Control Systems - Electronic Engineering (MCQ) questions & answers
Dear Readers, Welcome to Control Systems multiple choice questions and answers with explanation. These objective type Control Systems questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma.
Specially developed for the Electronic Engineering freshers and professionals, these model questions are asked in the online technical test and interview of many companies.
These tutorial are also important for your viva in university exams like Anna university, Pune, VTU, UPTU, CUSAT etc.
1) Which among the following units of PLC is adopted to convey the control plan to CPU?
- Published on 09 Oct 15
a. Memory
b. Power supply unit
c. I/O interface
d. Programming software
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2) Which architectural unit/block of PLC decides the sequence of different operations to be executed by means of instructions written in memory?
- Published on 09 Oct 15
a. Memory
b. Programming software
c. I/O interface
d. CPU
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3) Which among the following is a unique model of a system?
- Published on 09 Oct 15
a. Transfer function
b. State variable
c. Both a and b
d. None of the above
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4) Which among the following is a disadvantage of modern control theory?
- Published on 09 Oct 15
a. Implementation of optimal design
b. Transfer function can also be defined for different initial conditions
c. Analysis of all systems take place
d. Necessity of computational work
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5) According to the property of state transition method, e0 is equal to _____
- Published on 09 Oct 15
a. I
b. A
c. e-At
d. -eAt
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6) Which mechanism in control engineering implies an ability to measure the state by taking measurements at output?
- Published on 09 Oct 15
a. Controllability
b. Observability
c. Differentiability
d. Adaptability
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7) State model representation is possible using _________
- Published on 09 Oct 15
a. Physical variables
b. Phase variables
c. Canonical state variables
d. All of the above
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8) Which among the following constitute the state model of a system in addition to state equations?
- Published on 09 Oct 15
a. Input equations
b. Output equations
c. State trajectory
d. State vector
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9) Which principle specifies the relationship between enclosure of poles & zeros by s-plane contour and the encirclement of origin by q(s) plane contour?
- Published on 09 Oct 15
a. Argument
b. Agreement
c. Assessment
d. Assortment
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10) If a Nyquist plot of G (jω) H (jω) for a closed loop system passes through (-2, j0) point in GH plane, what would be the value of gain margin of the system in dB?
- Published on 09 Oct 15
a. 0 dB
b. 2.0201 dB
c. 4 dB
d. 6.0205 dB
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