Electrical Engineering : Dc Motors QUESTIONS AND ANSWERS :: part1 : 6 to 10
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.The speed of a D.C. shunt motor more than its full-load speed can be obtained by |
| decreasing the field current |
| increasing the field current |
| decreasing the armature current |
| increasing the armature current |
7.A direct on line starter is used: for starting motors |
| iip to 5 H.P. |
| up to 10 H.P. |
| up to 15 H.P. |
| up to 20 H.P. |
8.By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor? |
| Frame |
| Shaft |
| Commutator |
| Stator |
9.These days D.C. motors are widely used in |
| pumping sets |
| air compressors |
| electric traction |
| machine shops |
10.To get the speed of D.C, motor below the normal without wastage of electrical energy is used. |
| Ward Leonard control |
| rheostatic control |
| any of the above method |
| none of the above method |
More Dc Motors QUESTIONS AND ANSWERS available in next pages
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