GATE Heat Transfer: Conduction: steady and unsteady, equation of energy – Previous Year Questions
8 GATE previous year questions on Conduction: steady and unsteady, equation of energy (Heat Transfer, Chemical Engineering) with answers and explanations, from every paper.
- GATE 2022 CH Q40 – Consider a bare long copper wire of 1 mm diameter. Its surface temperature is T s and the ambient temperature is T a (T s > T a). The wire is to be…
- GATE 2022 CH Q54 – A cylindrical fin of diameter 24 mm is attached horizontally to a vertical planar wall. The heat transfer rate from the fin to the surrounding air is…
- GATE 2023 CH Q22 – A slab of thickness L, as shown in the figure below, has cross-sectional area A and constant thermal conductivity k. T 1 and T 2 are the temperatures…
- GATE 2024 CH Q34 – The opposite faces of a metal slab of thickness 5 cm and thermal conductivity 400 W m-1 °C-1 are maintained at 500 °C and 200 °C. The area of each…
- GATE 2024 CH Q39 – A solid slab of thickness H 1 is initially at a uniform temperature T 0. At time t = 0, the temperature of the top surface at y = H 1 is increased to…
- GATE 2025 CH Q38 – A hot plate is placed in contact with a cold plate of a different thermal conductivity as shown in the figure. The initial temperature (at time t = 0)…
- GATE 2025 CH Q53 – An electrical wire of 2 mm diameter and 5 m length is insulated with a plastic layer of thickness 2 mm and thermal conductivity k = 0.1 W/(m K). It is…
- GATE 2026 CH Q53 – A pipe with outer diameter of 0.02 m, carries hot water. The temperature at the outer surface of the pipe is 70 °C. This pipe is covered with two…