FAB35803 Control System Assignment Questions 2026 | Universiti Kuala Lumpur

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University	Universiti Kuala Lumpur (UniKL)
Subject	FAB35803 Control System

FAB35803 Assignment Questions

Learning Outcomes

No.	Course Learning Outcomes Distribution		Questions	Total Marks
CLO 1	Apply control system’s classical tools in control system analysis (C4)	√	4, 1	20
CLO 2	Analyze the frequency response of linear feedback system using graphical plot techniques (C4)	√	2	12
CLO 3	Demonstrate computer simulation, test and measurement technique in control system time response performance analysis (P4)
	Total marks			32

Question 1 (10 marks)

The closed-loop transfer function of a system is given as below. Find the number of closed-loop poles located in the right half-plane, left half-plane, and on the 𝑗𝜔-axis by using Routh-Hurwitz criterion. Conclude the system stability.

(10 marks, C3)

20 / 𝑇(𝑠)=𝑠5+4𝑠4+3𝑠3+12𝑠2+5𝑠+6

Question 2 (10 marks)

Figure 1 shows the block diagram of a system, determine:

(a) The open-loop transfer function and the system type

(4 marks, C3)

(b) The static error constants (𝐾_𝑝, 𝐾_𝑣 and 𝐾_𝑎).

(3 marks, C3)

FAB35803 Assignment Questions 2 Figure 1

Figure 1: The block diagram of a system

Question 3 (12 marks)

Consider a unity feedback system shown in Figure 2.

FAB35803 Assignment Question 3 Figure 2

Figure 2: A unity feedback system

(a) Plot the asymptotic Bode plot for the system if 𝐾 = 200. From the plot, determine the gain margin (𝐺𝑀), phase margin (𝑃𝑀), gain cross over frequency (ω_gco), phase cross over frequency (ω_pco), and hence state and justify the stability of the system.

(9 marks, C4)

(b) Find 𝐾 for the system to yield 𝐺𝑀 = 30𝑑𝐵

(3 marks, C4)

End Of Questions