1
GATE ME 2024
Numerical
+2
-0
Consider a hemispherical furnace of diameter $ D = 6 \text{ m} $ with a flat base. The dome of the furnace has an emissivity of 0.7 and the flat base is a blackbody. The base and the dome are maintained at uniform temperature of 300 K and 1200 K, respectively. Under steady state conditions, the rate of radiation heat transfer from the dome to the base is _______ kW (rounded off to the nearest integer).
Use Stefan-Boltzmann constant = $5.67 \times 10^{-8} \text{ W/(m}^2 \text{ K}^4 \text{)}$
Your input ____
2
GATE ME 2023
MCQ (Single Correct Answer)
+2
-0.66
A cylindrical rod of length ℎ and diameter 𝑑 is placed inside a cubic enclosure of side length 𝐿. 𝑆 denotes the inner surface of the cube.
The view-factor FS-S is
The view-factor FS-S is
3
GATE ME 2017 Set 1
Numerical
+2
-0
Two black surfaces, $$AB$$ and $$BC,$$ of lengths $$5m$$ and $$6m,$$ respectively, are oriented as shown. Both surfaces extend infinitely into the third dimension. Given that view factor $${F_{12}} = 0.5,\,\,{T_1} = 800\,\,K,\,\,{T_2} = 600\,\,K,$$ $${T_{surrounding}} = 300\,\,K$$ and Stefan Boltzmann constant, $$\sigma = 5.67 \times {10^{ - 8}}\,\,W/\left( {{m^2}{K^4}} \right),$$ the heat transfer rate from Surface $$2$$ to the surrounding environment is ____________ $$kW.$$
Your input ____
4
GATE ME 2016 Set 3
Numerical
+2
-0
Two large parallel plates having a gap of $$10$$ $$mm$$ in between them are maintained at temperatures $${T_1} = 1000\,\,K$$ and $${T_2} = 400\,\,K$$
Given emissivity values, $${\varepsilon _1} = 0.5,\,\,{\varepsilon _2} = 0.25$$ and Stefan-Boltzmann constant $$\sigma = 5.67 \times {10^{ - 8}}\,$$ $$\,W/{m^2}$$-$$K,$$ the heat transfer between the plates (in $$kW/{m^2}$$) is _____________.
Given emissivity values, $${\varepsilon _1} = 0.5,\,\,{\varepsilon _2} = 0.25$$ and Stefan-Boltzmann constant $$\sigma = 5.67 \times {10^{ - 8}}\,$$ $$\,W/{m^2}$$-$$K,$$ the heat transfer between the plates (in $$kW/{m^2}$$) is _____________.
Your input ____
Questions Asked from Marks 2
GATE ME 2025 (1) GATE ME 2024 (1) GATE ME 2023 (1) GATE ME 2017 Set 1 (1) GATE ME 2016 Set 3 (1) GATE ME 2016 Set 1 (1) GATE ME 2015 Set 2 (1) GATE ME 2015 Set 3 (1) GATE ME 2014 Set 4 (1) GATE ME 2014 Set 3 (1) GATE ME 2014 Set 2 (1) GATE ME 2013 (1) GATE ME 2012 (1) GATE ME 2009 (2) GATE ME 2008 (1) GATE ME 2005 (1) GATE ME 2002 (1) GATE ME 2001 (1) GATE ME 1993 (1)
GATE ME Subjects
Engineering Mechanics
Machine Design
Strength of Materials
Heat Transfer
Production Engineering
Industrial Engineering
Turbo Machinery
Theory of Machines
Engineering Mathematics
Fluid Mechanics
Thermodynamics
General Aptitude