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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Which of the following instrument can be used for measuring speed of an aeroplane

rotameter
Venturimeter
pitot tube
Orifice plate

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Hydraulics & Fluid Mechanics
The discharge over a broad crested weir is maximum when the depth of flow is (where H is the available head)

H/2
H/3
2 H/3
2 H/5

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Hydraulics & Fluid Mechanics
At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be

negative value
minimum
maximum
could be any value

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Hydraulics & Fluid Mechanics
Flow at constant rate through a tapering pipe is i) steady flow ii) uniform flow iii) unsteady flow iv) non-uniform flow The correct answer is

(i) and (ii)
(ii) and (iv)
(ii) and (iii)
(i)and(iv)

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Hydraulics & Fluid Mechanics
The surface tension of mercury at normal temperature compared to that of water is

same
more or less depending on size of glass tube
less
more

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Hydraulics & Fluid Mechanics
Normal depth in open channel flow is the depth of flow corresponding to

laminar flow
Steady flow
unsteady flow
uniform flow

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MORE MCQ ON Hydraulics & Fluid Mechanics

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