DC Generators – Page 4 – HI MCQ!

To achieve sparkless commutation brushes of a D.O. generator are rocked ahead so as to bring them?

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Which of the following statements is incorrect in D.C. shunt generators about hysteresis loss?

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The terminal voltage of a series generator is 150 V when the load current is 5 A. If the load current is increased to 10 A, the terminal voltage will be?

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

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An external resistance added in the field of a D.C. shunt generator will?

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In a D.C. generator in case the resistance of the field winding is increased, then output voltage will?

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The rapid wear of brushes takes place due to?

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The e.m.f. induced in the armature of a shunt generator is 600V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be?

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Which of the following statement about D.C. generators is false?

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Brushes of D.C. machines are made of?

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