# Sample Paper for Control Systems Engineering

Control simply means to regulate, direct or command a system so that the desired objective is obtained as a result and System is an arrangement of physical component that are connected in such a manner so as to form an entire unit to obtain a certain object. On combining these two definitions, **Control System** forms an arrangement of different physical elements connected in such a manner so as to regulate , direct itself in order to obtain a certain objective. Control System is one of the most important topic in the B. Tech Syllabus of **Electronics and Communication Engineering** Students as it covers all the necessary facts and detailed mechanism that are used in our day to day life in terms of various machines. Thus in this post we have tried to made available Sample Paper for **Control Systems Engineering **to help students to secure good marks in this subject.

**Sample Paper for Control Systems Engineering**

**CONTROL SYSTEM EENGEERING**

**Paper : ECE-302-E**

**Time Allowed : 3 hours Maximum Marks : 100**

**Note:** Instruction are given to each specific Section.

**SECTION-A[5 Marks Questions]**

* Instruction:* Attempt any three questions from this Section.

** Question 1.** Compare and Contrast Open loop and Closed loop Control Systems.

**Explain the terminologies associated with Signal Flow Graphs with a suitable example.**

**Question**2.**Discuss the working of a stepper model and derive a suitable mathematical model for it.**

**Question**3.**Discuss the effect of feedback on sensitivity.**

**Question**4.**SECTION-B[5 Marks Questions]**

* Instruction:* Attempt any three questions from this Section.

** Question 5.** Explain the second order time domain specifications of a Control System.

**Question 6.**Find the time domain specifications for the system given as:

**C(s)/ R(s) = (s^2 +2s+3) / (s^2 + 5s+9)**

** Question 7.** Explain frequency domain specifications of a third order control system.

**Question 8.**Sketch the root locus for a system having transfer function as

**G(s) = k(s+1) / (s+3)**

**SECTION-C [10 Marks Questions]**

* Instruction:* Attempt any three questions from this Section.

**Question**** 9.** Explain the Routh Hurwitz Criteria for determining the stability of a system.

** Question 10.** Explain the correlation between time domain and frequency domain responses.

**The Open loop transfer function of a system is given as follow. And Comment on the stability of the system using Nquist Plot.**

**Question**11.**G(s) = k/(s+1)**

**Distinguish between order and type of a system.**

**Question**12.**SECTION-D [10 Marks Questions]**

* Instruction:* Attempt any four questions from this Section.

** Question 13.** Find the transfer function for the Bode Plot given in the figure (a)

**Question **14. Obtain the transfer function from following Block Diagram representations.

**a)** Find the transfer function for the block diagram shown as below:

**Question 15.** **a)** Calculate the Root Locus for the closed loop system shown in figure (c).

**b)** For the transfer function below, draw a block diagram with no more than one power of the Laplace transform variable “*s*” in each box.

**Question 16.** **a)** Calculate the suitable transfer function for the mechanical system given in figure:

**b)** Write the differential equations of motion for the following system

**Question 17.** **a)** Write the following differential equation in state equation format.

**b)** Given the state equations below, write the transfer function for this system. Assume the output variable in the transfer function is y(t) which is equal to the state variable x_{1}.

**To Download pdf of above Control System Question Paper, follow**

**You may also like to visit:**

**Open Loop and Closed Loop Control System****Principles of Communication Questions with Answers****Sample Question Paper of Basic Electronics**

**Your thoughts/feedback are always appreciated for the further improvement.**

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### 12 Responses to Sample Paper for Control Systems Engineering

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B tech

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