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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of friction factor ‘f’ for smooth pipes for Reynolds number 106 is approximately equal to

0.01
0.1
0.001
0.0001

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Hydraulics and Fluid Mechanics in ME
A weir, generally, used as a spillway of a dam is

Broad crested weir
Ogee weir
Narrow crested weir
Submerged weir

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Hydraulics and Fluid Mechanics in ME
Equation of continuity is based on the principle of conservation of

energy
None of these
momentum
mass

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Hydraulics and Fluid Mechanics in ME
The major loss of energy in long pipes is due to

sudden enlargement
sudden contraction
gradual contraction or enlargement
friction

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Hydraulics and Fluid Mechanics in ME
Gradually varied flow is

non-steady uniform
non-steady non-uniform
steady uniform
steady non-uniform

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Hydraulics and Fluid Mechanics in ME
The centre of pressure for a vertically immersed surface lies at a distance equal to __________ the centre of gravity.

IG / Ax̅ below
Ax̅ / IG below
Ax̅ / IG above
IG / Ax̅ above

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