Electrical Machines Which of the following motor used in hair dryers? Cage induction motor. Synchronous motors. Shaded pole IM. Split phase IM. Cage induction motor. Synchronous motors. Shaded pole IM. Split phase IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Why are capacitors used with large AC induction motor? Improve power level. Improve current level. Improve power factor. Improve voltage level. Improve power level. Improve current level. Improve power factor. Improve voltage level. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increase in speed of DC motor Back emf falls and line current increase. Back emf increase but line current falls. Both back emf as well as line current increase. Both back emf as well as line current fall. Back emf falls and line current increase. Back emf increase but line current falls. Both back emf as well as line current increase. Both back emf as well as line current fall. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is very effective for differential compound motors. series motors. shunt motors. separately excited motors. differential compound motors. series motors. shunt motors. separately excited motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an additional resistance is connected in series with a DC series motor operating at rated speed, the speed of the motor will Remain unaltered. Oscillate around the normal speed. Increase. Reduce. Remain unaltered. Oscillate around the normal speed. Increase. Reduce. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is Greater than 1. near to 1. 0.25. 0.5. Greater than 1. near to 1. 0.25. 0.5. ANSWER DOWNLOAD EXAMIANS APP
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