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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The flow in a pipe is neither laminar nor turbulent when Reynold number is

More than 2800
None of these
Between 2000 and 2800
Less than 2000

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Hydraulics and Fluid Mechanics in ME
With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will

Depend upon the characteristics of liquid
Increase
Decrease
Remain unchanged

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Hydraulics and Fluid Mechanics in ME
A differential manometer is used to measure

Pressure in pipes and channels
Atmospheric pressure
Pressure in Venturimeter
Difference of pressures between two points in a pipe

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Hydraulics and Fluid Mechanics in ME
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)

w × Q × H
w × Q × hf
w × Q (H + hf)
w × Q (H - hf)

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Hydraulics and Fluid Mechanics in ME
The unit of viscosity is

Newton-sec per meter
Newton-sec per meter²
Meters² per sec
kg-sec/meter

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Hydraulics and Fluid Mechanics in ME
A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to

1000 kg
10 kg
100 kg
1 kg

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