Fluid Mechanics Shear stress in a fluid flowing in a round pipe Remains constant over the cross-section Is zero at the wall and increases linearly to the centre Is zero at the centre and varies linearly with the radius Varies parabolically across the cross-section Remains constant over the cross-section Is zero at the wall and increases linearly to the centre Is zero at the centre and varies linearly with the radius Varies parabolically across the cross-section ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Select the wrong statement pertaining to flow of an incompressible fluid through a venturimeter. For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that leaving the venturimeter Venturimeter incurs less power loss compared to an equivalent orificemeter Discharge of fluid through a venturimeter depends upon the gage difference irrespective of the orientation of venturimeter Venturimeter occupies less space than an orificemeter For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that leaving the venturimeter Venturimeter incurs less power loss compared to an equivalent orificemeter Discharge of fluid through a venturimeter depends upon the gage difference irrespective of the orientation of venturimeter Venturimeter occupies less space than an orificemeter ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will Remain unchanged Decrease Data insufficient to predict relative pressure drop Increase Remain unchanged Decrease Data insufficient to predict relative pressure drop Increase 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 28 mm/s 16 mm/s 24 mm/s 12 mm/s 28 mm/s 16 mm/s 24 mm/s 12 mm/s ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A venturimeter can not be used for the direct measurement of Pressure difference in the flow throughpipeline Datum difference in the stretch of pipeflow Friction loss in pipe flow All of these Pressure difference in the flow throughpipeline Datum difference in the stretch of pipeflow Friction loss in pipe flow All of these ANSWER DOWNLOAD EXAMIANS APP
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