Heat Transfer Radiator of an automobile engine is a __________ type of heat exchanger. Counter-current Co-current Direct contact Cross-current Counter-current Co-current Direct contact Cross-current ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Trap is used to remove __________ from steam pipe lines. Condensate Non-condensables None of these Steam Condensate Non-condensables None of these Steam 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 0.15 0.55 55.5 555 0.15 0.55 55.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The temperature at a distance 100 mm from the dipped end becomes 40°C at time, t = 200 s. The same temperature is achieved at a distance of 200 mm from the dipped end at time t = 356 s t = 800 s t = 400 s t = 283 s t = 356 s t = 800 s t = 400 s t = 283 s ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a forward feed multiple effect evaporator, the pressure is Dependent on the number of effects Same in all effects Highest in last effect Lowest in last effect Dependent on the number of effects Same in all effects Highest in last effect Lowest in last effect ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum absorptivity? Iron plates Aluminium foil Coal dust Refractory bricks Iron plates Aluminium foil Coal dust Refractory bricks ANSWER DOWNLOAD EXAMIANS APP
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