Heat Transfer Which has the lowest Prandtl number? Aqueous solution Water Liquid metal Lube oil Aqueous solution Water Liquid metal Lube oil ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Increasing the liquor level in the evaporator results in the decreased capacity increase in liquor film co-efficient increased true temperature drop decreased effect of hydrostatic head decreased capacity increase in liquor film co-efficient increased true temperature drop decreased effect of hydrostatic head ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K₀ + at. where, K is the thermal conductivity and T is the temperature (in °K). The units of 'a' in SI system will be W/m.k W/m None, A is just a number W/m.k² W/m.k W/m None, A is just a number W/m.k² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivity of a gas at low density, __________ with increase in temperature. Decreases May increase or decrease; depends on the gas Remains unchanged Increases Decreases May increase or decrease; depends on the gas Remains unchanged Increases 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 For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. Vacuum High pressure None of these Backward feed Vacuum High pressure None of these Backward feed ANSWER DOWNLOAD EXAMIANS APP
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