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Electrician
Electrician Set-1
DC Generators
39

DC Generators MCQ - Electrician (Set-1) with Answers

39) The simplest way to shift load from one D.C. shunt generator running in parallel with another is to

adjust their field rheostats

insert resistance in their armature circuits

adjust speeds of their prime movers

use equalizer connections

Answer is:

adjust their field rheostats

DC Generators MCQ - Electrician (Set-1) with Answers

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Related DC Generators MCQ - Electrician (Set-1) with Answers

40) In case of parallel operation of D.C. compound wound generators, for proper division of load, from no load to full load, it is essential that they should have the same

kW output rating

percentage regulation

series field resistance

speed of operation

Answer is:

percentage regulation

41) In parallel operation of two D.C. compound generators provided with interpoles, the equalizing bar must be connected to

interpole fields only

series fields only

Junction of series and interpole fields

none of the above

Answer is:

Junction of series and interpole fields

42) The main function of an equalizer bar is to make the parallel operation of two over compounded D.C. generators

stable

possible

regular

smooth

Answer is:

stable

43) The main factor that leads to unstable parallel operation of flat or over compounded D.C. generator is

their rising voltage characteristics

unequal series field resistances

unequal speed regulation of their prime movers

their drooping voltage characteristics

Answer is:

their rising voltage characteristics

DC Generators MCQ - Electrician (Set-1) with Answers

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