Heat and Mass Transfer The emissive power of a body depends upon its Temperature Wave length All of these Physical nature Temperature Wave length All of these Physical nature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The energy distribution of an ideal reflector at higher temperatures is largely in the range of Longer wavelength Wavelength has nothing to do with it Shorter wavelength Remain same at all wavelengths Longer wavelength Wavelength has nothing to do with it Shorter wavelength Remain same at all wavelengths ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Absorptivity of a body will be equal to its emissivity When system is under thermal equilibrium At all temperatures At critical temperature At one particular temperature When system is under thermal equilibrium At all temperatures At critical temperature At one particular temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Emissivity of a white polished body in comparison to a black body is Higher Depends upon the shape of body Same Lower Higher Depends upon the shape of body Same Lower ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The natural convection air cooled condensers are used in Room air conditioners Domestic refrigerators All of these Water coolers Room air conditioners Domestic refrigerators All of these Water coolers ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical thickness of insulation for a sphere is 2k/h₀ k/h₀ h₀/k h₀/2k 2k/h₀ k/h₀ h₀/k h₀/2k ANSWER DOWNLOAD EXAMIANS APP
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