# Control Systems Questions and Answers

Our 1000+ Control Systems questions and answers focuses on all areas of Control Systems subject covering 100+ topics in Control Systems. These topics are chosen from a collection of most authoritative and best reference books on Control Systems. One should spend 1 hour daily for 2-3 months to learn and assimilate Control Systems comprehensively. This way of systematic learning will prepare anyone easily towards Control Systems interviews, online tests, examinations and certifications.

**Highlights**

– 1000+ Multiple Choice Questions & Answers in Control Systems with explanations.

– Every MCQ set focuses on a specific topic in Control Systems Subject.

**Who should Practice these Control Systems Questions?**

– Anyone wishing to sharpen their knowledge of Control Systems Subject.

– Anyone preparing for aptitude test in Control Systems.

– Anyone preparing for interviews (campus/off-campus interviews, walk-in interview and company interviews).

– Anyone preparing for entrance examinations and other competitive examinations.

– All – Experienced, Freshers and Students.

**Here’s list of Questions & Answers on Control Systems Subject covering 100+ topics:**

#### 1. Mathematical Models of Physical Systems

The section contains questions and answers on transfer functions, block diagram algebra, signal flow graphs and equations of physical systems.

Differential Equations of Physical Systems and Dynamics of Robotic Mechanisms Transfer Functions |
Block diagram Algebra Signal Flow Graphs |

#### 2. Feedback Characteristics of Control Systems

The section contains questions on linearizing effect and regenerative feedback, effects of disturbance signal by using feedback, feedback and non-feedback systems.

Feedback and Non-feedback Systems Control of the Effects of Disturbance Signals by Use of Feedback |
Linearizing Effect and Regenerative Feedback |

#### 3. Control System and Components

The section contains questions and answers on controller components, stepper motors, linear approximation of nonlinear systems, hydraulic and pneumatic systems.

Linear Approximation of Nonlinear Systems Controller Components – I Controller Components – II |
Stepper Motors Hydraulic Systems Pneumatic Systems |

#### 4. Time Response Analysis, Design Specifications and Performance Indices

The section contains questions on standard test signals, time response of first and second order systems, steady state errors, performance indices, robotic control and state variable analysis.

#### 5. Stability and Algebraic Criteria

The section contains questions on stability, conditions for stability, non-linear systems and routh-hurwitz stability criterion.

Concept of Stability Necessary Conditions for Stability and Non-Linear Systems |
Routh-Hurwitz Stability Criterion Relative Stability Analysis-II |

#### 6. The Root Locus Technique

The section contains questions on root locus and construction of root loci.

The Root Locus Concepts The Root Locus |
Construction Root Loci |

#### 7. Frequency Response Analysis

The section contains questions on frequency response,polar and bode plots, pass and minimum phase systems, correlation between time and frequency response and transfer functions.

Frequency Response Correlation between Time and Frequency Response Polar Plots |
Bode Plots All-pass and Minimum-phase Systems Experimentation of Transfer Functions |

#### 8. Stability in Frequency Domain

The section contains questions and answers on mathematical preliminaries,nyquist stability creation, closed loop frequency and time domain analysis.

Mathematical Preliminaries Nyquist Stability Criterion Time Domain Analysis |
Assessment of Relative Stability Using Nyquist Criterion Closed-Loop Frequency Response |

#### 9. Design

The section contains questions and answers on design problems, cascade compensation in time domain as well as frequency domain, tuning of pid controllers, realization of basic compensators and feedback compensation.

#### 10. Digital Control Systems

The section contains questions on signal reconstruction, z transform, z-transfer function, equations, z and s domain relationship, stability analysis and compensation techniques.

#### 11. State Variable Analysis and Design

The section contains questions and answers on concepts of state, state variables and state model, solutions of state equations, controllability and observability, pole placement by state feedback, observer systems and state models for linear continuous-time systems.

#### 12. Liapunov’s Stability Analysis

The section contains questions on liapunov’s stability criterion.

Liapunov’s Stability Criterion – I Liapunov’s Stability Criterion – II |
Constructing of Liapunov for the Linear and Non-Linear System |

#### 13. Optimal Control Systems

The section contains questions on servomechanims, parameter optimization, optimal control and state regulator problems, output regulator tracking problem and infinite-time regulator problem.

#### 14. Nonlinear Systems

The section contains questions on construction of phase trajectories, stability of nonlinear system and stability analysis by describing the functions.

#### 15. Advances in Control System

The sections covers questions on neural networks, adaptive control and fuzzy logic.

Adaptive Control Fuzzy Logic Control |
Neural Networks |

Here’s the list of Best Reference Books in Control Systems.

**Wish you the best in your endeavor to learn and master Control Systems!**