DC Generators
For the same rating, a dc machine has_______ an ac machines.

The same weight as
Less weight than
None of the listed here
More weight than

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DC Generators
When two D.C. generators are running in parallel an equalizer bar is used

To reduce the combined effect of armature reaction of both the machines
To increase the generated e.m.f.
To increase the series flux
So that the two identical machines will pass approximately equal currents to the load

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DC Generators
While applying Fleming's right-hand rule to and the direction of induced e.m.f., the thumb points towards

Direction of motion of conductor, if forefinger points along the lines of flux
Direction of induced e.m.f.
Direction of flux
Direction of motion of the conductor if forefinger points in the direction of generated e.m.f.

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