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# Deemed University 2009 A.M.I.E.T.E Electronics & Communication Engineering Control engineering – et (old scheme) - Question Paper

Tuesday, 30 April 2013 04:00Web

AMIETE – ET (OLD SCHEME)

Code: AE11 Subject: CONTROL ENGINEERING
Time: three Hours Max. Marks: 100

NOTE: There are nine ques. in all.
· ques. one is compulsory and carries 20 marks. ans to Q. 1. must be written in the space given for it in the ans book supplied and nowhere else.
· Out of the remaining 8 ques. ans any 5 ques.. every ques. carries 16 marks.
· Any needed data not explicitly given, may be suitably presumed and said.

Q.1 select the accurate or the best option in the following: (210)

a. In a closed loop feedback control system, the positive feedback means

(A) the output is feedback so that it subtracts from reference input in order to provide actuating signal.
(B) the output is feedback so that it adds to reference input in order to provide actuating signal.
(C) both (A) & (B).
(D) None of these.

b. Linearized model of around two is

(A) . (B) .
(C) . (D) .

c. The concept of transfer function applies to

(A) linear time varying systems.
(B) linear and non-linear systems.
(C) linear time invariant systems.
(D) only to MIMO systems.

d. The position of a moving object of constant mass M and force f applied are related to M , the transfer function of the system is
(A) . (B) .
(C) . (D) Ms.

e. Consider function where F(s) = Laplace transform of f(t). The final value of f(t) is equal to

(A) one. (B) infinity.
(C) zero. (D) none of the above.

f. If the root loci of a closed loop system separates at a point ranging from 2 open loop poles, the point is known as
(A) break away point. (B) shift point.
(C) crossover point. (D) transition point.