Heat Transfer Nusselt number is a function of Prandtl number and __________ number of fluid in natural convection heat transfer. Reynolds Grashoff Biot Stantan Reynolds Grashoff Biot Stantan 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 555 55.5 0.15 0.55 555 55.5 0.15 0.55 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For what value of Prandtl number, the Col-burn analogy is valid ? l to 50 0.6 to 120 1 to 103 0.06 to 120 l to 50 0.6 to 120 1 to 103 0.06 to 120 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the None of these Heat transfer area Heating volume Nusselt number None of these Heat transfer area Heating volume Nusselt number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, the tube side heat transfer co-efficient just at the entrance of the tube is None of these Same as average heat transfer co-efficient for tube side Infinity Zero None of these Same as average heat transfer co-efficient for tube side Infinity Zero ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam is routed through the tube in case of a __________ evaporator. Basket type Horizontal tube Short tube vertical Long tube vertical Basket type Horizontal tube Short tube vertical Long tube vertical ANSWER DOWNLOAD EXAMIANS APP
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