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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The critical depth meter is used to measure

Depth of flow in an open channel
Hydraulic jump
Depth of channel
Velocity of flow in an open channel

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Hydraulics and Fluid Mechanics in ME
Center of pressure on an inclined plane is

At metacentre
At the Centroid
Above the Centroid
Below the Centroid

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Hydraulics and Fluid Mechanics in ME
The centrifugal pump preferred for a specific speed between 80 to 160 r.p.m. is

Medium speed with radial flow at outlet
High speed with radial flow at outlet
High speed with mixed flow at outlet
Slow speed with radial flow at outlet

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is

ω².r²/4g
ω.r/4g
ω².r²/2g
ω.r/2g

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Hydraulics and Fluid Mechanics in ME
The discharge through a small rectangular orifice is given by (where Cd = Coefficient of discharge for the orifice, a = Cross-sectional area of the orifice, h = Height of the liquid above the centre of the orifice)

Q = (3Cd × a)/√(2h)
Q = Cd × a × 2gh
Q = (Cd × a)/√(2gh)
Q = (2/3). Cd × a × h

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Hydraulics and Fluid Mechanics in ME
The flow rate in gear pump

More or less remains constant with increase in pressure
Increases with increase in pressure
Decreases with increase in pressure
Unpredictable

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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