The efficiency of a machine should be as ____________ as possible to reduce the operating cost?

Related Mcqs:

The length cf air gap to be provided in __________ is primarily determined by power factor consideration?

A. d.c. series motor . B. d.c. shunt motor C. induction motor D. synchronous motor...

Which of the following methods is used for air cooling of turbo-alternators ?

A. One sided axial ventilation B. Two sided axial ventilation C. Multiple inlet system D. All of the above...

Dummy coil should not be used in_________________?

A. small machines B. large machines C. either A. or B. D. none of the above...

In a D.C. machine the number of brush arms is _________ the number of poles?

A. less than B. equal to C. greater than D. none of the above...

A practical formula for determining the thickness of insulation between low voltage and high voltage windings is__________________?

A. 1 + 0.2 kVmm B. 2 + 0.5 kVmm C. 4 + 0.7 kV mm D. 5 + 0.9 kV mm...