Heat Transfer The Fourier number (defined as a.t/L²) is used in the analysis of problem involving heat transfer by Transient conduction Natural convection Steady state conduction Forced convection Transient conduction Natural convection Steady state conduction Forced convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer rate described by Fourier's law will decrease, if the __________ increases. Heat transfer area Temperature difference Thickness Thermal conductivity Heat transfer area Temperature difference Thickness Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat sensitive materials can be concentrated in an evaporator employing None of these High residence time High pressure Vacuum None of these High residence time High pressure Vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a perfectly transparent surface (like gases), the Reflectivity = 0 All of these Transmissivity = 1 Absorptivity = 0 Reflectivity = 0 All of these Transmissivity = 1 Absorptivity = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns. 100-1000 0.38-0.78 0.5-50 5-50 100-1000 0.38-0.78 0.5-50 5-50 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body is called grey if the monochromatic emissivity of the body is Zero Different for all wavelengths Unity Same for all wavelengths Zero Different for all wavelengths Unity Same for all wavelengths ANSWER DOWNLOAD EXAMIANS APP
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