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Mechanical Engineering - Hydraulics and Fluid Mechanics

Exercise : Hydraulics and Fluid Mechanics - Section 3
36.
When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is
1.84(L - 0.1nH)H3/2
1.84(L - nH)H2
1.84(L - 0.1nH)H5/2
1.84(L - nH)H3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
The total energy line lies over the centre line of the pipe by an amount equal to
pressure head
velocity head
pressure head + velocity head
pressure head - velocity head
Answer: Option
Explanation:
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38.
A piezometer tube is used only for measuring
low pressure
high pressure
moderate pressure
vacuum pressure
Answer: Option
Explanation:
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39.
The flow in a pipe is turbulent when Reynold number is
less than 2000
between 2000 and 2800
more than 2800
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
When a tank containing liquid moves with an acceleration in the horizontal direction, then the free surface of the liquid
remains horizontal
becomes curved
falls on the front end
falls on the back end
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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