Electrical Machines In a transformer, the frequency of a voltage at the secondary is equal to primary. any of the above. greater than the primary. less than primary. equal to primary. any of the above. greater than the primary. less than primary. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When an electric train is moving down a hill, the DC motor will operate as DC shunt motor. DC shunt generator. DC series motor. DC series generator. DC shunt motor. DC shunt generator. DC series motor. DC series generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to improve efficiency. reduce copper loss. improve power factor. improve starting torque. improve efficiency. reduce copper loss. improve power factor. improve starting torque. 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 level compound. series generator. short - shunt generator. shunt generator. level compound. series generator. short - shunt generator. shunt generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is critical, the power factor of the alternator is lagging power factor. unity power factor. None of these leading power factor. lagging power factor. unity power factor. None of these leading power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Normally for the design of transformer the ambient temperature is taken as 27°C. 32°C. 35°C. 45°C. 27°C. 32°C. 35°C. 45°C. ANSWER DOWNLOAD EXAMIANS APP
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