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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A fluid which obeys the Newton's law of viscosity is termed as

Non-Newtonian fluid
Real fluid
Ideal fluid
Newtonian fluid

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the elastic force is called

Reynold's number
Weber's number
Froude's number
Mach number

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Hydraulics and Fluid Mechanics in ME
The depth of center of pressure of an immersed surface, inclined at an angle 'θ' with the liquid surface lies at a distance equal to __________ the center of gravity.

IG sin²θ/Ax̅ above
IG sinθ/Ax̅ below
IG sin²θ/Ax̅ below
IG sinθ/Ax̅ above

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the pressure varies

Cube of fan speed
Square root of fan speed
Directly as fan speed
Square of fan speed

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Hydraulics and Fluid Mechanics in ME
The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.

Remain same
Increases
None of these
Decreases

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water from deep wells?

Centrifugal pump
Air lift pump
Jet pump
Reciprocating pump

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