Electrical Engineering : Dc Motors QUESTIONS AND ANSWERS :: part2 : 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.The current drawn by the armature of D.C. motor is directly proportional to |
| the torque required |
| the speed of the motor |
| the voltage across the terminals |
| none of the above |
2.The power mentioned on the name plate of an electric motor indicates |
| the power drawn in kW |
| the power drawn in kVA |
| the gross power |
| the output power available at the shaft |
3.The speed of a D.C. series motor is |
| proportional to the armature current |
| proportional to the square of the armature current |
| proportional to field current |
| inversely proportional to the armature current |
4.The ratio of starting torque to full-load torque is least in case of |
| series motors |
| shunt motors |
| compound motors |
| none of the above |
5.In D.C. motor which of the following can sustain the maximum temperature rise? |
| Slip rings |
| Commutator |
| Field winding |
| Armature winding |
More Dc Motors QUESTIONS AND ANSWERS available in next pages
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