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HYDRAULICS AND FLUID MECHANICS IN ME

Hydraulics and Fluid Mechanics in ME
The speed of sound in a ideal gas varies directly as its

temperature
density
absolute temperature
modulus of elasticity

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Hydraulics and Fluid Mechanics in ME
The velocity of jet of water travelling out of opening in a tank filled with water is proportional to

h2
h2
V/T
head of water (h)

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Hydraulics and Fluid Mechanics in ME
The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is (where R is radius of pipe)

0.423 R
0.223 R
0.707 R
0.577 R

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Hydraulics and Fluid Mechanics in ME
A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ?

0.5
0.515
0.4
0.5

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Hydraulics and Fluid Mechanics in ME
The pitot tube is used to measure

stagnation pressure
dynamic pressure
static pressure
velocity at stagnation point

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