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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

cohesion
surface tension
adhesion
viscosity

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Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a pressure gauge is called

Mean pressure
Atmospheric pressure
Absolute pressure
Gauge pressure

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Hydraulics and Fluid Mechanics in ME
The time oscillation of a floating body with increase in metacentric height will be

lower/higher depending on weight of body
same
lower
higher

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Hydraulics and Fluid Mechanics in ME
Which of the following is used to measure the discharge ?

venturimeter
pitot tube
hotwire anemometer
current meter

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Hydraulics and Fluid Mechanics in ME
The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is

v₂²/2g
v₁²/2g
0.5 v₁²/2g
0.375 v₂²/2g

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Hydraulics and Fluid Mechanics in ME
A venturi-flume is used to measure

Discharge of liquid
Pressure of liquid
Pressure difference between two points in a channel
Pressure difference between two points in a pipe

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