Electrical Engineering : Dc Generators QUESTIONS AND ANSWERS :: part4 : 16 to 20
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
16.The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except |
| armature reaction |
| armature resistance drop |
| field weakening due to armature reaction and armature |
| commutation |
17.An exciter for a turbo generator is a |
| separately excited generator |
| shunt generator |
| series generator |
| compound generator |
18.In a D.C. machine stray loss is the sum of |
| total copper loss and mechanical loss |
| armature copper loss and iron loss |
| shunt field copper loss and mechanical loss |
| iron loss and mechanical loss |
19.In a separately excited generator supplying rated load the armature reaction , |
| is always present |
| is always absent |
| may be sometimes present |
| none of the above |
20.The critical resistance of the D.C. generator is the resistance of |
| field |
| brushes |
| armature |
| load |
More Dc Generators QUESTIONS AND ANSWERS available in next pages
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