Heat Transfer Maximum heat transfer rate is obtained in __________ flow. Laminar Creeping Transition region Turbulent Laminar Creeping Transition region Turbulent ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If heat transfer rate varies with the time, it is termed as Monochromatic radiation Forced convection Steady state conduction None of these Monochromatic radiation Forced convection Steady state conduction None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A steel sphere of radius 0.1 m at 400°K is immersed in an oil at 300°K. If the centre of the sphere reaches 350°K in 20 minutes, how long will it take for a 0.05 m radius steel sphere to reach the same temperature (at the centre) under identical conditions ? Assume that the conductive heat transfer co-efficient is infinitely large. 20 minutes 5 minutes 10 minutes 40 minutes 20 minutes 5 minutes 10 minutes 40 minutes 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? Area of the wall perpendicular to heat flow Material of the wall Thickness of the wall Temperature difference between the two surfaces of the wall Area of the wall perpendicular to heat flow Material of the wall Thickness of the wall Temperature difference between the two surfaces of the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are Linearly related Same Different Never different Linearly related Same Different Never different ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a backward feed multiple effect evaporator Feed is introduced in the first effect None of these No pumps are required between successive effects Feed flows from low pressure to high pressure Feed is introduced in the first effect None of these No pumps are required between successive effects Feed flows from low pressure to high pressure ANSWER DOWNLOAD EXAMIANS APP
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