Heat Transfer Finned tube heat exchangers give larger area per tube are used for smaller heat load facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity give larger area per tube are used for smaller heat load facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a multipass shell and tube heat exchanger, providing a baffle on the shell side __________ the heat transfer rate. Decreases Increases Does not affect May increase or decrease, depends on the type of baffle Decreases Increases Does not affect May increase or decrease, depends on the type of baffle ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body is called grey if the monochromatic emissivity of the body is Unity Same for all wavelengths Zero Different for all wavelengths Unity Same for all wavelengths Zero Different for all wavelengths ANSWER DOWNLOAD EXAMIANS APP
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 Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second. 1 30 10 20 1 30 10 20 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are Same Linearly related Different Never different Same Linearly related Different Never different ANSWER DOWNLOAD EXAMIANS APP
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