If an insulating material is operated beyond the maximum allowable temperature, its life is_____________?

Related Mcqs:

impose limitation on design____________?

A. Saturation B. Temperature rise C. Efficiency D. Power factor E. All above...

Hydrogen has a heat transfer co-efficient __________ times that of air?

A. 1.5 B. 2.5 C. 3.5 D. 4.5...

Tractive magnets are operated from____________?

A. a.c. supply B. d.c. supply C. either a.c. or d.c. supply D. none of the above...

In D.C. machines the width of the duct is usually_____________?

A. 4 mm B. 6 mm C. 8 mm D. 10 mm...

Helical windings are used in________________?

A. distribution transformers B. power transformers C. shell type transformers D. none of the above...