Electrical Engineering : Polyphase Induction Motors QUESTIONS AND ANSWERS :: part2 : 1 to 5
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.In an induction motor the relationship between stator slots and rotor slots is that |
| stator slots are equal to rotor slots |
| stator slots are exact multiple of rotor slots |
| stator slots are not exact multiple of rotor slots |
| none of the above |
2.In the circle diagram for induction motor, the diameter of the circle represents |
| slip |
| rotor current |
| running torque |
| line voltage |
3.An induction motor is |
| self-starting with zero torque |
| self-starting with high torque |
| self-starting with low torque |
| non-self starting |
4.Stepless speed control of induction motor is possible by which of the following methods ? |
| e.m.f. injection in rotor eueuit |
| Changing the number of poles |
| Cascade operation |
| None of the above |
5.Size of a high speed motor as compared to low speed motorfor the same H.P. will be |
| bigger |
| smaller |
| same |
| any of the above |
More Polyphase Induction Motors QUESTIONS AND ANSWERS available in next pages
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