Heat Transfer While the total emissivity of a perfect black body is unity, the same for a real body is between 0 and 1 0 >1 1 between 0 and 1 0 >1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will Decrease by 22 Remain unchanged Increase by 1.8 times Increase by 216 Decrease by 22 Remain unchanged Increase by 1.8 times Increase by 216 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling. film pool none of the listed here transition film pool none of the listed here transition ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body) α T⁴ Independent of T αT α 1/T α T⁴ Independent of T αT α 1/T ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re0.8, where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter (D) as (D)-1.8 (D)0.2 (D)1.8 (D)-0.2 (D)-1.8 (D)0.2 (D)1.8 (D)-0.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of floating head in a heat exchanger is to Avoid buckling of tubes Facilitate its lengthening, if needed Decrease the pressure drop Provide support for tubes Avoid buckling of tubes Facilitate its lengthening, if needed Decrease the pressure drop Provide support for tubes ANSWER DOWNLOAD EXAMIANS APP
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