Karnatak Law Society’s
Vishwanathrao Deshpande Rural Institute of Technology Haliyal-581329
Department of Electronics & Communication Engg.
Internal Assessment - I
th
Sem:4 (A&B)
Date: 08/05/2020
Subject: Control systems
Time: 09:30 to 10:30 am
Subject code: 18EC43
Maximum Marks: 30
NOTE: All Questions are compulsory
Q
No
1
2
3
4
PART A
In an open loop control system
(a) Output is independent of control input
(b) Output is dependent on control input
(c) Only system parameters have effect on the control output
(d) None of the above
A car is running at a constant speed of 50 km/h, which of the following
is the feedback element for the driver ?
(a) Clutch
(b) (b) Eyes
(c) (c) Needle of the speedometer
(d) (d) Steering wheel
(e) (e) None of the above
A good control system has all the following features except
a) good stability
b) (b) slow response
c) (c) good accuracy
d) (d) sufficient power handling capacity
What mathematical model permits easy interconnection of physical
systems?
Differential Equation
State Space Model
Transfer Function
All of the above
5
A
B
C
D
MARKS
CLO
BLT
1
1
L1
1
1
L1
1
1
L1
1
1
L1
1
2
L1
6
1
2
L2
1
2
L2
A
B
C
D
7
A
B
C
D
8
1
2
L2
1
2
L2
A
B
C
D
9
A
B
C
D
10
1
2
L2
A
B
C
D
Q
No
PART B
MARKS
CLO
BLT
Define open loop and closed loop system.Give two Examples for each
1
2
1
L1
2
Define Control System.List five classifications of control system
2
1
L1
3
2
2
L1
4
Define (i) Forward path (ii) self loop(iii) Non touching loop
Describe any three requirements of good control system
2
2
L1
5
list out any three difference between open loop and closed loop system
2
2
L1
Q
No
PART C
MARKS
CLO
BLT
Draw the mechanical network for the system shown in fig. Write the
equations of performance & draw its analogous ckt based on F-I
analogy. K is spring constant and fv is damping coefficient (same as like
B)
1
5
1
L3
5
2
L3
Find Transfer function C/R
2