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ISRO ME 2019 Fluid Mechanics and Machinery 5

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Question 1

Match the tables given below:

Question 2

An inverted U-tube is connected across two pipes A and B carrying fluids as shown. What will be the pressure difference between the centre lines of the pipes ________ N/m². Liquid density=1.1 manometric fluid density=0.7

Question 3

During the experimental determination of metacentric height the movable weight of the ship is found to be 50N & at a distance of 5m from the axis. If the total weight of a ship is 5000N & the angle of tilt is 1˚. The metacentric height is
(tan1˚=0.017)

Question 4

Match the following pairs:

Question 5

A jet of water has 40 mm²area at its orifice. If the coefficient of contraction is 0.58 find the minimum area in mm² at its vena contracta

Question 6

Two venturimeter, with same manometers, of different area ratios are installed in a same pipeline. The reading of 1^st manometer is h and area ratio is 2. If the 2^nd manometer reads 8h, its area ratio is

Question 7

Average velocity of water in the developing region is 5m/s in a pipe laminar flow. What is the maximum velocity in the fully developed region?

Question 8

Glycerin of density 1250 kg/m³ and viscosity 0.72 kg/ms flows through a pipe of 80 mm diameter. If the shear stress at the wall is 300 N/m², the pressure gradient along the flow is