Electrical Machines When the supply terminal of a DC shunt motor are interchanged The motor will run at its normal speed in the same direction as before. The direction of rotation will reverse. The motor will run much faster in the same direction. The motor will stop. The motor will run at its normal speed in the same direction as before. The direction of rotation will reverse. The motor will run much faster in the same direction. The motor will stop. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When pure inductive load is connected to the alternator, what is the effect of armature reaction? None of these Demagnetization Magnetization Cross magnetization None of these Demagnetization Magnetization Cross magnetization ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The core flux in transformer depends mainly on supply voltage, frequency and load supply voltage and frequency supply voltage supply voltage and load supply voltage, frequency and load supply voltage and frequency supply voltage supply voltage and load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance. armature circuit none of above both A and B shunt field armature circuit none of above both A and B shunt field ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions hunting of synchronous motor is likely to occur ? Over-excitation. Periodic variation of load. Over-loading for long period. Small and constant load. Over-excitation. Periodic variation of load. Over-loading for long period. Small and constant load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a DC motor at the time of starting is Zero. Normal. Very high. Very low. Zero. Normal. Very high. Very low. ANSWER DOWNLOAD EXAMIANS APP
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