Two generators are running in parallel. One of the generators may run as motor for which of the following reasons ?

Related Mcqs:

According to Fleming’s right-hand rule for finding the direction of induced e.m.f., when middle finger points in the direction of induced e.m.f., forefinger will point in the direction of____________?

A. motion of conductor B. lines of force C. either of the above D. none of the above...

If a D.C. generator fails to build up the probable cause could not be_____________?

A. imperfect brush contact B. field resistance less than the critical resistance C. no residual magnetism in the generator D. faulty shunt connections tending to reduce the residual magnetism...

Armature coil is short circuited by brushes when it lies_____________?

A. along neutral axis B. along field axis C. in any of the above positions D. in none of the above positions...

D.C. generator generally preferred for charging automobile batteries is______________?

A. series generator B. shunt generator C. long shunt compound generator D. any of’the above...

The main factor which leads to unstable parallel operation of flat and over compounded generators is_____________?

A. their rising voltage characteristics B. unequal number of turns in their series field windings C. unequal speed regulation of their primemovers D. unequal series field resistances...