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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantities are same

Friction factor and diameter
Friction loss and flow
Length and diameter
Flow and length

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Hydraulics and Fluid Mechanics in ME
Mercury does not wet glass. This is due to property of liquid known as

adhesion
surface tension
cohesion
viscosity

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Hydraulics and Fluid Mechanics in ME
In series-pipe problems

the discharge is same through each pipe
the discharge through each pipe is added to obtain total discharge
the head loss is same through each pipe
a trial solution is not necessary

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Hydraulics and Fluid Mechanics in ME
In a reciprocating pump, air vessels are used to

Increase delivery head
Smoothen the flow
Reduce suction head
Reduce acceleration head

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Hydraulics and Fluid Mechanics in ME
The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm". The pressure at 2.5 m below the oil surface will be

4 m of water column
2 metres of water column
3 metres of water column
3.5 metres of water column

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Hydraulics and Fluid Mechanics in ME
The shear stress-strain graph for a Newtonian fluid is a

Hyperbolic curve
Straight line
Elliptical
Parabolic curve

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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