DC Motors By putting controller resistance in series with the armature of a dc motor, we can obtain speeds Above the normal speed only Below the normal speed only None of the listed here Above as well as below the normal speed Above the normal speed only Below the normal speed only None of the listed here Above as well as below the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Commutator Armature winding Field winding Slip rings Commutator Armature winding Field winding Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity? Field test Swinburne's test Brake test Hopkinson's test Field test Swinburne's test Brake test Hopkinson's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. motor is to be selected for conveyors, which rriotor would be preferred ? Cumulative compound motor Differentially compound motor Series motor Shunt motor Cumulative compound motor Differentially compound motor Series motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Field's test Brake test Swinburne's test Hopkinson's test Field's test Brake test Swinburne's test Hopkinson's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is best suited for driving Shear and punches Cranes and hoists None of the listed here Machine tools Shear and punches Cranes and hoists None of the listed here Machine tools ANSWER DOWNLOAD EXAMIANS APP