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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
SURFACE TENSION HAS THE UNITS OF

NEWTONS/M
NETON/M
NEWTONS
NEW TONS/M

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

H1/2
H5’4 where H is head.
H5/2
H3’2

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Hydraulics & Fluid Mechanics
For a floating body to be in equilibrium

meta center should be above e.g.
a righting couple should be formed
center of buoyancy and e.g. must lie on same vertical plane
All of these

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Hydraulics & Fluid Mechanics
The density of water is 1000 kg/m3 at

4°C
0°K
20°C
0°C

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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

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

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Hydraulics & Fluid Mechanics
The increase in meta centric height i) increases stability ii) decreases stability iii) increases comfort for passengers iv) decreases comfort for passengers The correct answer is

(ii) and (iv)
(i) and (iii)
(ii) and (iii)
(i) and (iv)

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