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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Ay between two stream lines represents

head
velocity
discharge
pressure

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Hydraulics & Fluid Mechanics
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than

10.0 m above the hydraulic gradient
2.4 m above the hydraulic gradient
6.4 m above the hydraulic gradient
5.0 above the hydraulic gradient

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Hydraulics & Fluid Mechanics
Specific weight of sea water is more that of pure water because it contains

suspended matter
All of these
dissolved salt
dissolved air

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Hydraulics & Fluid Mechanics
The Prartdtl mixing length is

maximum at the pipe wall
zero at the pipe wall
None of these
independent of shear stress

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Hydraulics & Fluid Mechanics
The surface tension of mercury at normal temperature compared to that of water is

less
more
same
more or less depending on size of glass tube

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Hydraulics & Fluid Mechanics
SURFACE TENSION HAS THE UNITS OF

NETON/M
NEWTONS/M
NEWTONS
NEW TONS/M

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MORE MCQ ON Hydraulics & Fluid Mechanics

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