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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
All the terms of energy in Bernoulli’s equation have dimension of

energy
mass
work
length

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Hydraulics and Fluid Mechanics in ME
A vessel of 4 m3 contains oil which weighs 30 kN. The specific weight of the oil is

10 kN/m3
6 kN/m3
7.5 kN/m3
4.5 kN/m3

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Hydraulics and Fluid Mechanics in ME
The pressure of air __________ with the increase of height from the surface of the earth.

Does not change
Increases
Decreases
None of these

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Hydraulics and Fluid Mechanics in ME
For centrifugal pump impeller, the maximum value of the vane exit angle is

15° to 20°
25° to 30°
20° to 25°
10° to 15°

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Hydraulics and Fluid Mechanics in ME
Specific speed for reaction turbines ranges from

0 to 4.5
80 to 200
250 to 300
10 to 100

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Hydraulics and Fluid Mechanics in ME
High specific speed of turbine implies it is

None of the listed here
Impulse turbine
Francis turbine
Propeller turbine

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