railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines Three Phase Induction Motor Induction Motor Speed Control
Directions: The question consists of two statements, one labeled as ‘Statement (I)’ and the other labeled as ‘Statement (II)’. You are to examine these two statements carefully and select the answers to these items using the codes given below:
Statement (I): During the rotor resistance method of speed control of the induction motor, the motor acts as a constant torque variable power drive.
Statement (II): During the stator voltage control method of speed control of the induction motor, the motor acts as a constant torque variable power drive.
1
Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I).
2
Both Statement (I) and Statement (II) are individually true, but Statement (II) is not the correct explanation of Statement (I).
3
Statement (I) is true, but Statement (II) is false.
4
Statement (I) is false, but Statement (II) is true.