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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a centrifugal pump, the regulating valve is provided on the

Impeller
Suction pipe
Casing
Delivery pipe

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Hydraulics and Fluid Mechanics in ME
The continuity equation is connected with

Open channel/pipe flow
Steady/unsteady flow
Compressibility of fluids
Conservation of mass

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Hydraulics and Fluid Mechanics in ME
In a lock-gate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock)

2p/sinα
2p/sin (α/2)
p/2sinα
p/sinα

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Hydraulics and Fluid Mechanics in ME
The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.

Equal to
Less than
None of these
More than

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Hydraulics and Fluid Mechanics in ME
The dynamic viscosity of the liquid __________ with rise in temperature.

None of these
Remain unaffected
Decreases
Increases

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Hydraulics and Fluid Mechanics in ME
Which of the following manometer has highest sensitivity

micro-manometer with water
inclined U-tube
U-tube with mercury
U-tube with water

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