Heat Transfer A BTU/hr.ft.2 °F is equal to None of these 1 kcal/hr. m²°C 4.88 kcal/hr. m.2°C 1 kcal/hr. m².°K None of these 1 kcal/hr. m²°C 4.88 kcal/hr. m.2°C 1 kcal/hr. m².°K 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 Decreases Remains unaffected Increases exponentially Increases Decreases Remains unaffected Increases exponentially Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A metal ball of radius 0.1 m at a uniform temperature of 90°C is left in air at 30°C. The density and the specific heat of the metal are 3000 kg/m³ and 0.4 kJ/kg.K respectively. The heat transfer co-efficient is 50 W/m².K Neglecting the temperature gradients inside the ball, the time taken (in hours) for the ball to cool to 60°C is 0.15 555 55.5 0.55 0.15 555 55.5 0.55 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 Passes through a maxima Remains constant Decreases Increases Passes through a maxima Remains constant Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, conduction is negligible in the turbulent core of a fluid flowing through a heated pipe? > 0.6 < 0.1 0.5 < 0.5 > 0.6 < 0.1 0.5 < 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C. 4.88 None of these 1.49 1 4.88 None of these 1.49 1 ANSWER DOWNLOAD EXAMIANS APP
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