Heat Transfer For a cold dilute feed to produce thick viscous liquor, backward feeding as compared to forward feeding results in Decreased economy Increased economy Lower capacity No effect on economy Decreased economy Increased economy Lower capacity No effect on economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature) (ΔT)⁴ √(ΔT) (ΔT)³ (ΔT)² (ΔT)⁴ √(ΔT) (ΔT)³ (ΔT)² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law of heat conduction applies to __________ surfaces. Both A and B Non-isothermal Neither A and B Isothermal Both A and B Non-isothermal Neither A and B Isothermal 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 55.5 0.55 555 0.15 55.5 0.55 555 0.15 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For what value of Prandtl number, the Col-burn analogy is valid ? 0.06 to 120 l to 50 1 to 103 0.6 to 120 0.06 to 120 l to 50 1 to 103 0.6 to 120 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place Between two bodies in physical contact with each other Both B & C From one part of a body to the another part of the same body Between two bodies not in physical contact with each other Between two bodies in physical contact with each other Both B & C From one part of a body to the another part of the same body Between two bodies not in physical contact with each other ANSWER DOWNLOAD EXAMIANS APP
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