Electrical Machines Induction Generator Online Exam Quiz
Electrical Machines Induction Generator GK Quiz. Question and Answers related to Electrical Machines Induction Generator. MCQ (Multiple Choice Questions with answers about Electrical Machines Induction Generator
Induction generator ____________
Options
A : can not work in isolation
B : can work in isolation
C : should work in parallel with synchronous generators
D : any of the mentioned
The magnetization curve in the induction generator working in isolation has similar characteristic as ____________
Options
A : dc shunt generator
B : dc cumulative field generator
C : synchronous generator
D : all of the mentioned
What is/are the shortcomings of an induction generator in real time system?
Options
A : It needs considerable amount of reactive power
B : Efficiency is poor
C : It can work at leading power factor only
D : All of the mentioned
If the residual flux is absent in the rotor iron of the isolated induction generator ____________
Options
A : it will not run
B : it will run as induction motor
C : it will burn the winding
D : it will not affect the characteristic of the generator
For an induction motor to work in isolation, it should have ____________
Options
A : lagging reactive power source
B : leading reactive power source
C : leading reactive power sink
D : any of the mentioned
Two three phase squirrel-cage induction generator are identical in all respects except the fact that the slot depths in machine B is more than that of A. Machine B as compared to machine A, will have _________
Options
A : less pull out torque but better power factor
B : more pull out torque but poor power factor
C : less pull out torque and poor power factor
D : more pull out torque and better power factor
A 3-phase induction motor has full load efficiency of 0.7 and a maximum efficiency of 0.85. It is operated at a slip of 0.6 by reduced voltage method. The efficiency of the motor at this operating point is?
Options
A : less than 0.35
B : greater than 0.35
C : in the range of 0.8 to 0.2
D : none of the mentioned
A self excited induction generator ____________
Options
A : must have static capacitor bank
B : can have static capacitor bank
C : should have static capacitor bank
D : any of the mentioned
A 3-phase induction motor can also be run as ______________
Options
A : synchronous generator
B : induction generator
C : dc shunt motor
D : any of the mentioned
Induction generator can only work at leading reactive power.
Options
A : True
B : False
C :
D :
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