Heat Transfer The film thickness for laminar film condensation on vertical surface __________ from top to bottom. Remains constant Cummulatively decreases And the surface conductance increase Cummulatively increases Remains constant Cummulatively decreases And the surface conductance increase Cummulatively increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water always boils when its Temperature reaches 100° C Vapour pressure equals 76 cm of Hg Saturated vapour pressure is less than the atmospheric pressure Saturated vapour pressure equals the external pressure on its surface Temperature reaches 100° C Vapour pressure equals 76 cm of Hg Saturated vapour pressure is less than the atmospheric pressure Saturated vapour pressure equals the external pressure on its surface 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) NPr1/3 NPr NPr-1 NPr-1/3 NPr1/3 NPr NPr-1 NPr-1/3 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The driving potential for the crystal growth during crystallisation is the __________ of the solution. Concentration Viscosity Super-saturation Density Concentration Viscosity Super-saturation Density ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second. 1 30 10 20 1 30 10 20 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the Temperature gradient produced due to density difference Buoyancy of the bubbles produced at active nucleation site None of these Existence of thermal boundary layer Temperature gradient produced due to density difference Buoyancy of the bubbles produced at active nucleation site None of these Existence of thermal boundary layer ANSWER DOWNLOAD EXAMIANS APP
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