7. The total rotational losses of an induction motor are a combination of A) Friction losses C) Core losses. B) Windage losses. D) Stray losses. 8. The developed mechanical power can be calculated using the equation of - A) PAG - PRCL. B). PAG Wsync C) (1-s) PAG. D) 3 E2Gc. 9. For an induction motor, if the synchronous speed is 1800 r/m, and the rotor speed 180rad/sec, then the slip will be: A) 5.5% C) 6% B) 4.5% D) 4%

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7. The total rotational losses of an induction motor are a combination of -------
A) Friction losses
B) Windage losses.
D) Stray losses.
C) Core losses.
8. The developed mechanical power can be calculated using the equation of-
A) PAG - PRCL.
B)
PAG
w sync
C) (1-s) PAG.
D) 3 E2Gc.
9. For an induction motor, if the synchronous speed is 1800 r/m, and the rotor speed
180rad/sec, then the slip will be:
A) 5.5%
C) 6%
B) 4.5%
D) 4%
10. The power losses in the stator part of the induction motor are
B) Core losses
D) Friction and windage losses
A) Stator copper losses
C) Air-gap losses
Transcribed Image Text:7. The total rotational losses of an induction motor are a combination of ------- A) Friction losses B) Windage losses. D) Stray losses. C) Core losses. 8. The developed mechanical power can be calculated using the equation of- A) PAG - PRCL. B) PAG w sync C) (1-s) PAG. D) 3 E2Gc. 9. For an induction motor, if the synchronous speed is 1800 r/m, and the rotor speed 180rad/sec, then the slip will be: A) 5.5% C) 6% B) 4.5% D) 4% 10. The power losses in the stator part of the induction motor are B) Core losses D) Friction and windage losses A) Stator copper losses C) Air-gap losses
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