Electrical Machines Hunting in a synchronous motor takes place when power factor is unity. when load varies. when supply voltage fluctuates. motor is under loaded. when power factor is unity. when load varies. when supply voltage fluctuates. motor is under loaded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During no load test, an induction motor draws power for copper loss and windage friction loss. only for the small copper loss. for core loss and copper loss. for core loss and windage and friction loss. for copper loss and windage friction loss. only for the small copper loss. for core loss and copper loss. for core loss and windage and friction loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series generators are used in which of the following applications? Air crafts. Used as boosters in dc distribution or transmission. Arc welding. All of these Air crafts. Used as boosters in dc distribution or transmission. Arc welding. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When pure inductive load is connected to the alternator, what is the effect of armature reaction? Cross magnetization Demagnetization Magnetization None of these Cross magnetization Demagnetization Magnetization None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking can be used for series motors. compound motors. shunt motors. All of these series motors. compound motors. shunt motors. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In alternator, the rotary part is none of these. core. magnetic field poles. armature. none of these. core. magnetic field poles. armature. ANSWER DOWNLOAD EXAMIANS APP
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