DC Motors The running speed of a dc series motor is basically determined by Load Armature reaction Field excitation None of the listed here Load Armature reaction Field excitation None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Where D.C. motor of H.P. 12 or more requires frequent starting, stopping, reversing and speed control Three point starter is used Four point starter is used Drum type controller is used All above can be used Three point starter is used Four point starter is used Drum type controller is used All above can be used ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a series motor at no load is Infinity 1000 rpm 4000 rpm 2000 rpm Infinity 1000 rpm 4000 rpm 2000 rpm ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Slip rings Field winding Commutator Armature winding Slip rings Field winding Commutator Armature winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors A series motor will over speed when The load is increase The field is opened Load is removed The armature circuit is opened. The load is increase The field is opened Load is removed The armature circuit is opened. ANSWER DOWNLOAD EXAMIANS APP
DC Motors By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor? Commutator Shaft Stator Frame Commutator Shaft Stator Frame ANSWER DOWNLOAD EXAMIANS APP
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