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Practice Thermodynamics - Fluid Mechanics and Thermal Sciences - Mechanical Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
Every graph below is calculated only from this selection.
Year-wise coverage for Thermodynamics. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Newest papers appear first. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Mechanical Engineering (ME) 2026 | 2026 | 5 | View paper |
| Mechanical Engineering (ME) 2025 | 2025 | 5 | View paper |
| Mechanical Engineering (ME) 2024 | 2024 | 5 | View paper |
| Mechanical Engineering (ME) 2023 | 2023 | 4 | View paper |
| Mechanical Engineering (ME) 2021 [Session 1] | 2021 | 8 | View paper |
| Mechanical Engineering (ME) 2020 [Session 1] | 2020 | 7 | View paper |
| Mechanical Engineering (ME) 2020 [Session 2] | 2020 | 6 | View paper |
| Mechanical Engineering (ME) 2019 [Session 1] | 2019 | 7 | View paper |
| Mechanical Engineering (ME) 2019 [Session 2] | 2019 | 3 | View paper |
| Mechanical Engineering (ME) 2018 [Session 1] | 2018 | 5 | View paper |
| Mechanical Engineering (ME) 2018 [Session 2] | 2018 | 4 | View paper |
| Mechanical Engineering (ME) 2016 [Session 1] | 2016 | 4 | View paper |
| Mechanical Engineering (ME) 2016 [Session 2] | 2016 | 6 | View paper |
| Mechanical Engineering (ME) 2016 [Session 3] | 2016 | 3 | View paper |
| Mechanical Engineering (ME) 2014 [Session 1] | 2014 | 6 | View paper |
| Mechanical Engineering (ME) 2014 [Session 2] | 2014 | 5 | View paper |
| Mechanical Engineering (ME) 2014 [Session 3] | 2014 | 5 | View paper |
| Mechanical Engineering (ME) 2014 [Session 4] | 2014 | 3 | View paper |
| Mechanical Engineering (ME) 2013 [Session 1] | 2013 | 5 | View paper |
| Mechanical Engineering (ME) 2013 [Session 2] | 2013 | 5 | View paper |
| Mechanical Engineering (ME) 2013 [Session 3] | 2013 | 5 | View paper |
| Mechanical Engineering (ME) 2013 [Session 4] | 2013 | 5 | View paper |
| Mechanical Engineering (ME) 2011 | 2011 | 7 | View paper |
| Mechanical Engineering (ME) 2010 | 2010 | 6 | View paper |
| Mechanical Engineering (ME) 2009 | 2009 | 8 | View paper |
| Mechanical Engineering (ME) 2008 | 2008 | 13 | View paper |
| Mechanical Engineering (ME) 2007 | 2007 | 7 | View paper |
Practice every matching question in batches of 20, with every available option.
Which of the following relationships is valid only for reversible processes undergone by a closed system of simple compressible substance (neglect changes in kinetic and potential energy)?
A heat transformer is a device that transfers a part of the heat, supplied to it at an intermediate temperature, to a high temperature reservoir while rejecting the remaining part to a low temperature heat sink. In such a heat transformer, 100 kJ of heat is supplied at 350 K. The maximum amount of heat in kJ that can be transferred to 400 K, when the rest is rejected to a heat sink at 300 K is
If the specific heats of the working fluid are constant and the value of specific heat ratio γ is 1.4, the thermal efficiency (%) of the cycle is
Which one of the following is NOT a necessary assumption for the air-standard Otto cycle?
A balloon containing an ideal gas is initially kept in an evacuated and insulated room. The balloon ruptures and the gas fills up the entire room. Which one of the following statements is TRUE at the end of above process?
A rigid, insulated tank is initially evacuated. The tank is connected with a supply line through which air (assumed to be ideal gas with constant specific heats) passes at 1 MPa, 350°C. A valve connected with the supply line is opened and the tank is charged with air until the final pressure inside the tank reaches 1 MPa. The final temperature inside the tank
Moist air at a pressure of 100 kPa is compressed to 500 kPa and then cooled to 35°C in an aftercooler. The air at the entry to the aftercooler is unsaturated and becomes just saturated at the exit of the aftercooler. The saturation pressure of water at 35°C is 5.628 kPa. The partial pressure of water vapour (in kPa) in the moist air entering the compressor is closest to
The net entropy generation (considering the system and the thermal reservoir together) during the process is closest to
Showing 20 of 144 questions
