ is directly proportional to Ia.
Answer :
True
Q10.
In dynamic braking, DC series motor behaves as a _______
Answer :
Separately excited motor
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