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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Power required to drive a centrifugal pump is directly proportional to _________ of its impeller.

Cube of diameter
Square of diameter
Diameter
Fourth power of diameter

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Hydraulics and Fluid Mechanics in ME
In a Francis turbine runner, the numbers of blades are generally between

8 to 16
16 to 24
2 to 4
4 to 8

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called

adhesion
viscosity
compressibility
cohesion

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Hydraulics and Fluid Mechanics in ME
A flow is called super-sonic if the

Velocity of flow is very high
Discharge is difficult to measure
None of these
Mach number is between 1 and 6

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Hydraulics and Fluid Mechanics in ME
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea

hot wire anemometer
pitot tube
rotameter
Venturimeter

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Hydraulics and Fluid Mechanics in ME
A thick liquid like syrup has a ___ viscosity than a light liquid like water.

Greater
Same
None of the listed here
Lesser

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