# Electrical Engineering Questions And Answers :: Dc Motors: part1

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Electrical Engineering : Dc Motors QUESTIONS AND ANSWERS :: part1 : 11 to 15

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

 11.According to Fleming's left-hand rule, when the forefinger points in the direction of the field or flux, the middle finger will point in the direction of current in the conductor aovtaat of conductor resultant force on conductor none of the above current in the conductor aovtaat of conductor ANSWER : If the field of a D.C. shunt motor gets opened while motor is running Explanation :
 12.In case of D.C. shunt motors the speed is dependent on back e.m.f. only because back e.m.f. is equal to armature drop armature drop is negligible flux is proportional to armature current flux is practically constant in D:C. shunt motors ANSWER : : flux is practically constant in D:C. shunt motors Explanation :
 13.A D.C. series motor is that which has its field winding consisting of thick wire and less turns has a poor torque can be started easily without load has almost constant speed ANSWER : : has its field winding consisting of thick wire and less turns Explanation :
 14.When two D.C. series motors are connected in parallel, the resultant speed is more than the normal speed loss than the normal speed normal speed zero ANSWER : : normal speed Explanation :
 15.If a D.C. motor is to be selected for conveyors, which rriotor would be preferred ? Series motor Shunt motor Differentially compound motor Cumulative compound motor ANSWER : : Series motor Explanation :

More Dc Motors QUESTIONS AND ANSWERS available in next pages

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