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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
A large Roynold number is indication of

LAMINAR FLOW
smooth and streamline flow
highly turbulent flow.
turbulent flow

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Hydraulics & Fluid Mechanics
The units of viscosity are

metre2/se
kg sec/metre
newton-sec/metre2
newton-sec/metre

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Hydraulics & Fluid Mechanics
Which of the following instrument can be used for measuring speed of an aeroplane

Orifice plate
rotameter
Venturimeter
pitot tube

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Hydraulics & Fluid Mechanics
The discharge through a V- notch varies as

H3’2
H1/2
H5/2
H5’4 where H is head.

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Hydraulics & Fluid Mechanics
Operation of McLeod gauge used for low pressure measurement is based on the principle of

Pascal’s law
Boyle’s law
gas law
Charle’s law

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

dissolved salt
dissolved air
suspended matter
All of these

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