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. None of these Vacuum Backward feed High pressure None of these Vacuum Backward feed High pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashoff number, which is defined as g . β(Ts - T∞) ρ². L³/μ², is proportional to the ratio of buoyancy force to __________ force. Viscous None of these Elastic Inertial Viscous None of these Elastic Inertial ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivity of a gas at low density, __________ with increase in temperature. May increase or decrease; depends on the gas Remains unchanged Increases Decreases May increase or decrease; depends on the gas Remains unchanged Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer. the least the largest lower no the least the largest lower no ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Black liquor generated during paper manufacture is concentrated in a multiple effect evaporators followed by a crystalliser multiple effect evaporator single effect evaporator single effect evaporator followed by a crystalliser multiple effect evaporators followed by a crystalliser multiple effect evaporator single effect evaporator single effect evaporator followed by a crystalliser ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical? > 1 None of these < 1 1 > 1 None of these < 1 1 ANSWER DOWNLOAD EXAMIANS APP
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