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Practice Applications - 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 Applications. 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) 2025 | 2025 | 1 | View paper |
| Mechanical Engineering (ME) 2020 [Session 2] | 2020 | 2 | View paper |
| Mechanical Engineering (ME) 2018 [Session 2] | 2018 | 3 | View paper |
| Mechanical Engineering (ME) 2016 [Session 3] | 2016 | 2 | View paper |
| Mechanical Engineering (ME) 2014 [Session 1] | 2014 | 1 | View paper |
| Mechanical Engineering (ME) 2014 [Session 2] | 2014 | 1 | View paper |
| Mechanical Engineering (ME) 2014 [Session 3] | 2014 | 2 | View paper |
| Mechanical Engineering (ME) 2014 [Session 4] | 2014 | 1 | View paper |
| Mechanical Engineering (ME) 2013 [Session 1] | 2013 | 1 | View paper |
| Mechanical Engineering (ME) 2013 [Session 2] | 2013 | 1 | View paper |
| Mechanical Engineering (ME) 2013 [Session 3] | 2013 | 1 | View paper |
| Mechanical Engineering (ME) 2013 [Session 4] | 2013 | 1 | View paper |
| Mechanical Engineering (ME) 2008 | 2008 | 1 | View paper |
| Mechanical Engineering (ME) 2007 | 2007 | 3 | View paper |
Practice every matching question in batches of 20, with every available option.
Atmospheric air at a flow rate of 3 kg/s (on dry basis) enters a cooling and dehumidifying coil with an enthalpy of 85 kJ/kg of dry air and a humidity ratio of 19 grams/kg of dry air. The air leaves the coil with an enthalpy of 43 kJ/kg of dry air and a humidity ratio of 8 grams/kg of dry air. If the condensate water leaves the coil with an enthalpy of 67 kJ/kg, the required cooling capacity of the coil in kW is
Match the items in columns I and II.
| Column I | Column II |
|---|---|
| P: Centrifugal compressor | 1: Axial flow |
| Q: Centrifugal pump | 2: Surging |
| R: Pelton wheel | 3: Priming |
| S: Kaplan turbine | 4: Pure impulse |
Air (at atmospheric pressure) at a dry bulb temperature of 40°C and wet bulb temperature of 20°C is humidified in an air washer operating with continuous water recirculation. The wet bulb depression (i.e. the difference between the dry and wet bulb temperatures) at the exit is 25% of that at the inlet. The dry bulb temperature at the exit of the air washer is closest to
The pressure, dry bulb temperature and relative humidity of air in a room are 1 bar, 30°C and 70%, respectively. If the saturated steam pressure at 30°C is 4.25 kPa, the specific humidity of the room air in kg water vapour/kg dry air is
In a psychrometric chart, one axis represents dry-bulb temperature. The axis, that is perpendicular to the dry-bulb temperature axis, represents