Heat Transfer For a cold dilute feed to produce thick viscous liquor, backward feeding as compared to forward feeding results in Decreased economy Lower capacity No effect on economy Increased economy Decreased economy Lower capacity No effect on economy Increased economy 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 0.55 0.15 55.5 555 0.55 0.15 55.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Molten sodium Air Water Dowtherm Molten sodium Air Water Dowtherm ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the None of these Existence of thermal boundary layer Buoyancy of the bubbles produced at active nucleation site Temperature gradient produced due to density difference None of these Existence of thermal boundary layer Buoyancy of the bubbles produced at active nucleation site Temperature gradient produced due to density difference ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Leidenfrost point is a term concerned with the Condensation of the saturated vapor on a cold surface Heat transfer between two highly viscous liquids Concentration of a corrosive solution by evaporation Boiling of a liquid on a hot surface Condensation of the saturated vapor on a cold surface Heat transfer between two highly viscous liquids Concentration of a corrosive solution by evaporation Boiling of a liquid on a hot surface ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters is increased by use of finned tube in a multipass shell and tube heat exchanger? All of these Effective tube surface area for convective heat transfer Convective heat transfer co-efficient Tube side pressure drop and the heat transfer rate All of these Effective tube surface area for convective heat transfer Convective heat transfer co-efficient Tube side pressure drop and the heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
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