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Control Systems Multiple Choice Questions | MCQs | Quiz

Control Systems Interview Questions and Answers
Practice Control Systems questions and answers for interviews, campus placements, online tests, aptitude tests, quizzes and competitive exams.

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•   Robotic Mechanisms
•   Transfer Functions
•   Algebra Block Diagram
•   Signal Flow Graphs
•   Feedback Systems
•   Disturbance Signal Effect
•   Linearizing Effect
•   Nonlinear Systems
•   Controller Components-1
•   Controller Components-2
•   Stepper Motors
•   Hydraulic Systems
•   Pneumatic Systems
•   Standard Signals Test
•   First Order Systems
•   Second Order Systems-1
•   Second Order Systems-2
•   Second Order Systems-3
•   Second Order Systems-4
•   Steady-State Errors
•   Zero System Effect - 1
•   Zero System Effect - 2
•   Higher-Order Systems
•   Performance Indices
•   Robotic Control System-1
•   Robotic Control System-2
•   State Variable Analysis-1
•   State Variable Analysis-2
•   Lower Order Systems
•   Stability Concept
•   Stability Conditions
•   Routh-Hurwitz Stability
•   Relative Stability Analysis
•   Root Locus Concepts
•   Root Locus
•   Root Loci Construction
•   Frequency Response
•   Time & Frequency
•   Polar Plots
•   Bode Plots
•   Minimum-Phase Systems
•   Transfer Functions
•   Mathematical Preliminarie
•   Nyquist Stability Criterion
•   Time Domain Analysis
•   Relative Stability
•   Closed-Loop Frequency
•   Design Problem
•   Classical Design
•   Basic Compensators
•   Cascade Compensation
•   Frequency Domain
•   PID Controllers
•   Feedback Compensation
•   Spectrum Analysis
•   Signal Reconstruction
•   Difference Equations
•   Z-Transform
•   Z-Transfer Function
•   Inverse Z-transform
•   Z-transform Analysis
•   Z & S Relationship
•   Stability Analysis
•   Compensation Technique
•   State Variables & Model
•   Linear State Models
•   State Variables
•   Diagonalization
•   State Equations Solution
•   Controlability
•   Pole Placement
•   Observer Systems
•   Liapunov's Stability - 1
•   Liapunov's Stability - 2
•   Linear Systems
•   Servomechanims
•   Optimal Control Problem1
•   Optimal Control Problem2
•   State Regulator Problem
•   Time Regulator Problem
•   Tracking Problem
•   Parameter Optimization
•   Physical Nonlinearities
•   Nonlinear Stability - 1
•   Nonlinear Stability - 2
•   Phase-Trajectories - 1
•   Phase-Trajectories - 2
•   Stability Analysis
•   Adaptive Control
•   Fuzzy Logic Control
•   Neural Networks

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Control Systems Questions and Answers – Constructing Phase-Trajectories

Posted on May 21, 2017 by Manish

This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “Constructing Phase-trajectories”.

1. In liquid level and electrical system analogy, voltage is considered analogous to :
a) Head
b) Liquid flow
c) Liquid flow rate
d) Air flow rate
View Answer

Answer: a
Explanation: In liquid level and electrical system analogy, voltage is considered analogous to the head which can be pressure head that is the potential energy.
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2. The viscous friction co-efficient, in force-voltage analogy, is analogous to:
a) Charge
b) Resistance
c) Reciprocal of inductance
d) Reciprocal of conductance
View Answer

Answer: b
Explanation: The viscous friction co-efficient in force-voltage analogy, is analogous to resistance of the electrical circuit that can be found out mathematically.

3. In force-voltage analogy, velocity is analogous to:
a) Current
b) Charge
c) Inductance
d) Capacitance
View Answer

Answer: a
Explanation: In force-voltage analogy, velocity is analogous to the current in force-voltage that is also called series circuit.

4. In thermal-electrical analogy charge is considered analogous to:
a) Heat flow
b) Reciprocal of heat flow
c) Reciprocal of temperature
d) Temperature
View Answer

Answer: d
Explanation: In thermal-electrical analogy in which heat transfer in the wire or conductor can be related to the temperature.
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5. Mass, in force-voltage analogy, is analogous to:
a) Charge
b) Current
c) Inductance
d) Resistance
View Answer

Answer: c
Explanation: Mass, is analogous to the inductance in the force-voltage analogy in the series form as all the elements of the circuit are connected in the parallel.

6. The transient response of a system is mainly due to:
a) Inertia forces
b) Internal forces
c) Stored energy
d) Friction
View Answer

Answer: c
Explanation: The transient response of the system is mainly due to stored energy as it is due to the initial conditions which is nothing but the stored energy.

7. ___________ signal will become zero when the feedback signal and reference signs are equal.
a) Input
b) Actuating
c) Feedback
d) Reference
View Answer

Answer: b
Explanation: Actuating signal is the difference between the feedback signal and the reference signal and when both of the signals are equal then the signal is zero.
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8. A signal other than the reference input that tends to affect the value of controlled variable is known as
a) Disturbance
b) Command
c) Control element
d) Reference input
View Answer

Answer: a
Explanation: Disturbance signal is also the reference signal only there can be multiple inputs in a control system or the other input is called the disturbance signal.

9. The transfer function is applicable to which of the following?
a) Linear and time-in variant systems
b) Linear and time-variant systems
c) Linear systems
d) Non-linear systems
View Answer

Answer: a
Explanation: The transfer function is different from the state space approach as the transfer function approach is similar to the LTI systems only while the state variable analysis is applicable to the non-linear time variant systems also.

10. From which of the following transfer function can be obtained?
a) Signal flow graph
b) Analogous table
c) Output-input ratio
d) Standard block system
View Answer

Answer: a
Explanation: The transfer function can be obtained by using signal flow graphs from among these given methods.

Sanfoundry Global Education & Learning Series – Control Systems.
To practice all areas of Control Systems, here is complete set of 1000+ Multiple Choice Questions and Answers.

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