Q.1
14 Marks(c)
Derive the expression of a second order control system subjected to unit step signal.
Gujarat Technological UniversitySummer 2025 examination
GTU 3131101 Control Systems Summer 2025 Question Paper & PDF
B.E. · EC Engineering · Semester 3 · Subject code 3131101
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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19 of 25 questions on this paper were also asked in other years. 2 more are types of question GTU sets again with new data. Each is marked below with the years it appeared.See all 31 repeated 3131101 questions, most asked first
Q.2
14 Marks(c)
State root locus technique rules.
Also asked in Summer 2026 Q3c, Winter 2025 Q3c, Summer 2024 Q4c OR
OR
Q.3
14 Marks(b)
Find laplace transform of x(t) = cosh (4t)
(c)
Explain the following controllers (!) PID controller
2)P controller
3)PI controller
Also asked in Summer 2024 Q5c
OR
(a)
Define
i)State vector
ii)Delay time
iii)Rise time
Q.4
14 Marks(a)
Define
i)Marginally stable state
ii)Conditional stable state
iii)Unstable state.
Also asked in Summer 2026 Q5a, Summer 2024 Q5a
(c)
Obtain the expression of steady state error. Also, find the equations for static error coefficients.
Also asked in Summer 2026 Q5b, Winter 2025 Q5b, Summer 2024 Q3b OR
OR
(a)
Write advantages of state space approach over classical methods.
Also asked in Summer 2026 Q2a, Winter 2025 Q2a
(c)
Write all the rules of Block Diagram Reduction technique.
Also asked in Summer 2026 Q1c, Winter 2025 Q1c, Summer 2024 Q2c OR
Q.5
14 Marks(a)
Define
i)Gain Margin
ii)Frequency response
iii)Phase Margin
Also asked in Summer 2026 Q5a OR, Winter 2025 Q5a OR, Summer 2024 Q5a OR
(c)
State and explain compensator. Explain Phase-Lag compensator in detail.
Also asked in Summer 2026 Q4c, Winter 2025 Q4c
OR
(b)
Explain gain crossover frequency and phase crossover frequency.
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About this paper
Official Gujarat Technological University (GTU) examination paper for Control Systems (Summer 2025, B.E. · EC Engineering, Sem 3). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.