Heat Transfer In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator. Increases Remains constant May increase or decrease, depends on the vacuum Decreases Increases Remains constant May increase or decrease, depends on the vacuum Decreases 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 Its evaporation loss Excessive corrosion Uneconomic LMTD Decrease in heat exchanger efficiency Its evaporation loss Excessive corrosion Uneconomic LMTD Decrease in heat exchanger efficiency ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law applies to the heat transfer by None of the listed here conduction radiation convection None of the listed here conduction radiation convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For __________ Prandtl number values, the heat conduction will be negligible in the buffer zone. Low High Extremely low No Low High Extremely low No ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The average heat transfer co-efficient over the entire length of the plate (ha) and the local heat transfer co-efficient (hL), in case of heat transfer over a flat plate in lminar zone is related as Ha= 5hL Ha = 0.8hL Ha = hL Ha = 2hL Ha= 5hL Ha = 0.8hL Ha = hL Ha = 2hL ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called Natural convection Conduction Radiation Forced convection Natural convection Conduction Radiation Forced convection ANSWER DOWNLOAD EXAMIANS APP
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