Heat Transfer The actual temperature drop across the heating surface of an evaporator depends on the Liquid depth over the heating surface All of these Solution being evaporated Pressure difference between the steam chest and the vapor space above the boiling liquid Liquid depth over the heating surface All of these Solution being evaporated Pressure difference between the steam chest and the vapor space above the boiling liquid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally Remains unchanged Decreases Increases Increases exponentially Remains unchanged Decreases Increases Increases exponentially ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the total emissivity of conductors Remains same Increases Decreases Decreases linearly Remains same Increases Decreases Decreases linearly 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. Elastic Viscous Inertial None of these Elastic Viscous Inertial None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe, where the wall heat flux is constant, is 120.36 Dependent on NRe only 2.36 4.36 120.36 Dependent on NRe only 2.36 4.36 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, NPr = Prandtl number) NPr NPr-1/3 NPr1/3 NPr-1 NPr NPr-1/3 NPr1/3 NPr-1 ANSWER DOWNLOAD EXAMIANS APP
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