Heat Transfer A sphere of radius 'R₁' is enclosed in a sphere of radius 'R₂'. The view (or shape) factor for radiative heat transfer of the outer sphere with respect to the inner sphere is 1 (R₁/R₂)2 R₂/(R₁+R₂) 1 (R₁/R₂)2 R₂/(R₁+R₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which area is used in case of heat flow by conduction through a cylinder ? None of the listed here Arithmetic mean area Geometric mean area Logarithmic mean area None of the listed here Arithmetic mean area Geometric mean area Logarithmic mean area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, There is no relationship between temperature drop and resistance The temperature drop is inversely proportional to the resistance across which the drop occurs The temperature drops in the two fluids and the wall are proportional to individual resistances The relationship is not generalised There is no relationship between temperature drop and resistance The temperature drop is inversely proportional to the resistance across which the drop occurs The temperature drops in the two fluids and the wall are proportional to individual resistances The relationship is not generalised ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer Remains unaffected Decreases Increases exponentially Increases Remains unaffected Decreases Increases exponentially Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The value of Stefan-Boltazman constant in SI unit is 0.1714 x 10-8kcal/m². °K4 0.1714 x 10-8W/m².°K4 5.6697 x 10-8W/m².°K4 5.6697 x 10-8kcal/m² . °K4 0.1714 x 10-8kcal/m². °K4 0.1714 x 10-8W/m².°K4 5.6697 x 10-8W/m².°K4 5.6697 x 10-8kcal/m² . °K4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is 2-4 heat exchanger 3-2 heat exchanger 1-2 heat exchanger 1-1 heat exchanger 2-4 heat exchanger 3-2 heat exchanger 1-2 heat exchanger 1-1 heat exchanger ANSWER DOWNLOAD EXAMIANS APP
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