The speed of a universal motor is usually reduced by using____________?
The speed of a universal motor is usually reduced by using____________?
A. gearing
B. belts
C. brakes
D. chains
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The rotor developed by a single-phase motor at starting is___________?
The rotor developed by a single-phase motor at starting is___________?A. more than i.he rated torque
B. rated torque
C. less than the rated torque
D. zeroA capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will______________?
A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will______________?A. start and then stop
B. start and run slowly
C. start and run at rated speed
D. not start at allThe range of efficiency for shaded pole motors is______________?
The range of efficiency for shaded pole motors is______________?A. 95% to 99%
B. 80% to 90%
C. 50% to 75%
D. 5% to 35%A.C. series motor as compared to D.C. series motor has__________?
A.C. series motor as compared to D.C. series motor has__________?A. smaller brush width
B. less number of field turns
C. more number of armature turns
D. less air gap
E. all of the aboveThe shaded pole motor is used for__________?
The shaded pole motor is used for__________?A. high starting torque
B. low starting torque
C. medium starting torque
D. very high starting torqueWhich of the following motors is used in a situation where load increases with speed ?
Which of the following motors is used in a situation where load increases with speed ?A. Induction motor
B. Three-phase series motor
C. Schrage motor
D. Hysteresis motor