Electrical Engineering : Dc Motors QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.In a D.C. shunt motor, speed is |
| independent of armature current |
| directly proportional to the armature current |
| proportional to the square of the current |
| inversely proportional to the armature current |
2.The type of D.C. motor used for shears and punches is |
| shunt motor |
| series motor |
| differential compoutid D.C. motor |
| cumulative compound D.C. motor |
3.If a D.C. motor is connected across the A.C. supply it will |
| run at normal speed |
| not run |
| run at lower speed |
| burn due to heat produced in the field winding by .eddy currents |
4.In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be |
| almost negligible |
| rated full-load current |
| less than full-load current |
| more than full-load current |
5.Differentially compound D.C. motors can find applications requiring |
| high starting torque |
| low starting torque |
| variable speed |
| frequent on-off cycles |
More Dc Motors QUESTIONS AND ANSWERS available in next pages
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