Electrical Engineering : Industrial Drives QUESTIONS AND ANSWERS :: part2 : 21 to 25
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
21.In case of _______ speed control by injecting e.m.f. in the rotor circuit is possible, |
| d.c. shunt motor |
| schrage motor |
| synchronous motor |
| slip ring induction motor |
22.For derries and winches which of the following drives can be used ? |
| Pole changing squirrel cage motors |
| D.C. motors with Ward-leonard con-trol |
| A.C. slip ring motors with variable resistance |
| Any of the above |
More Industrial Drives QUESTIONS AND ANSWERS available in next pages
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