Reg No.: Name:
00000EC409121903
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh Semester B.Tech Degree Examination (Regular and Supplementary), December 2020

Course Code: EC409

Course Name: CONTROL SYSTEMS

Max. Marks: 100 Duration: 3 Hours
(Note: Provide normal and semilog graph sheet.)
PART A
Answer any two full questions, each carries 15 marks. Marks

1 a) Determine the transfer function Xj(s)/F(s) for the system shown below. (8)

K | 8

(7)

2 a) A positional control system with velocity feedback is shown. What is the response c(t) to (8)

unit step input? Given that ¢ = 0.5. Calculate rise time, peak time and settling time.

R(s)