Which of the following motors is preferred when quick speed reversal is the main consideration ?

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...

________________ 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...

The characteristics of drive for crane hoisting and lowering are which of the following ?

A. Precise control B. Smooth movement C. Fast speed control D. All of the above...

Which of the following alternatives will be cheaper ?

A. A 100 H.P. AC. three phase motor B. Four motors of 25 H.P. each C. Five motors of 20 H.P. each D. Ten motors of 10 H.P. each...