Fluid Mechanics A stream line is Drawn normal to the velocity vector at every point Always the path of particle A line connecting the mid points of flow cross-section Fixed in space in steady flow Drawn normal to the velocity vector at every point Always the path of particle A line connecting the mid points of flow cross-section Fixed in space in steady flow 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. 186.2 12.4 1.8 736.4 186.2 12.4 1.8 736.4 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In laminar flow through a round tube, the discharge varies Linearly as the viscosity Inversely as the pressure drop As the square of the radius Inversely as the viscosity Linearly as the viscosity Inversely as the pressure drop As the square of the radius Inversely as the viscosity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Function of air vessel provided in a reciprocating pump is to Avoid the necessity of priming Increase the pump efficiency Reduce discharge fluctuation Reduce the danger of cavitation Avoid the necessity of priming Increase the pump efficiency Reduce discharge fluctuation Reduce the danger of cavitation ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics If three pipes of different diameters, lengths & friction factors are connected in parallel, then (where, Q = flow rate, V= fluid velocity f = friction factor). V₁ = V₂ = V₃ Q₁ = Q₂ = Q₃ Q = Q₁ + Q₂ + Q₃ F = f₁ + f₂ + f₃ V₁ = V₂ = V₃ Q₁ = Q₂ = Q₃ Q = Q₁ + Q₂ + Q₃ F = f₁ + f₂ + f₃ 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 16 mm/s 28 mm/s 12 mm/s 24 mm/s 16 mm/s 28 mm/s 12 mm/s ANSWER DOWNLOAD EXAMIANS APP
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