The efficiency of a dc machine can be determined without directly loading it with the following information(s).
A. Machine rating.
B. Armature and field resistances.
C. No-load input of the machine.
D. All of the above information.
Answer:D
The efficiency of a dc machine can be determined without directly loading it with the following information(s).
A. Machine rating. B. Armature and field resistances. C. No-load input of the machine. D. All of the above information.