D.C. generators are normally designed for maximum efficiency around_____________?

Related Mcqs:

In a D.C. shunt motor, speed is______________?

A. independent of armature current B. directly proportional to the armature current C. proportional to the square of the current D. inversely proportional to the armature current...

In which of the following applications D.C. series motor is invariably tried?

A. Starter for a car B. Drive for a water pump C. Fan motor D. Motor operation in A.C. or D.C...

Which of the following motor is preferred for operation in highly explosive atmosphere ?

A. Series motor B. Shunt motor C. Air motor D. Battery operated motor...

If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will_________?

A. increase B. decrease C. remain same D. become zero...

When the armature of a D.C. motor rotates, e.m.f. induced is___________?

A. self-induced e.m.f. B. mutually induced e.m.f. C. back e.m.f D. none of the above...