DC Motors D.C. generators are normally designed for maximum efficiency around Full load All of these Rated r.p.m. Rated voltage Full load All of these Rated r.p.m. Rated voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors In the dc motor the iron losses occur in Armature Field Commutator Brushes Armature Field Commutator Brushes ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is best suited for driving Machine tools Shear and punches Cranes and hoists None of the listed here Machine tools Shear and punches Cranes and hoists None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The main disadvantage of the Ward-Leonard control method is High initial cost All of these High maintenance cost Low efficiency at high loads High initial cost All of these High maintenance cost Low efficiency at high loads ANSWER DOWNLOAD EXAMIANS APP
DC Motors Where D.C. motor of H.P. 12 or more requires frequent starting, stopping, reversing and speed control Four point starter is used Three point starter is used All above can be used Drum type controller is used Four point starter is used Three point starter is used All above can be used Drum type controller is used ANSWER DOWNLOAD EXAMIANS APP
DC Motors Small dc motors up to 5 HP usually have 4 poles 8 poles 2 poles 6 poles 4 poles 8 poles 2 poles 6 poles ANSWER DOWNLOAD EXAMIANS APP
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