Electrical Machines In which of the following motors DC excitation is not required? reluctance motor hysteresis motor 3-phase synchronous motor 3-phase synchronous generator reluctance motor hysteresis motor 3-phase synchronous motor 3-phase synchronous generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC compound motor has only series field winding. only shunt field winding. tertiary winding. both shunt and series field winding. only series field winding. only shunt field winding. tertiary winding. both shunt and series field winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer which of the following losses are zero? Iron loss All of these Rotational loss Copper loss Iron loss All of these Rotational loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will remain unchanged. depend on other factors. reduce by 5 %. increase by 5 %. remain unchanged. depend on other factors. reduce by 5 %. increase by 5 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If dimension of all the parts of a synchorous generator and the number of field and armature turns are double, then generated voltage will change by a factor of 1. 8. 2. 4. 1. 8. 2. 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip exists in synchronous motor. in both machines. induction motor. none of above. synchronous motor. in both machines. induction motor. none of above. ANSWER DOWNLOAD EXAMIANS APP
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