Electrical Machines With the increases in field excitation of a DC generator, its generated emf decreases. remains constant. increases upto a limit and then remains almost constant. increases. decreases. remains constant. increases upto a limit and then remains almost constant. increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, the frequency of a voltage at the secondary is any of the above. less than primary. greater than the primary. equal to primary. any of the above. less than primary. greater than the primary. equal to primary. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The three point starter is used for Series motor. Shunt motor as well as compound motors. Shunt, compound and series motor. Shunt motor. Series motor. Shunt motor as well as compound motors. Shunt, compound and series motor. Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V-curve of synchronous motor shows the variation of power factor and dc excitation at constant load supply voltage and field current at constant excitation All of these power factor and supply voltage during hunting power factor and dc excitation at constant load supply voltage and field current at constant excitation All of these power factor and supply voltage during hunting ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit in a transformer is prefered with direct current rated transformer voltage high frequency supply rated transformer current direct current rated transformer voltage high frequency supply rated transformer current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two of supply terminals to a 3 - Φ induction motor get interchanged during re-connection after normal maintenance. When switched on the supply, the motor will rotate in direction opposite to that before maintenance. not start at all. get heated and damaged. rotate in the same direction as before maintenance. rotate in direction opposite to that before maintenance. not start at all. get heated and damaged. rotate in the same direction as before maintenance. ANSWER DOWNLOAD EXAMIANS APP
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