DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Decrease Remains same Become zero Increase Decrease Remains same Become zero Increase ANSWER DOWNLOAD EXAMIANS APP
DC Motors The greatest percentage of power loss in a dc motor is due to Friction loss Windage loss Copper loss Core loss Friction loss Windage loss Copper loss Core loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc shunt motors are used for driving Hoist Cranes Machine tools Trains Hoist Cranes Machine tools Trains ANSWER DOWNLOAD EXAMIANS APP
DC Motors When two dc series motor are commected in parallel, the resultant speed is Loss than the normal speed Zero More than the normal speed Normal speed Loss than the normal speed Zero More than the normal speed Normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. generators are normally designed for maximum efficiency around Rated voltage All of these Full load Rated r.p.m. Rated voltage All of these Full load Rated r.p.m. ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 0.5 4.0 2.0 1.0 0.5 4.0 2.0 1.0 ANSWER DOWNLOAD EXAMIANS APP
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