Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity ?

Related Mcqs:

Starters are used with D.C. motors because______________?

A. these motors have high starting torque B. these motors are not self-starting C. back e.m.f. of these motors is zero initially D. to restrict armature current as there is no back e.m.f. while starting...

For starting a D.C. motor a starter is required because___________?

A. it limits the speed of the motor B. it limits the starting current to a safe value C. it starts the motor D. none of the above...

For the same H.P. rating and full load speed, following motor has poor starting torque_____________?

A. shunt B. series C. differentially compounded D. cumulativelyc’ompounded...

Which of the following motors is most suitable for signalling devices and many kinds of timers ?

A. D.C. shunt motor B. D.C. series motor C. Induction motor D. Reluctance motor...

One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven_______________?

A. runs as a generator B. does not run as a generator C. also runs as a motor comes to stop after sometime...