Alternator Multiple Choice Questions and Answers

16. Salient pole type alternators are generally used on

   A.Low voltage alternators

   B.Hydrogen cooled primemovers

   C.High speed primemovers

   D.Low and medium speed primemovers

17. The speed of a salient pole machine is nearly

   A.500 r.p.m.

   B.1000 r.p.m.

   C.1500 r.p.m.

   D.3000 r.p.m.

18. Where the terminal voltage of an alternator falls on throwing of the load, it indicates that the load is purely

   A.Resistive

   B.Capacitive

   C.Inductive

   D.None of the above

19. Which of the following is a primemover

   A.Steam turbine

   B.Solar Energy

   C.Electric heater

   D.None of the above

20. In a large generator, dampers

   A.Reduce frequency fluctuations

   B.Reduce voltage fluctuations

   C.Increase stability

   D.None of the above

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