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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In order to avoid tendency of separation at throat in a Venturimeter, the ratio of the diameter at throat to the diameter of pipe should be

1/16 to 1/8
1/4 to 1/3
1/8 to 1/4
1/3 to 1/2

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Hydraulics and Fluid Mechanics in ME
The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

1/RN
16/RN
64/RN
4/RN

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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 tc

1000 kg
10 kg
100 kg
1 kg

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Hydraulics and Fluid Mechanics in ME
The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

None of these
Minus
Plus
Divide

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Hydraulics and Fluid Mechanics in ME
The velocity corresponding to Reynold number of 2000 is called

Lower critical velocity
Super-sonic velocity
Sub-sonic velocity
Higher critical velocity

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Hydraulics and Fluid Mechanics in ME
The sheet of water flowing over a notch or a weir is known as

None of these
Nappe or vein
Sill or crest
Orifice

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