Code: A-11
Subject: CONTROL ENGINEERING
Time: 3 Hours
Max. Marks: 100
NOTE: There are 11 Questions in all.  
  • Question 1 is compulsory and carries 16 marks. Answer to Q. 1. must be written in the space provided for it in the answer book supplied and nowhere else.
  • Answer any THREE Questions each from Part I and Part II. Each of these questions carries 14 marks.
  • Any required data not explicitly given, may be suitably assumed and stated.
Q.1
 Choose the correct or best alternative in the following:
(2x8)
a.
The steady-state error of a feedback control system with an acceleration input becomes finite in a
(A) type 0 system.     (B) type 1 system.
(C) type 2 system.     (D) type 3 system.
b.
The Laplace transform of is _______.
(A)        (B)
(C)        (D) 
c.
 Considering the root locus diagram for a system with
,the meeting point of the asymptotes on the the real axis occurs at _________.
(A) -1.2        (B) -0.85
(C) -1.05      (D) -0.75

d.
 Figure 1 shows a circuit for which switch S is kept open for a long time and
then closed at t = 0. The dynamic equation governing the circuit will then be
___________.
 
(A)        (B) 
(C)         (D) 
e.
 Considering the unity feedback system of Fig. 2, the settling time of the resulting second order system for 2% tolerance band will be ________.
 
(A) 3.33
(B) 4.5
(C) 2.25
(D) 2.84
1
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