DC Motors A dc series motor is best suited for driving Shear and punches None of the listed here Machine tools Cranes and hoists Shear and punches None of the listed here Machine tools Cranes and hoists ANSWER DOWNLOAD EXAMIANS APP
DC Motors The direction of rotation of a D.C. series motor can be changed by None of these Interchanging field terminals Either of (A) and (B) above Interchanging supply terminals None of these Interchanging field terminals Either of (A) and (B) above Interchanging supply terminals ANSWER DOWNLOAD EXAMIANS APP
DC Motors The main disadvantage of the Ward-Leonard control method is All of these High initial cost High maintenance cost Low efficiency at high loads All of these High initial cost High maintenance cost Low efficiency at high loads ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the supply voltage for a D.C. motor is increased, which of the following will decrease? Operating speed All of these Full-load current Starting torque Operating speed All of these Full-load current Starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. Twice One-third None of the listed here Half Twice One-third None of the listed here Half 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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