Heat and Mass Transfer Thermal conductivity of air at room temperature in kcal/m hr °C is of the order of 0.01 0.02 0.1 0.002 0.01 0.02 0.1 0.002 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of energy emission from unit surface area through unit solid angle, along a normal to the surface, is known as Intensity of radiation Emissivity Transmissivity Reflectivity Intensity of radiation Emissivity Transmissivity Reflectivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following has maximum value of thermal conductivity? Aluminium Brass Copper Steel Aluminium Brass Copper Steel ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Planck’s law holds good for all coloured bodies polished bodies black bodies All of these all coloured bodies polished bodies black bodies All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer LMTD in case of counter flow heat exchanger as compared to parallel flow heat exchanger is Lower Same Depends on the area of heat exchanger Higher Lower Same Depends on the area of heat exchanger Higher ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles due to difference of density caused by temperature of the particle is known as Conduction Radiation Forced convection Free convection Conduction Radiation Forced convection Free convection ANSWER DOWNLOAD EXAMIANS APP
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