Electrical Machines Which of the following motor is expensive for same Kw output rates? AC single phase motor. Induction motor. DC Shunt Motor Synchronous motor. AC single phase motor. Induction motor. DC Shunt Motor Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? armature mmf armature current All of these armature flux armature mmf armature current All of these armature flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating magnetic field is produced in an induction motor because of either stator winding or rotor winding. rotor winding. stator winding. None of these either stator winding or rotor winding. rotor winding. stator winding. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following load normally needs starting torque more than rated torque? Blowers. Conveyers. Centrifugal pumps. Air compressors. Blowers. Conveyers. Centrifugal pumps. Air compressors. 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. rotate in the same direction as before maintenance. get heated and damaged. rotate in direction opposite to that before maintenance. not start at all. rotate in the same direction as before maintenance. get heated and damaged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Counter emf of a DC motor exceeds supply voltage aids applied voltage. regulates its armature voltage. helps in energy conversion. exceeds supply voltage aids applied voltage. regulates its armature voltage. helps in energy conversion. ANSWER DOWNLOAD EXAMIANS APP
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