Heat and Mass Transfer The energy distribution of an ideal reflector at higher temperatures is largely in the range of Shorter wavelength Remain same at all wavelengths Wavelength has nothing to do with it Longer wavelength Shorter wavelength Remain same at all wavelengths Wavelength has nothing to do with it Longer wavelength ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fouling factor is used In heat exchanger design as a safety factor None of these When a liquid exchanges heat with a gas In case of Newtonian fluids In heat exchanger design as a safety factor None of these When a liquid exchanges heat with a gas In case of Newtonian fluids ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of air with rise in temperature Increases Decreases May increase or decrease depending on temperature Remain constant Increases Decreases May increase or decrease depending on temperature Remain constant ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following has maximum value of thermal conductivity? Brass Copper Steel Aluminium Brass Copper Steel Aluminium ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The radiation emitted by a black body is known as Full radiation All of these Total radiation Black radiation Full radiation All of these Total radiation Black radiation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, body will be transparent when(Where a = absorptivity, p = reflectivity, x = transmissivity) P=1, x = 0, and a = 0 X = 0, a + p = 1 P = 0, x= 1, and a = 0 P = 0, x = 0 and a = 1 P=1, x = 0, and a = 0 X = 0, a + p = 1 P = 0, x= 1, and a = 0 P = 0, x = 0 and a = 1 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS