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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The region between the separation streamline and the boundary surface of the solid body is known as

drag
boundary layer
wake
lift

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

H5/2
H5’4 where H is head.
H3’2
H1/2

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Hydraulics & Fluid Mechanics
For measuring flow by a venturimeter, if should be installed in

inclined line with upward flow
in any direction and in any location.
vertical line
horizontal line

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

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Hydraulics & Fluid Mechanics
A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ?

1 : 5
1 :25
1:50
1 : 2.5

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Hydraulics & Fluid Mechanics
The resultant of all normal pressures acts

at metacentre
at center of pressure
vertically upwards
at e.g. of body

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