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Fluid Mechanics

Fluid Mechanics
Bernoull's equation does not apply to the functioning of a/an

Orificem
Pitot tube
None of these
Venturimeter

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Fluid Mechanics
Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will

Data insufficient to predict relative pressure drop
Decrease
Increase
Remain unchanged

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Fluid Mechanics
The hydraulic radius for flow in a rectangular duct of cross-sectional dimension H, W is

√(HW/π)
HW/2(H + W)²
HW/4(H + W)²
2HW/(H + W)²

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Fluid Mechanics
A piezometer opening measures the __________ fluid pressure.

Undisturbed
Total
Static
Dynamic

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Fluid Mechanics
The inherent characteristic of an equal percentage valve relating flow rate 'q' with valve stem movement 'x' are described by the equation

dq/dx = K
dq/dx = K/q
dq/dx = Kq²
dq/dx = K.q

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Fluid Mechanics
N²Re/NFr is called the __________ number.

Brinkman
Archimedes
Euler
Galileo

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