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 0.0035 5.6 0.025 3.5 0.0035 5.6 0.025 3.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Electro-magnetic spectrum range, which is important for radiation varies from __________ microns. 0.5 to 50 10 to 100 1 to 100 100 to 1000 0.5 to 50 10 to 100 1 to 100 100 to 1000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of heat transfer by conduction in a hollow cylinder, __________ mean area is used to calculate the heat transfer rate. Logarithmic Arithmetic Either A, B or C Geometric Logarithmic Arithmetic Either A, B or C Geometric ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer jH factor for heat transfer depends upon the __________ number. Nusselt Reynolds Biot Prandtl Nusselt Reynolds Biot Prandtl ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be 0.45 0.55 0.85 0.35 0.45 0.55 0.85 0.35 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum thermal conductivity? Nitrogen Tar Steel Carbon black Nitrogen Tar Steel Carbon black ANSWER DOWNLOAD EXAMIANS APP
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