Heat Transfer In an extended surface heat exchanger, fluid having lower co-efficient Flows through the tube Flows outside the tubes Can flow either inside or outside the tubes Should not be used as it gives very high pressure drop Flows through the tube Flows outside the tubes Can flow either inside or outside the tubes Should not be used as it gives very high pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. Backward feed None of these High pressure Vacuum Backward feed None of these High pressure Vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is 1-1 heat exchanger 1-2 heat exchanger 3-2 heat exchanger 2-4 heat exchanger 1-1 heat exchanger 1-2 heat exchanger 3-2 heat exchanger 2-4 heat exchanger ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For condensation of pure vapors, if the heat transfer co-efficients in filmwise and drop-wise condensation are respectively hf and hd, then hf > hd hf < hd hf = hd hf could be greater or smaller than hd hf > hd hf < hd hf = hd hf could be greater or smaller than hd ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately 50 37 32 45 50 37 32 45 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Baffle spacing Should be less than the inside diameter of the shell Is not the same as baffle pitch Should be less than one fifth the diameter of the shell None of these Should be less than the inside diameter of the shell Is not the same as baffle pitch Should be less than one fifth the diameter of the shell None of these ANSWER DOWNLOAD EXAMIANS APP
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