DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Hysteresis losses Windage losses Copper losses Eddy current losses Hysteresis losses Windage losses Copper losses Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is comnected across the AC supply it will Not run Run at normal speed Run at lower speed Burn due to heat produced in the field winding by eddy currents Not run Run at normal speed Run at lower speed Burn due to heat produced in the field winding by eddy currents ANSWER DOWNLOAD EXAMIANS APP
DC Motors When two dc series motor are commected in parallel, the resultant speed is More than the normal speed Normal speed Loss than the normal speed Zero More than the normal speed Normal speed Loss than the normal speed Zero ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be More than full-load current Almost negligible Rated full-load current Less than full-load current More than full-load current Almost negligible Rated full-load current Less than full-load current ANSWER DOWNLOAD EXAMIANS APP
DC Motors For constant torque drive which speed control method is preferred? Armature voltage control Shunt armature control Field control Mechanical loading system Armature voltage control Shunt armature control Field control Mechanical loading system ANSWER DOWNLOAD EXAMIANS APP
DC Motors The iron loss in dc motor depends on Both flux and speed Speed only None of the listed here Flux only Both flux and speed Speed only None of the listed here Flux only ANSWER DOWNLOAD EXAMIANS APP
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