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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Bulk modulus of a fluid __________ as the pressure increases.

None of these
Increases
Decreases
Remain same

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Hydraulics and Fluid Mechanics in ME
Froude's number is the ratio of inertia force to

Elastic force
Pressure force
Gravity force
Surface tension force

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Hydraulics and Fluid Mechanics in ME
The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by

dQ/Q = 2 × (dH/H)
dQ/Q = 5/2 × (dH/H)
dQ/Q = 3/2 × (dH/H)
dQ/Q = 3 × (dH/H)

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Hydraulics and Fluid Mechanics in ME
The maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of ship, is

0.6
0.4
0.5
0.8

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Hydraulics and Fluid Mechanics in ME
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water

50 cm
52.2 cm
52 cm
51 cm

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Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

absolute pressure
flow
rotation
velocity of fluid

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