Heat Transfer In pipe flow, heat is transferred from hot wall to the liquid by Conduction only Forced convection and conduction Free and forced convection Forced convection only Conduction only Forced convection and conduction Free and forced convection Forced convection only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is unimportant in forced convection ? none of the listed here Prandtl number Grashhoff number Reynolds number none of the listed here Prandtl number Grashhoff number Reynolds number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall heat transfer co-efficient for cooling of hydrocarbons by water is about 50 -100 W/m² . °K 1000 - 1500 BTU/hr. ft.2°F 50 -100 Kcal/hr.m².°C 50 -100 BTU/hr. ft.2°F 50 -100 W/m² . °K 1000 - 1500 BTU/hr. ft.2°F 50 -100 Kcal/hr.m².°C 50 -100 BTU/hr. ft.2°F ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator? Agitated film evaporator Calenderia vertical tube evaporator Horizontal tube evaporator Long vertical evaporator Agitated film evaporator Calenderia vertical tube evaporator Horizontal tube evaporator Long vertical evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger with steam outside the tubes, a liquid gets heated to 45°C, when its flow velocity in the tubes is 2 m/s. If the flow velocity is reduced to 1 m/s, other things remaining the same, the temperature of the exit liquid will be Equal to 45°C More than 45°C Less than 45°C Initially decreases and remains constant thereafter Equal to 45°C More than 45°C Less than 45°C Initially decreases and remains constant thereafter ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For shell and tube heat exchanger, with increasing heat transfer area, the purchased cost per unit heat transfer area Increases Remains constant Passes through a maxima Decreases Increases Remains constant Passes through a maxima Decreases ANSWER DOWNLOAD EXAMIANS APP
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