Heat and Mass Transfer Depending on the radiating properties, a body will be black when(Where a = absorptivity, p = reflectivity, X = transmissivity.) P = 0, x = 0 and a = 1 X = 0, a + p = 0 P = 0, x = 1 and a = 0 P= 1, T = 0 and a = 0 P = 0, x = 0 and a = 1 X = 0, a + p = 0 P = 0, x = 1 and a = 0 P= 1, T = 0 and a = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to Grashoff number Peclet number Stanton number Biot number Grashoff number Peclet number Stanton number Biot number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The transfer of heat by molecular collision is smallest in Liquids Solids None of these Gases Liquids Solids None of these Gases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The highest thermal diffusivity is of Iron Lead Concrete Wood Iron Lead Concrete Wood ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Pick up the wrong case. Heat flowing from one side to other depends directly on Face area Thickness Temperature difference Time Face area Thickness Temperature difference Time 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 Remain same at all wavelengths Shorter wavelength Longer wavelength Wavelength has nothing to do with it Remain same at all wavelengths Shorter wavelength ANSWER DOWNLOAD EXAMIANS APP
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