Electrical Machines Ward Leonard control provides speed control above rated speed. in one direction only. in both direction. below rated speed. above rated speed. in one direction only. in both direction. below rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used. none of above. any of above method. Ward Leonard control. rheostatic control. none of above. any of above method. Ward Leonard control. rheostatic control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve low starting torque. high efficiency. reduced size. quick acceleration. low starting torque. high efficiency. reduced size. quick acceleration. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the space distribution of air-gap flux density wave at no load is co- sinusoidal rectangular flat-topped sinusoidal co- sinusoidal rectangular flat-topped sinusoidal ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC series generator, the terminal voltage with increase in load will remain nearly constant increase gradually and then stay at rated voltage increase to rated voltage and then may decrease decrease remain nearly constant increase gradually and then stay at rated voltage increase to rated voltage and then may decrease decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc series motor driving and electric train faces a constant power load. It is running at rated speed and rated voltage. If the speed has to be brought down to 0.25 p.u. the supply voltage has to be approximately brought down to 0.25 p.u 0.75 p.u 0.5 p.u 0.125 p.u 0.25 p.u 0.75 p.u 0.5 p.u 0.125 p.u ANSWER DOWNLOAD EXAMIANS APP
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