Fluid Mechanics Shear stress in a fluid flowing in a round pipe Is zero at the centre and varies linearly with the radius Varies parabolically across the cross-section Is zero at the wall and increases linearly to the centre Remains constant over the cross-section Is zero at the centre and varies linearly with the radius Varies parabolically across the cross-section Is zero at the wall and increases linearly to the centre Remains constant over the cross-section ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Foot valves are provided in the suction line of a centrifugal pump to Remove the contaminant present in the liquid Avoid priming, every time we start the pump Minimise the fluctuation in discharge Control the liquid discharge Remove the contaminant present in the liquid Avoid priming, every time we start the pump Minimise the fluctuation in discharge Control the liquid discharge ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Cavitation in a centrifugal pump can be avoided by keeping the Outlet pressure low Inlet pressure high Outlet pressure high Inlet pressure low Outlet pressure low Inlet pressure high Outlet pressure high Inlet pressure low 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). F = f₁ + f₂ + f₃ Q = Q₁ + Q₂ + Q₃ V₁ = V₂ = V₃ Q₁ = Q₂ = Q₃ F = f₁ + f₂ + f₃ Q = Q₁ + Q₂ + Q₃ V₁ = V₂ = V₃ Q₁ = Q₂ = Q₃ ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062. 20 m 12 m 11 m 10 m 20 m 12 m 11 m 10 m ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Low specific speed of a pump implies that, it is a/an __________ pump. None of these Mixed flow Centrifugal Axial flow None of these Mixed flow Centrifugal Axial flow ANSWER DOWNLOAD EXAMIANS APP
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