DC Motors Which method of braking is generally used in elevators? Regenerative braking Plugging Rheostat braking None of these Regenerative braking Plugging Rheostat braking None of these 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. Half Twice One-third None of the listed here Half Twice One-third None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The greatest percentage of power loss in a dc motor is due to Friction loss Core loss Windage loss Copper loss Friction loss Core loss Windage loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating pole winding is connected in Parallel with the armature None of the listed here Series with the armature Series-parallel with the armature Parallel with the armature None of the listed here Series with the armature Series-parallel with the armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc shunt motors are used for driving Trains Cranes Machine tools Hoist Trains Cranes Machine tools Hoist ANSWER DOWNLOAD EXAMIANS APP
DC Motors The main disadvantage of the Ward-Leonard control method is 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 High initial cost ANSWER DOWNLOAD EXAMIANS APP
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