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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Ay between two stream lines represents

velocity
head
pressure
discharge

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Hydraulics & Fluid Mechanics
A ship whose hull length is 100 m is to travel at 10 m/sec. For dynamic similarity, at what velocity should a 1:25 model be towed through water ?

2 m/sec
25 m/sec
50 m/sec
10 m/sec

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Hydraulics & Fluid Mechanics
A fluid is said to be ideal, if it is

inviscous and compressible
incompressible
inviscous and incompressible
inviscous

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

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

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Hydraulics & Fluid Mechanics
The flow which neglects changes in a transverse direction is known as

one dimensional flow
steady flow
uniform flow
turbulent flow

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Hydraulics & Fluid Mechanics
In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is

40 M/SEC
50 M/SEC
22.5 M/SEC
33 M/SEC

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