A schrage motor can run on___________?
A schrage motor can run on___________?
A. zero slip
B. negative slip
C. positive slip
D. all of the above
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In capacitor start single-phase motors____________?
In capacitor start single-phase motors____________?A. current in the starting winding leads the voltage
B. current in the starting winding lags the voltage
C. current in the starting winding is in phase with voltage in running winding
D. none of the aboveThe capacitors used in single-phase capacitor motors have no__________?
The capacitors used in single-phase capacitor motors have no__________?A. voltage rating
B. dielectric medium
C. polarity marking
D. definite valueIn a capacitor start single-phase motor, when capacitor is replaced by a resistance____________?
In a capacitor start single-phase motor, when capacitor is replaced by a resistance____________?A. torque will increase
B. the motor will consume less power
C. motor will run in reverse direction
D. motor will continue to run in same directionIn a two value capacitor motor, the capacitor used for running purposes is_______________?
In a two value capacitor motor, the capacitor used for running purposes is_______________?A. air capacitor
B. paper spaced oil filled type
C. ceramic type
D. a.c. electrolytic typeStarting winding of a single phase motor of a refrigerator is disconnected from the circuit by means of a___________?
Starting winding of a single phase motor of a refrigerator is disconnected from the circuit by means of a___________?A. magnetic relay
B. thermal relay
C. centrifugal switch
D. none of the aboveIn case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will_____________?
In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will_____________?A. become unstable
B. draw excessive armature current and may burn out
C. fall out of synchronism and come to stand still
D. run as induction motor