Heat Transfer The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns. 5-50 0.5-50 0.38-0.78 100-1000 5-50 0.5-50 0.38-0.78 100-1000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling? Square pitch Diagonal square pitch None of these Triangular pitch Square pitch Diagonal square pitch None of these Triangular pitch ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The outlet temperature of cooling water in a heat exchanger is generally not allowed to exceed above 50°C in industrial practice mainly to avoid Uneconomic LMTD Decrease in heat exchanger efficiency Excessive corrosion Its evaporation loss Uneconomic LMTD Decrease in heat exchanger efficiency Excessive corrosion Its evaporation loss ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger, floating head is provided to increase the heat transfer area relieve stresses caused by thermal expansion facilitate cleaning of the exchanger increase log mean temperature gradient increase the heat transfer area relieve stresses caused by thermal expansion facilitate cleaning of the exchanger increase log mean temperature gradient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Value of Nusselt number [Nu = (hD/k)] for the heat transfer by conduction from a droplet or a spherical particle to a surrounding stagnant film is 0.5 100 10 2 0.5 100 10 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe whose surface temperature remains constant is 3.66 88.66 Dependent on NRe only 1.66 3.66 88.66 Dependent on NRe only 1.66 ANSWER DOWNLOAD EXAMIANS APP
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