Previous year question paper for AC (B-TECH Mechanical Engineering 6th)

Unit I Introduction And Applications: Types of control systems ; Typical Block Diagram :

Performance Analysis; Applications – Machine Tool Control, Boiler Control, Engine

Governing, Aerospace Control, Active Vibration Control; Representation of Processes &

Control Elements – Mathematical Modeling. Block Diagram Representation,

Representation of Systems or Processes, Comparison Elements; Representation of

Feedback Control systems – Block Diagram & Transfer Function Representation,

Representation of a Temperature, Control System, Signal Flow Graphs, Problems.

Unit II Types of Controllers : Introduction : Types of Control Action; Hydraulic Controllers;

Electronic Controllers; Pneumatic Controllers; Problems.

Unit III Transient And Steady State Response: Time Domain Representation; Laplace Transform

Representation; System with Proportional Control; Proportional – cum – Derivative

control; Proportional – cum – Integral Control; Error Constants; Problems.

Unit IV Frequency Response Analysis: Introduction; Closed and Open Loop Transfer Function;

Polar Plots; Rectangular Plots; Nichols Plots: Equivalent Unity Feed Back Systems;

Problems.

Unit V Stability Of Control Systems : Introduction; Characteristic Equation; Routh’s Criterion;

Nyquists Criterion, Gain & Phase Margins: Problems.

Unit VI Root Locus Method : Introduction; Root Ioci of a Second Order System; General Case;

Rules for Drawing Forms of Root Ioci; Relation between Root Locus Locations and

Transient Response; Parametric Variation; Problems.

Unit VII Digital Control System : Introduction; Representation of Sampled Signal; Hold Device;

Pulse Transfer Function; Block Diagrams; Transient Response; Routh’s Stability

Criterion; Root Locus Method; Nyquists Criterion; Problems.

Unit VIII State Space Analysis Of Control Systems: Introduction; Generalized State Equation;

Techniques for Deriving System State – Space Equations; Transfer Function from State

Equations; Solution of State Vector Differential Equations; Discrete Systems; Problems.