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 Fouling factor None of these Does not provide a safety factor for design Accounts for additional resistances to heat flow Is a dimensionless quantity None of these Does not provide a safety factor for design Accounts for additional resistances to heat flow Is a dimensionless quantity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An evaporator while concentrating an aqueous solution from 10 to 40% solids evaporates 30000 kg of water. The amount of solids handled by the system in kg is 4600 9000 3000 4000 4600 9000 3000 4000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction in the turbulent core of a fluid flowing through a heated pipe is negligible, if the value of Prandtl number is 0.8 0.4 0.6 0.2 0.8 0.4 0.6 0.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A graph between __________ is called Wilson plot. V0.8 Vs . U 1/v0.8 Vs . U 1/U Vs . 1/v0.8 1/U Vs . 1/V V0.8 Vs . U 1/v0.8 Vs . U 1/U Vs . 1/v0.8 1/U Vs . 1/V ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator. Decreases Remains constant May increase or decrease, depends on the vacuum Increases Decreases Remains constant May increase or decrease, depends on the vacuum Increases ANSWER DOWNLOAD EXAMIANS APP
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