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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

Steep
Nearly horizontal
Horizontal
First rise and then fall

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Hydraulics and Fluid Mechanics in ME
A nozzle placed at the end of a water pipe line discharges water at a

High velocity
High pressure
Low pressure
Low velocity

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Hydraulics and Fluid Mechanics in ME
The losses are more in

turbulent flow
transition flow
critical flow
laminar flow

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Hydraulics and Fluid Mechanics in ME
At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be

Minimum
Could be any value
Zero
Maximum

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Hydraulics and Fluid Mechanics in ME
The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)

0.577 D
0.423 D
0.223 D
0.707 D

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Hydraulics and Fluid Mechanics in ME
Delivery head of a centrifugal pump is

Directly proportional to N
Inversely proportional to N
Inversely proportional to N²
Directly proportional to N²

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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