EXAMIANS
The natural convection air cooled condensers are used in
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Log mean temperature difference in case of counter flow compared to parallel flow will be
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The radiation emitted by a black body is known as
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Two plates spaced 150 mm apart are maintained at 1000°C and 70°C. The heat transfer will take place mainly by
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The ratio of the energy absorbed by the body to total energy falling on it is called
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When heat is transferred by molecular collision, it is referred to as heat transfer by
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Unit of thermal diffusivity is
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In case of liquids and gases, the heat transfer takes place according to
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The ratio of the thickness of thermal boundary layer to the thickness of hydrodynamic boundary layer is equal to (Prandtl number) n, where n is equal to
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Thermal conductivity of wood depends on
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