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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Liquids transmit pressure equally in all the directions. This is according to

Newton's formula
Pascal's law
Archimedes principle
Boyle's law

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

current meter
hotwire anemometer
pitot tube
venturimeter

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

Screw pump
Centrifugal pump
Air lift pump
Reciprocating pump

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Hydraulics and Fluid Mechanics in ME
The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

0.34 times
0.95 times
0.81 times
0.67 times

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Hydraulics and Fluid Mechanics in ME
A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is

14π R1/2/15Cd × a √(2g)
14π R7/2/15Cd × a √(2g)
14π R5/2/15Cd × a √(2g)
14π R3/2/15Cd × a √(2g)

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Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for 0 to 25 m head of water?

Kaplan turbine
None of these
Pelton wheel
Francis turbine

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