In the transformer following winding has got more cross-sectional area______________?
A. Low voltage winding
B. High voltage winding
C. Primary winding
D. Secondary winding
Distribution transformers are generally designed for maximum efficiency around________________?
A. 90% load
B. zero load
C. 25% load
D. 50% load
The power transformer is a constant______________?
A. voltage device
B. current device
C. power device
D. main flux device
The noise produced by a transformer is termed as_______________________?
A. zoom
B. hum
C. ringing
D. buzz
No-load current of a transformer has_____________?
A. has high magnitude and low power factor
B. has high magnitude and high power factor
C. has small magnitude and high power factor
D. has small magnitude and low power factor
Negative voltage regulation is indicative that the load is___________?
A. capacitive only
B. inductive only
C. inductive or resistive
D. none of the above
While conducting short-circuit test on a transformer the following side is short circuited?
A. High voltage side
B. Low voltage side
C. Primary side
D. Secondary side