Electrical Machines In dc machines, the space distribution of air-gap flux density wave at no load is flat-topped co- sinusoidal sinusoidal rectangular flat-topped co- sinusoidal sinusoidal rectangular ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When two DC series motors are connected in parallel, the resultant speed is normal speed. more than normal speed. less than normal speed. zero. normal speed. more than normal speed. less than normal speed. zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statement is correct, if short circuit ratio is high? None of these High voltage regulation Good voltage regulation Low short circuit current None of these High voltage regulation Good voltage regulation Low short circuit current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hunting phenomenon is observed in which motor? Both A and C. DC motor. Induction motor. Synchronous motor. Both A and C. DC motor. Induction motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing diverter resistance of a DC series motor causes increase in speed but armature currnet remains the same. decrease in speed but armature current remains the same. increase in speed demanding more armature current. decrease in speed demanding less armature current. increase in speed but armature currnet remains the same. decrease in speed but armature current remains the same. increase in speed demanding more armature current. decrease in speed demanding less armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC shunt motor if load is increased, the speed remains constant. reduce slightly. increase proportional. increased slightly. remains constant. reduce slightly. increase proportional. increased slightly. ANSWER DOWNLOAD EXAMIANS APP
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