29) What is the starting current of an A.C 3 phase induction motor?

1 to 2 times of full load current

2 to 3 times of full load current

4 to 5 times of full load current

5 to 6 times of full load current

Answer is:

5 to 6 times of full load current

By cascade operation

By rotor rheostat control

By injecting emf in rotor circuit

By changing the applied frequency

Answer is:

Open circuit and short circuit

Closed circuit and open circuit

Short circuit and closed circuit

Control circuit and power circuit

Answer is:

Non moisturized material

Highly non-hygroscopic

Very good for class F insulation

Better ageing and dielectric strength

Answer is:

Cotton sleeves

Empire sleeves

Terylene thread

Fibre glass tape

Answer is: