Fluid Mechanics The equivalent diameter for flow through a rectangular duct of width B and height H is 2HB/(H + B) HB/(H + B) HB/2(H + B) 4HB/(H + B) 2HB/(H + B) HB/(H + B) HB/2(H + B) 4HB/(H + B) 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 12 mm/s 28 mm/s 16 mm/s 24 mm/s 12 mm/s 28 mm/s 16 mm/s 24 mm/s ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively). B is above G G is above B B & G coincide None of these B is above G G is above B B & G coincide None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Pressure drop in a fluidised bed reactor is __________ that in a similar packed bed reactor. Less than None of these More than Same as Less than None of these More than Same as ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Slurries can be most conveniently pumped by a __________ pump. Gear Screw Reciprocating Centrifugal Gear Screw Reciprocating Centrifugal ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The hydrodynamic and thermal boundary layers will merge, when Prandtl number is one Archimedes number is greater than 10000 Nusselt number tends to infinity Schmidt number tends to infinity Prandtl number is one Archimedes number is greater than 10000 Nusselt number tends to infinity Schmidt number tends to infinity ANSWER DOWNLOAD EXAMIANS APP
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