A. 20 to 30 m/s
B. 10 to 15 m/s
C. 5 to 10 m/s
D. 1 to 2.5 m/s
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Related Mcqs:
- Which of the following motors are pre-ferred for overhead travelling cranes ?
- A. Slow speed motors B. Continuous duty motors C. Short time rated motors D. None of the above...
- Light duty cranes are used in which of the following ?
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- Heavy duty cranes are used in________________?
- A. ore handling plants B. steel plants C. heavy engineering workshops D. all of the above...
- Which of the following motors is preferred for boom hoist of a travelling crane ?
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- An aeroplane of wingspan 10m flies from the equator towards the North Pole. The wings are perpendicular to the vertical component of the earths magnetic field (B = 4×10-5T). At maximum speed an emf of 96mV is induced across the wing tips. The maximum speed of the aeroplane is____________?
- A. 150msec-1 B. 384msec-1 C. 38.4msec-1 D. 200msec-1...
- __________________ has relatively wider range of speed control?
- A. Synchronous motor B. Ship ring induction motor C. Squirrel cage induction motor D. D.C. shunt motor...
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- In which of the following applications variable speed operation is preferred ?
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