Q. Where diverters are used?

View solution

Q. What will happen to the speed of a series motor if the temperature of armature resistance is increased?

View solution

Q. For which speed control method we get minimum efficiency?

View solution

Q. The speed of a DC motor can be varied by changing ______________

View solution

Q. For constant torque drive which of the following speed control method is preferred?

View solution

Q. When the armature of a DC motor rotates, emf induced is in machine is called as ___________

View solution

Q. Which of the following method is used for DC motor with 12+ HP requiring frequent start, stop, speed reversal?

View solution

Q. Flux density distribution is distorted by armature control method.

View solution

Q. In rheostatic series control method of armature we add ____________

View solution

Q. By series armature resistance method, we can get _________________________

View solution

Q. Consider the armature control method, where 10 Ω resistance is connected in series with armature in first case. For second case resistance value is changed 100 Ω. Then ____________

View solution

Q. Speed regulation of armature series control method is __________

View solution

Q. In shunted rheostatic armature control method ______________

View solution

Q. Which of the following is correct statement?

View solution

Q. By series parallel method of armature control how many different speeds are possible?

View solution

Q. Which method is best for series traction motors?

View solution

Q. Ward Leonard method is ___________

View solution

Q. Which of the following component is not used in Ward Leonard method?

View solution

Q. In Ward Leonard speed control method for lowering the speed of the motor ______________

View solution

Q. Reducing the armature voltage will give us _______________

View solution