Heat Transfer Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid when Grashhoff number is very important none of the listed here for fluids in laminar flow for fluids in tubulent flow when Grashhoff number is very important none of the listed here for fluids in laminar flow for fluids in tubulent flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number for full developed, laminar, constant property flow in a pipe at uniform heat flux is 83 4.364 0.72 18 83 4.364 0.72 18 ANSWER DOWNLOAD EXAMIANS APP
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 ) (ΔT)1/4 (ΔT)2 None of the listed here ΔT (ΔT)1/4 (ΔT)2 None of the listed here ΔT ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A dephlegmator is a Double pipe heat exchanger Vacuum evaporator Partial condenser Total condenser Double pipe heat exchanger Vacuum evaporator Partial condenser Total condenser ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer It is not preferable to use superheated steam in evaporators, because of its very none of the listed here low film co-efficient high temperature high pressure none of the listed here low film co-efficient high temperature high pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A BTU/hr.ft.2 °F is equal to 1 kcal/hr. m².°K 4.88 kcal/hr. m.2°C 1 kcal/hr. m²°C None of these 1 kcal/hr. m².°K 4.88 kcal/hr. m.2°C 1 kcal/hr. m²°C None of these ANSWER DOWNLOAD EXAMIANS APP
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