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Fluid Mechanics

Fluid Mechanics
Cd is always __________ Cc.

Less than
Either more or less than
Greater than
Equal to

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Fluid Mechanics
The equivalent diameter for pressure drop calculation for a duct of square cross-section is given by(where, x = each side of the square duct)

2x
x/2
πx
x

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Fluid Mechanics
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant?

Unsteady
Rotational
Non-uniform
Turbulent

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Fluid Mechanics
The nominal size of a hose pipe is specified by its

None of these
O.D.
Thickness
I.D.

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Fluid Mechanics
Boundary layer thickness in laminar flow over a flat plate increases as(where, d = distance from the leading edge.)

d2
d2/3
d1/3
√d

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Fluid Mechanics
What causes cavitation in centrifugal pump?

High suction pressure
High suction velocity
Low barometric pressure
Low suction pressure

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MORE MCQ ON Fluid Mechanics

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