Electrical Machines Which of the following generators are used in arc welding? cumulative compound generators series generators differential compound generators shunt generators cumulative compound generators series generators differential compound generators shunt generators ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and flux of a DC motor are held constant and voltage applied across it armature is increased by 5%, the speed of the motor will Increase by 5%. Reduce by 5%. Remain unchanged. Depends on other factor. Increase by 5%. Reduce by 5%. Remain unchanged. Depends on other factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the armature reaction results in magnetization of inter poles. demagnetization of centers of poles. demagnetization of leading & magnetization of trailing pole tip. magnetization of leading and demagnetization of trailing pole tip. magnetization of inter poles. demagnetization of centers of poles. demagnetization of leading & magnetization of trailing pole tip. magnetization of leading and demagnetization of trailing pole tip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor has which of the following characteristics? Has its field winding consinting of thick wire and less no of turns. Has a poor torque. Can be started easily without load. Has a almost constant speed. Has its field winding consinting of thick wire and less no of turns. Has a poor torque. Can be started easily without load. Has a almost constant speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shaded pole single phase induction motor can be used for food mixers personal computers as cooling fan tape recorders wet grinders food mixers personal computers as cooling fan tape recorders wet grinders ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Saving of copper in auto transformer is increased as compared to two winding transformer, when transformation ratio K approaches to unity. two. zero. infinity. unity. two. zero. infinity. ANSWER DOWNLOAD EXAMIANS APP
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