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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The depth of the bucket for a Pelton wheel is generally _________ the diameter of jet.

1.2 times
Double
1.8 times
Equal to

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Hydraulics and Fluid Mechanics in ME
Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of

0.688
0.848
0.392
0.492

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

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

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Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a Piezometer tube is in

Head of liquid
N/mm2
All of these
N/m2

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Hydraulics and Fluid Mechanics in ME
For hypersonic flow, the Mach number is

greater than 4
greater than 2
greater than unity
unity

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump casing, the flow of water leaving the impeller, is

Free vortex motion
Forced vortex
Rectilinear flow
Radial flow

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