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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Indicator diagram of a reciprocating pump is a graph between

Flow vs. swept volume
Pressure in cylinder vs. swept volume
Flow vs. speed
Pressure vs. speed

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Hydraulics and Fluid Mechanics in ME
The velocity of the liquid flowing through the divergent portion of a Venturimeter

Depends upon mass of liquid
Remains constant
Increases
Decreases

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Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be

First rise and then fall
Nearly horizontal
Steep
Horizontal

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Hydraulics and Fluid Mechanics in ME
The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe)

0.5v²/2g
0.375v²/2g
0.75v²/2g
v²/2g

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Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is less than the critical depth, the flow is called

Critical flow
Torrential flow
Tranquil flow
Turbulent flow

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Hydraulics and Fluid Mechanics in ME
The increase of temperature results in

decrease in viscosity of liquid
increase in viscosity of gas
increase in viscosity of liquid
decrease in viscosity of gas

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