Electrical Machines In induction motor wound rotor motor is mainly is used in application where power factor is less. low starting torque. less costly motor is not required. high starting torque. power factor is less. low starting torque. less costly motor is not required. high starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is critical, the power factor of the alternator is leading power factor. unity power factor. lagging power factor. None of these leading power factor. unity power factor. lagging power factor. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor is, in general analogous to two winding transformer with secondary short circuited. auto transformer. two winding transformer with secondary open circuited. None of these two winding transformer with secondary short circuited. auto transformer. two winding transformer with secondary open circuited. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature core of the rotor bars of dc motors are laminated to reduce mechanical losses. to reduce eddy current loss. to provide better flux linkage. to reduce hysteresis loss. to reduce mechanical losses. to reduce eddy current loss. to provide better flux linkage. to reduce hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of DC shunt motor if load is reduced The speed will remains almost constant. DC Shunt Motor The speed will increase in proportion to reduction in load. The speed will increase abruptly. The speed will remains almost constant. DC Shunt Motor The speed will increase in proportion to reduction in load. The speed will increase abruptly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Thin laminations are used in a machine in order to reduce Hysteresis losses Copper losses Eddy current losses Both 1 and 2 Hysteresis losses Copper losses Eddy current losses Both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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