Chapter 2 D.C. MACHINE AS A GENERATOR MCQs

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1. . An electrical generator is a machine which converts:





2. . The d.c generator works on the principle of:





3. . Fleming’s right hand rule is used for:





4. . The direction of current in a d.c. generator can be determined by:





5. . The induced e.m.f. in a d.c generator depends upon:





6. . Armature current from the DC generator is supplied to the external circuit through:





7. . If slip rings are used instead of commutator in a d.c. generator, then output will be:





8. . A well designed d.c. generator has overall efficiency:





9. . A d.c generator can be used as:





10. . A basic (single or simple) loop generator consists of:





11. . A single (or simple) loop generator has carbon brushes:





12. . For a lap wound d.c. generator, induced e.m.f. is given by:





13. . For a wave wound d.c. generator, induced e.m.f. is given by:





14. . A lap wound generator consists of 100 conductors, flux per pole is 0.1 Wb and induced e.m.f. is 220 volt, speed of generator will be:





15. . A d.c. generator whose field winding is supplied from an independent external d.c. source is called:





16. . A d.c. generator whose field magnet winding is excited by itself is called:





17. . Field winding of separately excited d.c. generator is excited by:





18. . Field winding of self excited d.c. generator is excited by:





19. . Example(s) of self excited d.c. generator is/are:





20. . A generator in which the field winding is connected parallel to the armature is called:





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