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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

h/w
h
w/h
wh

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Hydraulics and Fluid Mechanics in ME
In series-pipe problems

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

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Hydraulics and Fluid Mechanics in ME
The units of dynamic or absolute viscosity are

kg sec/meter
metres² per sec
newton-sec² per meter
newton-sec per meter

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Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is less than the critical depth, the flow is called

Tranquil flow
Turbulent flow
Torrential flow
Critical flow

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Reynold's number
Weber's number
Euler's number
Froude's number

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Hydraulics and Fluid Mechanics in ME
The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

0.95 times
0.67 times
0.34 times
0.81 times

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