Heat Transfer The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body) Independent of T α 1/T α T⁴ αT Independent of T α 1/T α T⁴ αT ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a grey body at a given temperature __________ with increasing wavelength of radiation. Decreases Remains constant Increases May increase or decrease ; depends on the material Decreases Remains constant Increases May increase or decrease ; depends on the material ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporation accounts for None of these Investment economy Steam economy Lower operating costs None of these Investment economy Steam economy Lower operating costs ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law applies to the heat transfer by radiation convection conduction None of the listed here radiation convection conduction None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashhoff number is given by gD³.β.Δtρ²/μ² gD2βΔtP²μ gD³βΔtP²/μ gD2βΔtρ/μ² gD³.β.Δtρ²/μ² gD2βΔtP²μ gD³βΔtP²/μ gD2βΔtρ/μ² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The most conducive surface for dropwise condensation to occur is the __________ surface. Glazed & polished Oily Coated Smooth Glazed & polished Oily Coated Smooth ANSWER DOWNLOAD EXAMIANS APP
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