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GATE Prev Year : Fluid Mechanics Test-4
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Question 1
Flow separation in flow past a solid object is caused by
Question 2
If a ball having a density of 0.25 is released from rest from a point 0.5 m below the water surface in the pool and goes upward, then what height above the water level the ball will reach when drag force on ball from water is negligible? Take the g as 10 ms-2.
Question 3
A wooden block of density 450 kg/m3 floats on the surface of a pool of stationary liquid water. Which of the following is a correct free body diagram for this situation, where F=buoyant force, N= normal force, and w = weight?
Question 4
In conservation of mass in fluid flow, if dm / dt = 0, then the fluid flow results:
Question 5
The velocity of fluid 2.234 m/s having a viscosity 0.023 Pa.s with density 2.345 is measured at a distance of 95 mm from the boundary. Find the shear stress at the boundary?
Question 6
A centrifugal pump running at 500 rpm and at its maximum efficiency is delivering a head of 30m at a flow rate of 60 litres per minute. If the rpm is changed to 1000, then the head H in metres and flow rate Q in litres per minute at maximum efficiency are estimated to be
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