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Fluid Mechanics | Fluid Dynamics

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Question 1

Match the followings:

Question 2

In a smooth pipe of uniform diameter 25cm, pressure of 50 kPa was observed at section 1 which was at elevation 10m and another section 2, elevation 12 m, the pressure was 20kPa and the velocity in was 1.25m/s. The fluid in the pipe is water. Which of the following statements is true?

Question 3

For a fully developed flow of water in a pipe having diameter 10 cm, velocity 0.2 m/s and kinematic viscosity 10-4 m2/s, the value of darcy friction coefficient is

Question 4

Which forces are neglected to obtain Euler’s equation of motion from Newton’s second law of motion?

Question 5

What is the value of kinetic energy correction factor during a laminar flow?

Question 6

Which is the cheapest device for measuring flow / discharge rate.

Question 7

Match the following and choose the correct answer using the given codes

Question 8

A L-shaped Pitot tube shows a reading of 270 mm. The tube is used to measure the velocity of water stream. What is the velocity measured _________?

Question 9

Water (p = 1000 kg/) flows through a venturimeter with inlet diameter 80 mm and throat diameter 40 mm. The inlet and throat gauge pressures are measured to be 400 kPa and 130 kPa respectively. Assuming the venturimeter to be horizontal and neglecting friction, the inlet velocity (in m/s) is

Question 10

The actual velocity at vena contract for flow through an orifice from a reservoir of height 20 m is _____ take Cv = 0.9 Cd= 0.98 g = 10 m/s2
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