Heat Transfer With increase in temperature, the thermal conductivity of steel Increases Remains unchanged Increases exponentially Decreases Increases Remains unchanged Increases exponentially Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The non-dimensional temperature gradient in a liquid at the wall of a pipe is the Schmidt number Nusselt number Prandtl number Heat flux Schmidt number Nusselt number Prandtl number Heat flux ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall heat transfer co-efficient for cooling of hydrocarbons by water is about 50 -100 BTU/hr. ft.2°F 1000 - 1500 BTU/hr. ft.2°F 50 -100 W/m² . °K 50 -100 Kcal/hr.m².°C 50 -100 BTU/hr. ft.2°F 1000 - 1500 BTU/hr. ft.2°F 50 -100 W/m² . °K 50 -100 Kcal/hr.m².°C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side. None of these Three pass, fixed tube sheet Single pass, fixed tube sheet U-tube None of these Three pass, fixed tube sheet Single pass, fixed tube sheet U-tube 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? Material of the wall Temperature difference between the two surfaces of the wall Area of the wall perpendicular to heat flow Thickness of the wall Material of the wall Temperature difference between the two surfaces of the wall Area of the wall perpendicular to heat flow Thickness of the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature) √Δt Δt Δt³ Δt² √Δt Δt Δt³ Δt² ANSWER DOWNLOAD EXAMIANS APP
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