GATE ECE 2015 Set 1 | Basic of Control Systems Question 4 | Control Systems

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GATE ECE 2015 Set 1

MCQ (Single Correct Answer)

-0.3

Negative feedback in a closed-loop control system DOES NOT

reduce the overall gain

reduce bandwidth

improve disturbance rejection

reduce sensitivity to parameter variation

GATE ECE 2005

MCQ (Single Correct Answer)

-0.3

Despite the presence of negative feedback, control systems still have problems of instability because the

Components used have nonlinearities.

Dynamic equations of the subsystems are not known exactly.

Mathematical analysis involves approximations.

System has large negative phase angle at high frequencies.

GATE ECE 1998

MCQ (Single Correct Answer)

-0.3

The transfer function of a tachometer is of the form

$$\frac{\mathrm K}{\mathrm s}$$

$$\frac{\mathrm K}{\left(\mathrm s+1\right)}$$

$$\frac{\mathrm K}{\mathrm s\left(\mathrm s+1\right)}$$

GATE ECE 1995

MCQ (Single Correct Answer)

-0.3

The transfer function of a linear system is the

Ratio of the output, V₀(t) and input V_i(t)

Ratio of the derivatives of the output and the input

Ratio of the Laplace transform of the output and that of the input with all initial conditions zeros

none of these

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GATE ECE Subjects

Network Theory

Network Elements Network Theorems Transient Response Sinusoidal Steady State Response Two Port Networks Network Graphs State Equations For Networks Miscellaneous

Control Systems

Basic of Control Systems Signal Flow Graph and Block Diagram Time Response Analysis Stability Root Locus Diagram Frequency Response Analysis Compensators State Space Analysis

Electronic Devices and VLSI

Semiconductor Physics PN Junction BJT and FET IC Basics and MOSFET

Analog Circuits

Diodes Bipolar Junction Transistor Frequency Response FET and MOSFET Oscillators Operational Amplifier Feedback Amplifier Power Amplifier 555 Timer

Digital Circuits

Number System and Code Convertions Boolean Algebra Logic Gates Combinational Circuits Sequential Circuits Semiconductor Memories Logic Families Analog to Digital and Digital to Analog Converters

Microprocessors

Pin Details of 8085 and Interfacing with 8085 Instruction Set and Programming with 8085

Signals and Systems

Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous

Communications

Analog Communication Systems Digital Communication Systems Random Signals and Noise Fundamentals of Information Theory Noise In Digital Communication

Electromagnetics

Maxwell Equations Transmission Lines Uniform Plane Waves Waveguides Antennas Miscellaneous

General Aptitude

Numerical Ability Logical Reasoning Verbal Ability

Engineering Mathematics

Linear Algebra Calculus Vector Calculus Probability and Statistics Differential Equations Complex Variable Numerical Methods Transform Theory