Chemical Effect of Electric Current Engineering MCQ Question Answers

21) If the gain of the open loop system is doubled, the gain margin of the system is

a) not affected

b) double

c) halved

d) one fourth of original value

View Answer
Option – c)

22) Which one of the following is a disadvantage of proportional controller ?

a) it destabilises the system

b) it producer offset

c) it makes response faster

d) it has very simple implementation

View Answer
Option – b)

23) How many roots with positive real parts do the equation s3 + s2 – s + 1 = 0 have ?

a) zero

b) One

c) two

d) three

View Answer
Option – c)

Good Luck!!

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