Electrical Engineering : Single Phase Induction Motors QUESTIONS AND ANSWERS :: part3 : 6 to 10
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.In repulsion motor, maximum torque is developed when |
| brush axis is at 45� electrical to the field axis |
| brush axis coincides with the field axis |
| brush axis is at 90� electrical to the field axis |
| none of the above |
7.In a hysteresis motor, the rotor must have |
| retentivity |
| resistivity |
| susceptibility |
| none of the above |
8.The motor used for the compressors is |
| d.c. series motor |
| shaded pole motor |
| capacitor-start capacitor-run motor |
| reluctance motor |
9.The direction of rotation of universal motor can be reversed the by reversing the flow of current through |
| armature winding |
| field winding |
| either armature winding or field winding |
| none of the above |
10.A reluctance motor |
| is self-starting |
| is constant speed motor |
| needs no D.C. excitation |
| all of the above |
More Single Phase Induction Motors QUESTIONS AND ANSWERS available in next pages
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