DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Slip rings Field winding Armature winding Commutator Slip rings Field winding Armature winding Commutator 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 Almost negligible Less than full-load current Rated full-load current More than full-load current Almost negligible Less than full-load current Rated full-load current More than full-load current ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Eddy current losses Copper losses Windage losses Hysteresis losses Eddy current losses Copper losses Windage losses Hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors When the speed of dc motor increases, its armature current Increases Remains same Decreases None of the listed here Increases Remains same Decreases None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Plugging Dynamic braking None of these Regenerative Plugging Dynamic braking None of these Regenerative ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? None of these Regenerative braking Rheostat braking Plugging None of these Regenerative braking Rheostat braking Plugging ANSWER DOWNLOAD EXAMIANS APP
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