Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe whose surface temperature remains constant is Dependent on NRe only 3.66 1.66 88.66 Dependent on NRe only 3.66 1.66 88.66 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator depends upon the Neither A nor B Both A and B Rate of heat transfer Heat balance consideration Neither A nor B Both A and B Rate of heat transfer Heat balance consideration ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Choose the most important factor on which the heat conducted through a wall in a unit time will depend on? Temperature difference between the two surfaces of the wall Material of the wall Area of the wall perpendicular to heat flow Thickness of the wall Temperature difference between the two surfaces of the wall Material of the wall Area of the wall perpendicular to heat flow Thickness of the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest Prandtl number? Water Transformer oil Molten sodium (a coolant used in fast breeder reactor) Dilute H₂SO₄ Water Transformer oil Molten sodium (a coolant used in fast breeder reactor) Dilute H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, The temperature drop is inversely proportional to the resistance across which the drop occurs There is no relationship between temperature drop and resistance The relationship is not generalised The temperature drops in the two fluids and the wall are proportional to individual resistances The temperature drop is inversely proportional to the resistance across which the drop occurs There is no relationship between temperature drop and resistance The relationship is not generalised The temperature drops in the two fluids and the wall are proportional to individual resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer rate described by Fourier's law will decrease, if the __________ increases. Heat transfer area Temperature difference Thickness Thermal conductivity Heat transfer area Temperature difference Thickness Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
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