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GATE ME 2022: Fluid Mechanics (App update required to attempt this test)

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Question 1

Consider steady laminar incompressible axi–symmetric fully developed viscous flow through a straight circular pipe of constant cross – sectional area at a Reynolds number of 5. The ratio of inertia force to viscous force on a fluid particle is

Question 2

Which of the following represents steady non-uniform flow?

Question 3

In an iceberg, 15% of the volume projects above the sea surface. If the specific weight of sea water is 10.5 KN/m3, the specific weight of iceberg in KN/m3 is?

Question 4

A fluid flows through a horizontal pipe of 3 cm diameter. When the Reynold’s number is 1500 and fluid velocity is 2m/s, the head loss over a length of 10m is

(Take g = 10m/)

Question 5

Find the vertical component of force (in kN) acting on tainted gate of 90° sector of radius 6.5m as shown in figure. Take gate depth as unity. ( Correct upto two decimal)

Question 6

Fluid with velocity V flows over a flat plate and at a point δ is the boundary layer thickness. If the velocity is now increased to 9V, the boundary layer thickness (assuming only laminar flow exists) at that point is
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Jun 15ESE & GATE ME