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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be

First rise and then fall
Nearly horizontal
Steep
Horizontal

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Hydraulics and Fluid Mechanics in ME
Principle of similitude forms the basis of

hydraulic designs
comparing two identical equipments
comparing similarity between design and actual equipment
designing models so that the result can be converted to prototypes

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Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a pressure gauge is called

Mean pressure
Atmospheric pressure
Absolute pressure
Gauge pressure

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Hydraulics and Fluid Mechanics in ME
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)

w × Q × H
w × Q × hf
w × Q (H - hf)
w × Q (H + hf)

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Hydraulics and Fluid Mechanics in ME
The specific speed of a centrifugal pump, delivering 750 liters of water per second against a head of 15 meters at 725 r.p.m., is

48.2 r.p.m
82.4 r.p.m.
248 r.p.m
24.8 r.p.m.

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

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

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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