is usually used for brush rockers____________?

Related Mcqs:

In _________ machines, the size of the shaft is decided by the critical speed which depends on the deflection of the shaft?

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

With conventional hydrogen cooling it is possible to increase the rating of a single unit to___________?

A. 50 MW B. 100 MW C. 200 MW D. none of the above...

In self cooled motors the cooling time constant is about ___________ than the heating time constant because cooling conditions are worse at standstill?

A. 2 to 3 times greater B. 3 to 4 times greater C. 4 to 5 times greater D. none of the above...

Power transformers have rating_______________?

A. equal to 50 kVA B. equal to 100 kVA C. above 200 kVA D. none of the above...

The voltage control in electric supply networks in required on account of which of the following reasons ?

A. Adjustment of voltage at consumers premises within statutory limits B. Control of active and reactive power C. Adjustment of short period daily and seasonal voltage variations in accordance with variations of load D. All of the above...