Electrical Engineering Mcqs — Test 15

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Question 1

Speed control by Ward Leonard method gives uniform speed variation_____________?

Question 2

Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be_____________?

Question 3

Following motor is used where high starting torque and wide speed range control is required?

Question 4

In a differentially compounded D.C. motor, if shunt field suddenly opens____________?

Question 5

The condition for maximum power in case of D.C. motor is______________?

Question 6

Buses, trains, trolleys, hoists, cranes require high starting torque and therefore make use of_____________?

Question 7

Which of the following motor has the poorest speed regulation ?

Question 8

As -the load is increased the speed of D.C. shunt motor will____________?

Question 9

The armature torque of the D.C. shunt motor is proportional to____________?

Question 10

Which of the following method of speed control of D.C. machine will offer minimum efficiency ?