Electrical Machines Eg (generated emf) and Eb (back emf) both are none of above. same. different. changes. none of above. same. different. changes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When an electric train is moving down a hill, the DC motor will operate as DC shunt generator. DC shunt motor. DC series generator. DC series motor. DC shunt generator. DC shunt motor. DC series generator. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the brushes remain in contact with conductors which lie under north pole. lie under south pole. lie in the inter polar gaps. there is no hard and fast rule for this. lie under north pole. lie under south pole. lie in the inter polar gaps. there is no hard and fast rule for this. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is running at rated speed without any additional resistance in series. If an additional resistance is placedin series, the speed of motor Increases. Remains unchanged. Decreases. Oscillates around the rated speed. Increases. Remains unchanged. Decreases. Oscillates around the rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During no load test, an induction motor draws power for copper loss and windage friction loss. only for the small copper loss. for core loss and windage and friction loss. for core loss and copper loss. for copper loss and windage friction loss. only for the small copper loss. for core loss and windage and friction loss. for core loss and copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? Synchronous impedance method. MMf method. ZPF method. All of these Synchronous impedance method. MMf method. ZPF method. All of these ANSWER DOWNLOAD EXAMIANS APP
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