Electrical Machines In an induction motor, what is the ratio of rotor input to rotor copper loss? 1/(1-S) S 1/S 1-S 1/(1-S) S 1/S 1-S ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine will have maximum efficiency? DC motor. Electrical power transformer. Induction motor. Electrical power generator. DC motor. Electrical power transformer. Induction motor. Electrical power generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The polarity of a DC generator can be reversed by reversing field electric current as well as direction of rotation. any of above. increasing field current. reversing the field current. reversing field electric current as well as direction of rotation. any of above. increasing field current. reversing the field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor start capacitor run provides high staring torque and high power factor. high staring torque only. none. high power factor only. high staring torque and high power factor. high staring torque only. none. high power factor only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Satisfactory commutation of DC machine requires brushes should smoothly run in the holders. brushes should be of proper grade and size. All of these smooth, concentric commutator properly undercut. brushes should smoothly run in the holders. brushes should be of proper grade and size. All of these smooth, concentric commutator properly undercut. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltmeter connected across a generator reads voltage same at no load and at full load (rated). The generator is of the type shunt generator. short - shunt generator. level compound. series generator. shunt generator. short - shunt generator. level compound. series generator. ANSWER DOWNLOAD EXAMIANS APP
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