Page No. 286
In D.C. generators, the cause of rapid brush wear may be___________?
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The bearings used to support the rotor shafts are generally______________?
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In lap winding, the number of brushes is always_____________?
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In a four-pole D.C. machine____________?
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A separately excited generator as compared to a self-excited generator_____________?
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Ward Leonard method of speed control is basically a______________?
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Which of the following test can be performed on DC series motor?
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Armature reaction in dc motor results___________?
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In a DC motor the inter-pole winding is connected in________________?
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A dc series motor should not be started on no load because it would___________?
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