Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Liquids Gases Solids Both solids & liquids Liquids Gases Solids Both solids & liquids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A composite flat wall of a furnace is made of two materials 'A' and 'B'. The thermal conductivity of 'A' is twice of that of material 'B', while the thickness of layer of 'A' is half that of B. If the temperature at the two sides of the wall are 400 and 1200°K, then the temperature drop (in °K) across the layer of material 'A' is 150 125 160 133 150 125 160 133 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following accessories is provided in the vapor line of an evaporator for removing the entrained liquid? Catchall Vent Bleed point Baffle Catchall Vent Bleed point Baffle ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator is not influenced much by the rate of heat transfer ratio of the weight of the thin liquor to thick liquor temperature of the feed boiling point elevations rate of heat transfer ratio of the weight of the thin liquor to thick liquor temperature of the feed boiling point elevations 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 Decrease in heat exchanger efficiency Its evaporation loss Excessive corrosion Uneconomic LMTD Decrease in heat exchanger efficiency Its evaporation loss Excessive corrosion Uneconomic LMTD ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Molten sodium Water Air Dowtherm Molten sodium Water Air Dowtherm ANSWER DOWNLOAD EXAMIANS APP
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