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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. This saving in case of a single acting reciprocating pump is

0.884
0.392
0.488
0.848

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Speed and head of water
Speed, power developed and head of water
Discharge and power developed
Speed and power developed

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Hydraulics and Fluid Mechanics in ME
The maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of ship, is

0.5
0.8
0.4
0.6

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water to the boilers?

Reciprocating pump
Jet pump
Airlift pump
Centrifugal pump

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Hydraulics and Fluid Mechanics in ME
An impulse turbine is used for

High discharge
Medium head of water
Low head of water
High head of water

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Hydraulics and Fluid Mechanics in ME
Kinematic viscosity is equal to

1/dynamicviscosity x density
dynamic viscosity/density
dynamicviscosity x density
density/dynamic viscosity

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