During rheostat braking of D.C. series motors – McqOptions

MCQOPTIONS

1.	During rheostat braking of D.C. series motors
A.	motor is run as a generator
B.	motor is reversed in direction
C.	motor is run at reduced speed
D.	none
Answer» B. motor is reversed in direction

Discussion

No Comment Found

Related MCQs

Which of the following motors one will choose to drive the rotary compressor ?
To get the speed of D.C, motor below the normal without wastage of electrical energyis used.
Which D.C. motor is generally preferred for cranes and hoists ?
For which of the following applications a D.C. motor is preferred over an A.C. motor ?
In case the back e.m.f. and the speed of a D.C. motor are doubled, the torque developedby the motor will
Which D.C. motor is preferred for elevators ?
Which of the following motors is most suitable for signalling devices and many kindsof timers ?
According to Fleming's left-hand rule, when the forefinger points in the direction of the field or flux, the middle finger will point in the direction of
One D.C. motor drives another D.C. motor. The second D.C. motor when excited anddriven
The mechanical power developed by a shunt motor will be maximum when the ratioof back e.m.f. to applied voltage is