Heat Transfer The average heat transfer co-efficient for laminar film condensation on vertical surface is inversely proportional to (where, ΔT = Temperature drop across condensate film ) None of the listed here (ΔT)2 (ΔT)1/4 ΔT None of the listed here (ΔT)2 (ΔT)1/4 ΔT ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling point elevation of a solution of NaOH Increases rapidly with temperature rise Is almost independent of pressure Is almost independent of temperature Both B and C Increases rapidly with temperature rise Is almost independent of pressure Is almost independent of temperature Both B and C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy d²T/dZ² = 0 dT/dZ = 0 d²T/dZ² < 0 d²T/dZ² > 0 d²T/dZ² = 0 dT/dZ = 0 d²T/dZ² < 0 d²T/dZ² > 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In an extended surface heat exchanger, fluid having lower co-efficient Flows through the tube Can flow either inside or outside the tubes Should not be used as it gives very high pressure drop Flows outside the tubes Flows through the tube Can flow either inside or outside the tubes Should not be used as it gives very high pressure drop Flows outside the tubes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam is routed through the tube in case of a __________ evaporator. Horizontal tube Basket type Long tube vertical Short tube vertical Horizontal tube Basket type Long tube vertical Short tube vertical ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiation heat losses from satisfactorily insulated high pressure boilar may be about __________ percent. 18 26 1 7 18 26 1 7 ANSWER DOWNLOAD EXAMIANS APP
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