Heat Transfer In a forward feed multiple effect evaporator unit None of these Transfer from effect to effect is done by pumps Viscosity of liquid is highest in first effect No pump is required to withdraw the product from the last effect None of these Transfer from effect to effect is done by pumps Viscosity of liquid is highest in first effect No pump is required to withdraw the product from the last effect ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thickness of thermal boundary layer is more compared to that of hydrodynamic boundary layer, when the value of Prandtl number is < 1 1 > 1 > 5 < 1 1 > 1 > 5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy d²T/dZ² < 0 dT/dZ = 0 d²T/dZ² > 0 d²T/dZ² = 0 d²T/dZ² < 0 dT/dZ = 0 d²T/dZ² > 0 d²T/dZ² = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator. Remains constant Increases May increase or decrease, depends on the vacuum Decreases Remains constant Increases May increase or decrease, depends on the vacuum Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which characteristic of a fluid is not important in deciding its route in a shell and tube heat exchanger? Viscosity Corrosiveness None of these Fouling characteristic Viscosity Corrosiveness None of these Fouling characteristic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. May increase or decrease; depends on the pressure Remain unchanged Decrease Increase May increase or decrease; depends on the pressure Remain unchanged Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
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