DC Motors By flux control method of speed control of a dc shunt motor, we can obtain speeds. Above the normal speed only None of the listed here Below the normal speed only Above as well as below the normal speed Above the normal speed only None of the listed here Below the normal speed only Above as well as below the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. machines the residual magnetism is of the order of 2 to 3 percent 50 to 75 percent 10 to 15 percent 20 to 25 percent 2 to 3 percent 50 to 75 percent 10 to 15 percent 20 to 25 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive motor vibration is caused by Too much brush tension Open armature coil Bent shaft Worn bearings Too much brush tension Open armature coil Bent shaft Worn bearings ANSWER DOWNLOAD EXAMIANS APP
DC Motors In the dc motor the iron losses occur in Commutator Field Brushes Armature Commutator Field Brushes Armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. shunt motors as load is reduced The speed will reduce The speed will increase abruptly The speed will remain almost/constant The speed will increase in proportion to reduction in load The speed will reduce The speed will increase abruptly The speed will remain almost/constant The speed will increase in proportion to reduction in load ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which D.C. motor is generally preferred for cranes and hoists? Series motor Differentially compounded motor Cumulatively compounded motor Shunt motor Series motor Differentially compounded motor Cumulatively compounded motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
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