AC SINGLE PHASE INDUCTION MOTORS - Practice Mode

1) What is the basic working principle of single phase universal motors?

Same as DC Motors Faradays laws Rotating magnetic field theory Flemings right hand rule

Correct Answer: Same as DC Motors

2) Which motor has very low starting torque?

Three phase squirrel cage motor Three phase slip ring motor Resistance start induction run motor Universal motor

Correct Answer: Resistance start induction run motor

3) Which type of rotor is used in capacitor start induction run single phase motor?

Slip ring type Commutator type Wound rotor type Squirrel cage type

Correct Answer: Squirrel cage type

4) How many number of windings are there in split phase resistance type induction motor?

1 2 3 4

Correct Answer: 2

5) Which winding circuit will have more resistance in split phase resistance type induction motor?

Main winding Compensating winding Auxilary winding Damper winding

Correct Answer: Auxilary winding

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