DC Motors If the supply voltage for a D.C. motor is increased, which of the following will decrease? Operating speed Starting torque All of these Full-load current Operating speed Starting torque All of these Full-load current ANSWER DOWNLOAD EXAMIANS APP
DC Motors During rheostat braking of dc series motor None of the listed here Motor is run at reduced speed Motor is run as a generator Motor is reversed in direction None of the listed here Motor is run at reduced speed Motor is run as a generator Motor is reversed in direction ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 4.0 1.0 0.5 2.0 4.0 1.0 0.5 2.0 ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a _____ motor is practically constant. Differentially compounded Series Cumulatively compounded Shunt Differentially compounded Series Cumulatively compounded Shunt ANSWER DOWNLOAD EXAMIANS APP
DC Motors By putting controller resistance in series with the armature of a dc motor, we can obtain speeds Above the normal speed only Above as well as below the normal speed Below the normal speed only None of the listed here Above the normal speed only Above as well as below the normal speed Below the normal speed only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors A three point starter is considered suitable for All D.C. motors Shunt as well as compound motors Shunt, compound and series motors Shunt motors All D.C. motors Shunt as well as compound motors Shunt, compound and series motors Shunt motors ANSWER DOWNLOAD EXAMIANS APP
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