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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)

wH2/2
wH2/3
wH/2
wH

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Hydraulics and Fluid Mechanics in ME
Size of a venturimeter is specified by

pipe diameter
both pipe diameter as well as throat diameter
angle of diverging section
throat diameter

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Hydraulics and Fluid Mechanics in ME
Head developed by a centrifugal pump is

None of these
Proportional to diameter of impeller
Proportional to diameter and speed of impeller
Proportional to speed of impeller

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Hydraulics and Fluid Mechanics in ME
In series-pipe problems

the head loss is same through each pipe
a trial solution is not necessary
the discharge through each pipe is added to obtain total discharge
the discharge is same through each pipe

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Hydraulics and Fluid Mechanics in ME
Francis turbine is best suited for

Medium head application from 24 to 180 m
All types of heads
Low head installation up to 30 m
High head installation above 180 m

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Hydraulics and Fluid Mechanics in ME
Any change in load is adjusted by adjusting following parameter on turbine

Absolute velocity
Net head
Flow
Blade velocity

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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