Multiple choice questions on dc generator # 17

                           Hi friends, these are objectives on electrical engineering emphasis on dc generator check out and comment if you have any doubts......

objectives on electrical engineering 17



1) The voltmeter connected across a generator reads voltage same at no-load and at full load (rated). The generator is of the type
A) shunt generator
B) series generator
C) Level compound
D) short-shunt compound

Ans:C

2) Which of the following dc generators will be in position to build up without any residual magnetism in the field?
A) series
B) shunt
C) separately excited
D) compound

Ans:C

3) which of the following dc generator will have negligible terminal voltage on no load?
A) shunt
B) series
C) compound
D) none

Ans:B

4) The voltage regulation of a dc generator at full load being zero implies that the generator is
A) shunt-connected
B) differentially compounded
C) cumulatively compounded
D) series-connected

Ans:C

5) Over or under compounding of a dc generator is achieved by
A) shunting more or less current from the shunt field
B) shunting more or less current from the series field
C) connecting it as long shunt
D) connecting it as short shunt

Ans:B

6) Which of the following dc generator has rising V-I characteristics?
A) series
B) shunt
C) compound
D) none

Ans:A

7) In comparison to self excited generator, a separately excited generator
A) is more reliable
B) is amenable to better voltage regulation
C) has exciting current independent of load characteristic
D) has all of the above features

Ans:D

8) An exciter for turbo generator is a dc .................... generator
A) shunt
B) series
C) compound
D) separately excited

Ans:A

9) A dc generator will be flat compounded if
A) its terminal voltage remains constant irrespective of the load current supplied by the generator
B) generated voltage is in proportion to load current
C) the generator is capable of producing higher voltage at light load
D) terminal voltage increases slightly with the load

Ans:A

10) The ................... generator has the poorest voltage regulation
A) shunt
B) over compounded
C) under compounded
D) differential compounded

Ans:D

                     If you feel this post helpful please share with your friends and subscribe for my latest updates..      


Previous
Next Post »