Heat and Mass Transfer The unit of Stefan Boltzmann constant is watt/cm2 °K⁴ watt2/cm °K⁴ watt/cm3 °K watt/cm4 °K watt/cm2 °K⁴ watt2/cm °K⁴ watt/cm3 °K watt/cm4 °K ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The energy distribution of an ideal reflector at higher temperatures is largely in the range of Wavelength has nothing to do with it Remain same at all wavelengths Shorter wavelength Longer wavelength Wavelength has nothing to do with it Remain same at all wavelengths Shorter wavelength Longer wavelength ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Reynolds number (RN) is given by (where h = Film coefficient, l = Linear dimension, V = Velocity of fluid, k = Thermal conductivity, t = Temperature, ρ = Density of fluid, cp = Specific heat at constant pressure, and μ = Coefficient of absolute viscosity) RN = μ cp/k RN = hl/k RN = ρ V l /μ RN = V²/t.cp RN = μ cp/k RN = hl/k RN = ρ V l /μ RN = V²/t.cp ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water in general with rise in temperature Decreases Increases Remain constant May increase or decrease depending on temperature Decreases Increases Remain constant May increase or decrease depending on temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat is closely related with Entropy Temperature Liquids Energy Entropy Temperature Liquids Energy ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following is expected to have highest thermal conductivity? Solid ice Water Steam Melting ice Solid ice Water Steam Melting ice ANSWER DOWNLOAD EXAMIANS APP
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