Electrical Machines If the field connection of a DC Shunt Motor is changed then it will run in same direction by slowly. it will run in opposite direction. it will run in same direction. motor will not run. it will run in same direction by slowly. it will run in opposite direction. it will run in same direction. motor will not run. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is near to 1. 0.25. Greater than 1. 0.5. near to 1. 0.25. Greater than 1. 0.5. 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°. Star side leads by 30°. Delta side leads by 30°. Star side lags by -30°. Delta side lags by -30°. Star side leads by 30°. Delta side leads by 30°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop induction motor torque. DC motor torque. induction generator torque. synchronous motor torque. induction motor torque. DC motor torque. induction generator torque. synchronous motor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of slip rings in 3-phase synchronous motor will be 1 3 or 4 0 2 1 3 or 4 0 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field? Slip speed None of these Synchronous speed Zero Slip speed None of these Synchronous speed Zero ANSWER DOWNLOAD EXAMIANS APP
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