Noted. This paper is in our queue now. Check back tomorrow.
We could not record that here. Email the paper name to hirenjsca@gmail.com and we will add it.
5 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 7 repeated 3131905 questions, most asked first
Explain the difference between a Path function and a Point function in thermodynamics and give one example of each.
Determine the mass of air required for the complete combustion of 1 kg of an Iso- Octane (C₈H₁₈) used as a fuel for an engine. Assume air contains 23% O₂ by mass.
Explain with neat schematic diagram the Simple Vapour Compression Refrigeration (VCR) cycle. Also draw P-h and T-s diagrams for it.
Also asked in Summer 2025 Q4a OR
An engine working on the Otto cycle is supplied with air at 0.1 MPa, 35℃. The compression ratio is 8. Heat supplied is 2100 KJ/kg. Calculate the maximum pressure and temperature of the cycle, the cycle efficiency and mean effective pressure (for air, Cp = 1.005, Cv = 0.718 and R = 0.287 KJ/kg K).
Also asked in Summer 2025 Q4c OR
Draw Rankine cycle on P-v, T-s and h-s diagrams and derive an expression for its thermal efficiency with and without pump work.
Also asked in Summer 2025 Q4c
State first law of thermodynamics. Write the limitation of first law of thermodynamics.
Write down Kelvin-Planck and Clausius statements of second Law of thermodynamics.
A machine operating as a heat pump extracts heat from the surrounding atmosphere and draws 7.5 KW power from the electric motor. It supplies heat to a house at the rate of 2,00,000 kJ per hour for the heating of the room in winter season. Calculate the COP of heat pump. If the same machine is used to cool the house in the summer which requires the heat rejection rate of 2,00,000 kJ per hour to the surrounding, then calculate the COP in this case. Also comment on the result.
State the mathematical expression of the First Law of Thermodynamics for a closed system undergoing a thermodynamic cycle.
What is a Perpetual Motion Machine of the First Kind (PMM1)? Why does it violate the First Law of Thermodynamics?
Explain principle of increase of entropy. Apply it for the heat transfer through a finite temperature difference.
Also asked in Summer 2025 Q3c OR
State the Clausius theorem in its mathematical form and briefly explain the type of process it is applied to.
5 kg of water at 0℃ is exposed to reservoir at 98℃. Calculate the change of entropy of water, reservoir and universe. Assume that specific heat of water is 4.187 KJ/Kg- K.
Also asked in Summer 2025 Q3c
Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.
BE Mechanical
Send this paper to your class group. Every question has its own link.
Official Gujarat Technological University (GTU) examination paper for Engineering Thermodynamics (Summer 2026, B.E. · Mechanical 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.
3131905 Engineering Thermodynamics
Official GTU PDF · Summer 2026
The PDF could not be loaded from the university's website.
Open the PDF directly