M

Mr. Dubey • 100.64K Points
Coach

Q. Why does DC motor sometimes run too fast when under-loaded?

  • (A) due to weak field
  • (B) due to high line voltage
  • (C) due to brush-shifted to neutral
  • (D) all of the mentioned
Share

No solution found for this question.
Add Solution and get +2 points.

You must be Logged in to update hint/solution

Discusssion

Login to discuss.

Related MCQs

Q. One of more electronic tubes are used in the circuitry of a VTVM for

Q. The input to a 3-ph induction motor is 50KW. The stator losses amount to 800W. The mechanical power developed (slip = 3%)

Q. Slotting can be performed more effectively by milling machine.

Q. Which of the following viewing conditions is most desirable for interpreting radiographic film?

Q. In the above problem, acceleration of crooshead at 30o phase equals

Q. In case of screw conveyors, cut flights are used for

Q. Which of the following requirement is satisfied by a phase change of the first order?

Q. The efficiency gain follows the law of diminishing return with the increase in the number of heaters.

Q. A common application of an aluminium block containing quench cracks is to:

Q. When pulverised fuel is not used the equipment used for feeding coal to the boiler is

Question analytics