Tractive magnets are operated from____________?

Related Mcqs:

Electrical machines having power outputs ranging from a few kW up to approximately 250 kW may be classified as_____________?

A. small size machines B. medium size machines C. large size machines D. any of the above...

The heated parts of an electrical machine dissipate heat into their surroundings by which of the following modes of heat dissipation ?

A. Conduction B. Convection C. Radiation D. All of the above...

Machines cooled by direct cooling method may be called_____________?

A. “supercharged” B. “inner cooled” C. “conductor cooled” D. any of the above...

When the two coil sides forming a coil are spaced exactly one pole pitch apart they are said to be of_____________?

A. short pitch B. full pitch C. either of the above D. none of the above...

For large power transformers, self oil cooled type or air blast type which of the following values of current density may be used?

A. 1.0 to 1.2 A/mm2 B. 1.5 to 2.0 A/mm2 C. 2.2 to 3.2 A/mm2 D. 3.2 to 4.2 A/mm2...