Electrical Machine MCQ: Induction Motor #11

Induction Motor MCQ #11

Electrical Machine MCQ: Induction Motor #11 (#121 to #130)

Induction Motor MCQ #11

121) The frame of an induction motor is usually made of
122) The frequency of the induced emf in an induction motor is
123) In an induction motor, the rotor speed is always
124) The efficiency of an induction motor is about
125) In an induction motor, greater the number of poles
126) A 4-pole three-phase induction motor has a synchronous speed of 25 rev/s. The frequency of the supply to the stator is
127) The slip speed of an induction motor depends upon
128) An induction motor can be said analogous to
129) Mechanically air gaps in an induction motor are kept very low to avoid
130) A 50 Hz, 3-phase induction motor has a full load speed of 1440 RPM The number of poles in the motor is
Electrical Machine MCQ: Induction Motor #11
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