English
Hindi

Question

Download Solution PDF

The unique model of a system is

This question was previously asked in
UPPSC AE Electrical 29 May 2022 Official Paper I
Download PDF Attempt in App
View all UPPSC AE Papers >
  1. Block diagrams
  2. State variables
  3. Signal flow graphs
  4. Transfer function

Answer (Detailed Solution Below)

Option 4 : Transfer function
Free Tests
View all Free tests >
Free
UPPSC AE सामान्य हिन्दी Mock Test
20 Qs. 60 Marks 20 Mins
Start Now

Detailed Solution

Download Solution PDF

Transfer Function:

  • The transfer function of a system is defined as the ratio of the Laplace transform of output to the Laplace transform of input where all the initial conditions are zero.
  • The transfer function for the system is unique & it is applicable only for linear time-invariant (LTI) systems.

Signal flow graphs:

  • Signal flow graphs are used to find the transfer function of the control system by converting the block diagrams into signal flow graphs
  • It cannot be used for nonlinear systems.

Block diagrams:

  • A block diagram is used to represent a control system in diagram form.
  • Each element of the control system is represented with a block and the block is the symbolic representation of the transfer function of that element.

State variables:

  • A state variable is one of the sets of variables that are used to describe the mathematical "state" of a dynamical system.
  • The state variable method is used for analysis of time-variant systems.

Download Solution PDF
Latest UPPSC AE Updates

Last updated on Jun 13, 2025

-> UPPSC AE Mains Exam 2025 registration has been started. 

-> UPPSC AE Mains registration window is available till June 27. However, last date to send the documents is July 4. 

-> UPPSC AE result 2025 has been released for Prelims exam. 

-> UPPSC AE Answer Key 2025 has been uploaded on 23rd April 2025.

-> UPPSC AE Exam was conducted 20th April 2025 on its official website.

-> The UPPSC AE Exam Date 2025 has been released.

-> The Prelims & Mains exam will be conducted on 20th April & 28th September 2025 respectively.

-> A total of 604 vacancies have been released.

-> The applications must be submitted online between 17th December 2024 to 17th January 2025.

-> The selection process includes a written exam, interview, and document verification.

-> Candidates with a BE/B.Tech degree in the relevant discipline, between 21 to 40 years of age are eligible for this post.

Exams Tests Super Practice

More Closed Loop Control Systems Questions

Q1.A unity-gain negative-feedback control system has a loop-gain 𝐿(𝑠) given by \(\rm L(s)=\frac{6}{s(s-5)}\) The closed-loop system is ________
Q2.The input 𝑥(𝑡) to a system is related to its output 𝑦(𝑡) as   \(\rm \frac{dy(t)}{dt}+y(t)=3x(t-3)u(t-3)\) Here 𝑢(𝑡) represents a unit-step function. The transfer function of this system is ________ 
Q3.The roots of a system having a transfer function \(\rm G(s)=\frac{4(s+2)}{(s+3)(s+4)}\) will be:
Q4.Servomechanisms are ______ where the feedback signals are used to control position, speed, velocity, acceleration, etc.
Q5.Radar tracking systems, missile tracking systems and machine tool position control are applications of ______.
Q6.The following type of control system uses the concept of an open loop system as its forward path but has one or more feedback loops or paths between its output and its input.
Q7.Consider the negative feedback control system using amplifiers. If the system has two open loop poles in the left half of S plane, then the system is:
Q8.Consider the negative feedback control system, which has open loop gain G and feedback factor H. The bandwidth of the closed loop control system is given by (Note: Consider BWf as bandwidth with feedback and BW as open loop bandwidth):
Q9.In a positive feedback system if the open loop gain is -100 and the feedback factor 1/10, calculate the closed loop gain.
Q10.The closed loop transfer function of a negative feedback system is 10 and feedback factor is 0.05. What will be the open loop gain?

More Basics of Control Systems Questions

Q1.Non-minimum phase transfer function is defined as the transfer function
Q2.By considering standard notations, the transfer function of a tachometer is of the form
Q3.Which of the following terminologies is used in the rotational mechanical system?
Q4.Which statement about comparision for open loop and closed loop system is not correct?
Q5.The Laplace of the response is the same as the system function for:
Q6.Which of the following is not a characteristic of open loop system?
Q7.Which of the following is not an example of open loop system?
Q8.Solid modeling technique uses boolean set operations to create complex objects is _______.
Q9.A unity-gain negative-feedback control system has a loop-gain 𝐿(𝑠) given by \(\rm L(s)=\frac{6}{s(s-5)}\) The closed-loop system is ________
Q10.The input 𝑥(𝑡) to a system is related to its output 𝑦(𝑡) as   \(\rm \frac{dy(t)}{dt}+y(t)=3x(t-3)u(t-3)\) Here 𝑢(𝑡) represents a unit-step function. The transfer function of this system is ________ 
Suggested Test Series
View All >
UPPSC RO ARO 2024-25 Mock Tests Series
224 Total Tests with 2 Free Tests
Start Free Test
Uttar Pradesh (उत्तर प्रदेश) PCS Mock Test Series 2025
233 Total Tests with   1 Free Tests
Start Free Test

More Control Systems Questions

Q1.A unity feedback system is characterized by the open-loop transfer function \(G(s)=\frac{100}{s(5 s+10)(2 s+10)}\) The steady-state errors for unit-step and unit-ramp inputs are :
Q2.In the circuit shown switch is closed at t = 0. The time constant of the circuit is :
Q3.The loop transfer function of a closed-loop control system is given as : \(G(s) H(s)=\frac{k(s+1)}{s(s+2)(s+3)}\) The centroid of the asymptotes in root locus is :
Q4.For a control system having fourteen poles and two zeros, the slope in its magnitude plot for high frequency asymptote will be :
Q5.The Routh Array is as below : \(\begin{array}{lllll} \mathrm{S}^{6} & 1 & 8 & 20 & 16 \\ \mathrm{S}^{5} & 2 & 12 & 16 & \\ \mathrm{S}^{4} & 2 & 12 & 16 & \\ \mathrm{S}^{3} & 0 & 0 & & \end{array}\) The row of zero of this array will be replaced by coefficients of 
Q6.The number of roots in the left half of the s-plane for a system having characteristic equations : s3 + 5s2 + 7s + 3 = 0 is : 
Q7.Explain the pattern and trend of public expenditure on social services in the post reforms period in India. To what extent this has been in consonance with achieving objective of inclusive growth? 
Q8.The Nyquist criterion for stability states that an amplifier is unstable if the Nyquist curve encloses the -1 + j0 point, and the amplifier is stable if the curve does not enclose this point. If Aβ
Q9.The phase margin of a system with the open-loop transfer function \(G(s) H(s)=\frac{1-s}{(s+1)(s+2)}\) is
Q10.The phase margin of a system having the loop transfer function \(G(s) H(s)=\frac{2 \sqrt{3}}{s(s+1)}\) is
Testbook Edu Solutions Pvt. Ltd.
1st & 2nd Floor, Zion Building,
Plot No. 273, Sector 10, Kharghar,
Navi Mumbai - 410210
support@testbook.com
Toll Free:1800 833 0800
Office Hours: 10 AM to 7 PM (all 7 days)
Company
About usCareers We are hiringTeach Online on TestbookPartnersMediaSitemap
Products
Test SeriesTestbook PassOnline CoursesOnline VideosPracticeBlogRefer & EarnBooks
Copyright © 2014-2022 Testbook Edu Solutions Pvt. Ltd.: All rights reserved
User PolicyTermsPrivacy
Hot Links： teen patti master golden india teen patti gold new version 2024 teen patti pro