A dc shunt motor is running on no load at 600 rpm. If the motor is run, on no load, continuously for 12 hours, the speed of the motor after 12 hour run will
A. be 600 rpm.
B. exceed 600 rpm.
C. fall below 600 rpm.
D. be 450 rpm.
Answer:B
A dc shunt motor is running on no load at 600 rpm. If the motor is run, on no load, continuously for 12 hours, the speed of the motor after 12 hour run will
A. be 600 rpm. B. exceed 600 rpm. C. fall below 600 rpm. D. be 450 rpm.