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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.

1.8 times
Double
1.2 times
Equal to

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Hydraulics and Fluid Mechanics in ME
The unit of viscosity is

kg-sec/meter
Newton-sec per meter²
Newton-sec per meter
Meters² per sec

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Hydraulics and Fluid Mechanics in ME
The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is

0.0611 stoke
0.116 stoke
0.611 stoke
0.0116 stoke

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Hydraulics and Fluid Mechanics in ME
Centre of pressure compared to e.g. is

above it
at same point
below it
above or below depending on area of body

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Hydraulics and Fluid Mechanics in ME
A hydraulic coupling belongs to the category of

Power developing machines
Energy generating machines
Power absorbing machines
Energy transfer machines

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Hydraulics and Fluid Mechanics in ME
For starting an axial flow pump, its delivery valve should be

Depends on starting condition and flow desired
Open
Closed
Could be either open or closed

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