UPRVNL Questioions

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Q1:-In a single phase induction motor how are the winding place?

     

     1.       Both main and auxiliary winding are on stator

     2.       Auxiliary on stator and main on motor

     3.       Both winding are on rotor

     4.       Main winding on rotor

Answer:-1

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Q2:- For a system to be stable

     1.       Gain margin is positive and phase margin both are negative

     2.       Gain margin is positive and phase margin is negative

     3.       Gain margin and phase margin both are positive

     4.       None of these

Answer:-3

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Q3:- Which of the following amplifier is having

     1.       Class A

     2.       Class D

     3.       Class C

     4.       Class AB

Answer:-2

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Q4:-Thyristor controlled compensator is usually.

     1.       Zero power factor leading

     2.       Unity power factor

     3.       A slightly lagging power factor

     4.       A slightly leading power factor

Answer:-3

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Q5:- A transmission line with reactance of 0.3 pu is supplied at constant voltage of 1.25 pu it is supplying reactive power 0.4 pu and is operating at half of the steady state stability limit. The reactive end voltage in feeder is 

1. 1 pu
2. 1.11 pu
3. 1.32 pu
4. 1.18 pu

ANSWER:-4

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