Why are the D.C. motors preferred for traction applications? Options: A . &nbspTorque and speed are inversely proportional to armature current B . &nbspTorque is proportional to armature current C . &nbspTorque is proportional to square root of armature current D . &nbspThe speed is inversely proportional to the torque and the torque is proportional to square of armature current

Why are the D.C. motors preferred for traction applications?

Question

Why are the D.C. motors preferred for traction applications?

Options:

A . Torque and speed are inversely proportional to armature current

B . Torque is proportional to armature current

C . Torque is proportional to square root of armature current

D . The speed is inversely proportional to the torque and the torque is proportional to square of armature current

Answer: Option D

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Question 1. D.C. generators are installed near the load centers to reduce....

Question 2. Sparking, is discouraged in a D.C. motor because....

Question 3. The losses occurring in a D.C. generator are given below. Which loss is likely to have highest proportion at rated load ....to have highest proportion at rated load of the generator?

Question 4. Which of the following load normally needs starting torque more than the rated torque?....

Question 5. D.C. shunt motors are used for driving....

Question 6. The condition for maximum power in case of D.C. motor is....

Question 7. Which of the following law/rule can he used to determine the direction of rotation of D.C. motor?....

Question 8. The speed of a D.C. motor can be varied by varying....

Question 9. Following motor is used where high starting torque and wide speed range control is required.....

Question 10. The current drawn by the armature of D.C. motor is directly proportional to....

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