Fluid Mechanics The ratio of hydrodynamic boundary layer to thermal boundary layer thickness in case of liquid metals is > 1 2 < 1 1 > 1 2 < 1 1 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant? Non-uniform Unsteady Turbulent Rotational Non-uniform Unsteady Turbulent Rotational ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 10³ VOM + 10.94 x 10⁶ V²OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is 24 mm/s 12 mm/s 28 mm/s 16 mm/s 24 mm/s 12 mm/s 28 mm/s 16 mm/s ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the Difference in the densities of the particle & fluid Square of particle size All of these Inverse of fluid viscosity Difference in the densities of the particle & fluid Square of particle size All of these Inverse of fluid viscosity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is Greater in 0.5 mm dia tube Greater in 1 mm dia tube Zero in both the tubes Same in both the tubes Greater in 0.5 mm dia tube Greater in 1 mm dia tube Zero in both the tubes Same in both the tubes ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In frictional fluid flow, the quantity, P/ρ + V²/2gc + gz/gc, is Constant along a streamline Increased in the direction of flow Not constant along a streamline None of these Constant along a streamline Increased in the direction of flow Not constant along a streamline None of these ANSWER DOWNLOAD EXAMIANS APP
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