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# GATE 2023 II Laminar Flow & Turbulent Flow II Quiz 7

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Question 1

A fluid entire a circular pipe with free stream velocity of 5 m/s. The average velocity (in m/s) in developed region of flow is

Question 2

In a laminar flow between two parallel plates with a separation distance of 6 mm, the centre line velocity is 1.8 m/s. The velocity (in m/s) at a distance of 1 mm from the Boundary is _________.

Question 3

The wall shear stress (in N/m2 ) in a pipe of diameter 80 mm which carries water at velocities of the pipe centre and 20 mm from pipe centres are 2 m/s and 1.5 m/s respectively. (Assume turbulent flow)

Question 4

The intensity of turbulence refers to

Question 5

In laminar flow between two parallel plates, the slope of hydraulic gradient line was found to be 0.05. If the discharge remains the same but the viscosity increases by 50% ,the value of new slope of hydraulic gradient line will be.

Question 6

The relation is valid for
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