Fluid Mechanics The bulk modulus of elasticity of a liquid Decreases with pressure Is independent of temperature & pressure Is zero for incompressible liquid Increases with pressure Decreases with pressure Is independent of temperature & pressure Is zero for incompressible liquid Increases with pressure 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) 1/μ μ μ² 1/μ² 1/μ μ μ² 1/μ² 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 12 mm/s 24 mm/s 28 mm/s 16 mm/s 12 mm/s 24 mm/s 28 mm/s ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The equivalent diameter for flow through a rectangular duct of width B and height H is HB/(H + B) 4HB/(H + B) HB/2(H + B) 2HB/(H + B) HB/(H + B) 4HB/(H + B) HB/2(H + B) 2HB/(H + B) ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The peripherial velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec. 736.4 12.4 1.8 186.2 736.4 12.4 1.8 186.2 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Velocity distribution for flow between two fixed parallel plates Is zero at the plates and increases linearly to the midplane Varies parabolically across the section Is constant over the entire cross-section None of these Is zero at the plates and increases linearly to the midplane Varies parabolically across the section Is constant over the entire cross-section None of these ANSWER DOWNLOAD EXAMIANS APP
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