Electrical Machines Which of the following statements is/are correct statements? EMF per turn in both the windings are equal All of these EMF per turn in HV winding is more than EMF per turn in LV winding EMF per turn in HV winding is less than EMF per turn in LV winding EMF per turn in both the windings are equal All of these EMF per turn in HV winding is more than EMF per turn in LV winding EMF per turn in HV winding is less than EMF per turn in LV winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a three phase star - delta transformer, what is the angle difference between primary and secondary phase voltages? Star side lags by -30°. Delta side lags by -30°. Delta side leads by 30°. Star side leads by 30°. Star side lags by -30°. Delta side lags by -30°. Delta side leads by 30°. Star side leads by 30°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When Flemings right hand rule to find the direction of induced emf, the thumb points towards direction of motion of the conductor. direction of flux. direction of induced emf. opposite to the direction of motion of the conductor. direction of motion of the conductor. direction of flux. direction of induced emf. opposite to the direction of motion of the conductor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has maximum speed? 8 pole. 4 pole. 2 pole. 6 pole. 8 pole. 4 pole. 2 pole. 6 pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for crane travel, trolley and boom hoist which motor is preferred? Synchronous motor. Slip ring induction motor. DC differential compound motor. Stepper motor. Synchronous motor. Slip ring induction motor. DC differential compound motor. Stepper motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 200 V DC machine supplies 20 A at 200 V as a generator. The armature resistance is 0.2 Ω. If the machine is now operated as a motor at same terminal voltage and current but with the flux increased by 10%, the ratio of motor speed to generator speed is 1.06 0.95 0.87 0.96 1.06 0.95 0.87 0.96 ANSWER DOWNLOAD EXAMIANS APP
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