Insertion of external resistance in the squirrel cage induction motor – McqOptions

MCQOPTIONS

1.	Insertion of external resistance in the squirrel cage induction motor _________
A.	increases torque
B.	decreases torque
C.	increases torque for some seconds and then decreases
D.	does not affect
Answer» B. decreases torque

Discussion

No Comment Found

Related MCQs

The hydroelectric plants in the industry are best suited with _________
A peaky voltage supply is given to the 3 phase power transformer of the connection power system. These results in _________
A three phase induction motor is connected to the infinite bus operating at the normal conditions. There occurs an unbalancing in the supply, leading to _________
If one of the phases of RYB supply gets broken, then the temperature rise of the induction motor _________
If one of the phases of the supply breaks down, then the connected three phase induction motor _________
For squirrel cage and slip ring induction motor, cooling methods is efficient in _________
In dc machine iron losses cause _________
If two series motors are identically coupled. One is running as motor while other as generator. For this combination, the iron losses and frictional losses are found identical for _________
For the given traction application using a dc series motor for a starting time t is applied. If this method is replaced by a series-parallel control, giving 50% time for each series and parallel. The saving in the starting energy of _________
If the rotor circuit resistance is increased in an induction motor, maximum torque will occur at _________