Electrical Machines The overall power factor of an on load transformer is always lagging. depends on the power factor of the load. is always leading. is always unity. is always lagging. depends on the power factor of the load. is always leading. is always unity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ratio of starting torque to full load torque is minimum in Series motor. Shunt motor. Differential compound motor. Cumulative compound motor. Series motor. Shunt motor. Differential compound motor. Cumulative compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For power factor improvement the synchronous motor is to be lightly loaded and underecited heavily loaded and underexcited heavily loaded and over excited lightly loaded and over excited lightly loaded and underecited heavily loaded and underexcited heavily loaded and over excited lightly loaded and over excited ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following are variable losses? shunt field copper loss hysteresis loss eddy current loss armature copper loss shunt field copper loss hysteresis loss eddy current loss armature copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The frequency of voltage generated by an alternator having 8 poles and rotating at 250 rpm is 16.67 Hz. 60 Hz. 50 Hz. 25 Hz. 16.67 Hz. 60 Hz. 50 Hz. 25 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor can be reversed by disconnecting any one phase. transposing all the three leads from the supply. transposing any two leads from supply. transposing any two leads from slip rings. disconnecting any one phase. transposing all the three leads from the supply. transposing any two leads from supply. transposing any two leads from slip rings. ANSWER DOWNLOAD EXAMIANS APP
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