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.Management Sciences
A. Pole changing squirrel cage motors
B. D.C. motors with Ward-leonard con-trol
C. A.C. slip ring motors with variable resistance
D. Any of the above
Related Mcqs:
- For a particular application the type of electric-and control gear are determined by which of the following considerations ?
- A. Starting torque B. Conditions of environment C. Limitation on starting current D. Speed control range and its nature E. All of the above...
- ________________ motor is a constant speed motor?
- A. Synchronous motor B. Schrage motor C. Induction motor D. Universal motor...
- Flame proof motors are used in_________________?
- A. paper mills B. steel mills C. moist atmospheres D. explosive atmospheres...
- Which of the following machines has heavy fluctuation of load ?
- A. Printing machine B. Punching machine C. Planer D. Lathe...
- For crane travel which of the following motors is normally used ?
- A. Synchronous motor B. D.C. differentially compound motor C. Ward-Leonard controlled D.C. shunt motor D. AC. slip ring motor...
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