Heat Transfer A metal wire of 0.01 m dia and thermal conductivity 200 W/m.K is exposed to a fluid stream with a convective heat transfer coefficient of 100 W/m².K. The Biot number is 0.025 3.5 0.0035 5.6 0.025 3.5 0.0035 5.6 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat waves Can be reflected by a mirror Travel in straight line Both B and C Can not pass through vacuum Can be reflected by a mirror Travel in straight line Both B and C Can not pass through vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Fourier number (defined as a.t/L²) is used in the analysis of problem involving heat transfer by Forced convection Steady state conduction Transient conduction Natural convection Forced convection Steady state conduction Transient conduction Natural convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called Conduction Forced convection Radiation Natural convection Conduction Forced convection Radiation Natural convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which one gives the monochromatic emissive power for black body radiation ? Stefan-Boltzman law Wien's law Planck's law Kirchhoffs law Stefan-Boltzman law Wien's law Planck's law Kirchhoffs law ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multipass heat exchangers are used For low heat load To obtain higher heat transfer co-efficient and shorter tube Because of simplicity of fabrication To reduce the pressure drop For low heat load To obtain higher heat transfer co-efficient and shorter tube Because of simplicity of fabrication To reduce the pressure drop ANSWER DOWNLOAD EXAMIANS APP
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