Fluid Mechanics The equivalent diameter for pressure drop calculation for a duct of square cross-section is given by(where, x = each side of the square duct) 2x x x/2 πx 2x x x/2 πx ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics As per Newton's law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to(where, μ = fluid viscosity) μ 1/μ² 1/μ μ² μ 1/μ² 1/μ μ² ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Laminar flow is characterised by the nonexistence of Deviating velocities Pressure fluctuation All of these Eddies Deviating velocities Pressure fluctuation All of these Eddies ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In frictional fluid flow, the quantity, P/ρ + V²/2gc + gz/gc, is None of these Constant along a streamline Not constant along a streamline Increased in the direction of flow None of these Constant along a streamline Not constant along a streamline Increased in the direction of flow ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Delivery of insufficient quantity of liquid by a pump may be caused by Too high a lift Low rpm Air leak in the inlet All of these Too high a lift Low rpm Air leak in the inlet All of these 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 16 mm/s 24 mm/s 28 mm/s 12 mm/s 16 mm/s 24 mm/s 28 mm/s 12 mm/s ANSWER DOWNLOAD EXAMIANS APP
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