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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Hot wire anemometer is used to measure

Liquid discharge
Pressure in gases
Gas velocities
Pressure in liquids

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Hydraulics and Fluid Mechanics in ME
The velocity at which the laminar flow stops, is known as

None of these
Higher critical velocity
Lower critical velocity
Velocity of approach

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Hydraulics and Fluid Mechanics in ME
The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is

600 kg/m3
800 kg/m3
400 kg/m3
200 kg/m3

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Hydraulics and Fluid Mechanics in ME
Specific weight of water in S.I. units is equal to

1000 N/m3
10000 N/m3
9.81 xlO6 N/m3
9.81 xlO3 N/m3

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Hydraulics and Fluid Mechanics in ME
The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

1.855 aH.√(2g)
0.855 a.√(2gH)
5.85 aH.√(2g)
1.585 a.√(2gH)

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Hydraulics and Fluid Mechanics in ME
An impulse turbine is used for

High head of water
High discharge
Low head of water
Medium head of water

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