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Hydraulics and Fluid Mechanics in ME

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

higher
lower
lower/higher depending on weight of body
same

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

Liquid discharge
Pressure in gases
Pressure in liquids
Gas velocities

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Hydraulics and Fluid Mechanics in ME
The discharge through a siphon spillway is

Cd × a × √(2g) × H2
Cd × a × √(2g) × H5/2
Cd × a × √(2gH)
Cd × a × √(2g) × H3/2

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is generally used to pump highly viscous fluid?

Air lift pump
Screw pump
Reciprocating pump
Centrifugal pump

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Hydraulics and Fluid Mechanics in ME
Centrifugal pump is started with its delivery valve

Irrespective of any position
Kept fully open
Kept 50% open
Kept fully closed

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Hydraulics and Fluid Mechanics in ME
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if

The area is vertical
The area is horizontal
The area is inclined
All of these

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