DC Motors The back emf in a dc motor ______ Opposes the applied voltage Aids the applied voltage Aids the armature current None of the listed here Opposes the applied voltage Aids the applied voltage Aids the armature current None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following application requires high starting torque? Lathe machine Centrifugal pump Air blower Locomotive Lathe machine Centrifugal pump Air blower Locomotive ANSWER DOWNLOAD EXAMIANS APP
DC Motors The maximum end play of a motor is about 2 mm 10 mm 6 mm 0.4 mm 2 mm 10 mm 6 mm 0.4 mm ANSWER DOWNLOAD EXAMIANS APP
DC Motors ______ motor has the best speed regulation. Series Cummulative compounded Shunt Differentially compounded Series Cummulative compounded Shunt Differentially compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which D.C. motor is generally preferred for cranes and hoists? Shunt motor Differentially compounded motor Cumulatively compounded motor Series motor Shunt motor Differentially compounded motor Cumulatively compounded motor Series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The variable resistor shunting the field of a dc series motor is called a Voltage regulator Armature divertor Potential divider Field divertor Voltage regulator Armature divertor Potential divider Field divertor ANSWER DOWNLOAD EXAMIANS APP
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