Fluid Mechanics As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1 Decreases linearly with V Increases linearly with V Decreases as V² None of these Decreases linearly with V Increases linearly with V Decreases as V² None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Medium viscosity lubricating oil can be most ideally pumped by a __________ pump. Centrifugal Vane Piston Plunger Centrifugal Vane Piston Plunger 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 10 m 11 m 12 m 20 m 10 m 11 m 12 m ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases. All of these NPSH required BHP required by the pump Head of the liquid pumped All of these NPSH required BHP required by the pump Head of the liquid pumped ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury) 1/d D Σ L/σ 1/d D Σ L/σ ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Pressure drag does not depend upon the Pressure of main flow only Roughness of surface of the body All of these Length of the body in flow direction Pressure of main flow only Roughness of surface of the body All of these Length of the body in flow direction ANSWER DOWNLOAD EXAMIANS APP
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