A. small
B. medium
C. large
D. any of the above.
0
Electrical machines having power outputs ranging from a few kW up to approximately 250 kW may be classified as_____________?
0
The efficiency of a machine should be as ____________ as possible to reduce the operating cost?
A. small size machines
B. medium size machines
C. large size machines
D. any of the above
0
Which of the following is the major consideration to evolve a good design ?
A. high
B. low
C. either of the above
D. none of the above
0
In induction motors, the length of air gap in kept as small as mechanically possible is order to have____________?
A. Cost
B. Durability
C. Compliance with performance criteria as laid down in specifications
D. All of the above
0
Electrical machines having a power output up to about 750 W may be called__________machines?
A. low power factor
B. high power factor
C. high over load capacity
D. any of the above
0
If an insulating material is operated beyond the maximum allowable temperature, its life is_____________?
A. small size
B. medium size
C. large size
D. any of the above
0
impose limitation on design____________?
A. drastically increased
B. drastically reduced
C. unaffected
D. none of the above
0
The design of mechanical parts is particularly important in case of __________ speed machines?
A. Saturation
B. Temperature rise
C. Efficiency
D. Power factor
E. All above