The GATE Grind

GATE Propulsion: Basics of thermodynamics – Previous Year Questions

8 GATE previous year questions on Basics of thermodynamics (Propulsion, Aerospace Engineering) with answers and explanations, from every paper.

  1. GATE 2021 AE Q15 (1 mark, Multiple choice) – The ideal combustion process in a turboshaft engine is
  2. GATE 2022 AE Q42 (2 marks, Multiple choice) – Which of the following is NOT always true for a combustion process taking place in a closed system?
  3. GATE 2026 AE Q14 (1 mark, Multiple choice) – Which one of the following makes an ideal air-standard Stirling cycle?
  4. GATE 2026 AE Q52 (2 marks, Numerical answer) – Isobutane (C 4H 10) is burnt completely in pure oxygen as per the reaction given below. Given that the standard heats of formation (in kcal/mole) of…
  5. GATE 2026 AE Q53 (2 marks, Numerical answer) – A furnace of 250 MW rating is used to melt and raise the temperature of aluminium from 25 oC to 900 oC. Aluminium has a solid-state specific heat,…
  6. GATE 2025 AE Q31 (1 mark, Multiple choice) – Q and W are the heat and work interactions of a system with its surroundings, and dU is the change in the internal energy of the system. For an…
  7. GATE 2024 AE Q16 (1 mark, Multiple choice) – For an ideal gas, the specific heat at constant pressure is 1147 J/kg K and the ratio of specific heats is equal to 1.33. What is the value of the gas…
  8. GATE 2024 AE Q18 (1 mark, Multiple choice) – In the figure shown below, various thermodynamics processes for an ideal gas are represented. Match each curve with the process that it best…