The design of mechanical parts is particularly important in case of __________ speed machines?

Related Mcqs:

Materials exhibiting zero value of resistivity are known as ____________ ?

A. conductors B. semiconductors C. insulators D. superconductors...

The slot leakage can be calculated by making which of the following assumptions ?

A. The current in the slot conductors is uniformly distributed over their cross-section B. The leakage path is straight across the slot and around the iron at the bottom C. The permanence of air paths is only considered. The reluctance of iron paths is assumed as zero D. All of the above...

In transformers using hot rolled steel, the cross-section of the yoke is made about __________ greater than that of the core?

A. 5 percent B. 10 percent C. 15 percent D. 30 percent E. none of the above...

Which of the following brushes can be used for high values of current density ?

A. Metal graphite brushes B. Hard carbon brushes C. Electro-graphitic brushes D. Natural graphite brushes...

Transformers with a capacity of up to __________ have a cooling radiator system with natural cooling?

A. 2 MVA B. 5 MVA C. 7.5 MVA D. 10 MVA...