Heat Transfer Prandtl number is the reciprocal of Thermal diffusivity x Mass diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Momentum Mass diffusivity x Momentum diffusivity Thermal diffusivity x Mass diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Momentum Mass diffusivity x Momentum diffusivity 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 2.36 Dependent on NRe only 4.36 120.36 2.36 Dependent on NRe only 4.36 120.36 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The capacity of double-effect evaporator is less than half of the capacity of two single effects, each of which is operating over same terminal temperature difference, when the Evaporators operate under vacuum Evaporators opreate at atmospheric pressure Solution has an elevation of boiling point None of these Evaporators operate under vacuum Evaporators opreate at atmospheric pressure Solution has an elevation of boiling point None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer LMTD for counterflow and prallel flow heat exchanger will be the same, when the Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid) Outlent temperature of both the hot and cold fluid are same None of these Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid) Outlent temperature of both the hot and cold fluid are same None of these Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Air Dowtherm Molten sodium Water Air Dowtherm Molten sodium Water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In which mode of heat transfer, the Biot number is important? Forced convection Natural convection Transient heat conduction Radiation Forced convection Natural convection Transient heat conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
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