railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines Three Phase Induction Motor Cogging
Which of the following are advantages of skewing of the rotor of an induction motor?
1. Elimination of cogging or magnetic locking.
2. Prevent crawling.
3. Produce non-uniform torque.
4. Eliminate any type of harmonic.
5. Reduce noise.
Correct code is
1
1 and 2
2
1, 2, 3 and 4
3
1, 2, 4 and 5
4
1, 2, 3, 4 and 5