Electrical Machines A simple method of increasing the voltage of a DC generator is to increase the source frequency. increase the speed of shaft rotation. increase the number of turns in armature coil. increase the number of turns in field coil. increase the source frequency. increase the speed of shaft rotation. increase the number of turns in armature coil. increase the number of turns in field coil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What happens if fifth multiples of harmonics is given to induction motor? Either short circuit or open circuit occurs. It will rotates in normal operation. It will rotates in reverse direction. Fail to start. Either short circuit or open circuit occurs. It will rotates in normal operation. It will rotates in reverse direction. Fail to start. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC shunt motors are suitable for All of this. Centrifugal pumps Lathes. Blowers and fans. All of this. Centrifugal pumps Lathes. Blowers and fans. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Motor dc compound motor. dc shunt motor with field weakening. dc shunt with armature resistance control. dc series motor. dc compound motor. dc shunt motor with field weakening. dc shunt with armature resistance control. dc series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When pure inductive load is connected to the alternator, what is the effect of armature reaction? Magnetization Cross magnetization Demagnetization None of these Magnetization Cross magnetization Demagnetization None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used. none of above. rheostatic control. Ward Leonard control. any of above method. none of above. rheostatic control. Ward Leonard control. any of above method. ANSWER DOWNLOAD EXAMIANS APP
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