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Hydraulics & Fluid Mechanics

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

20°C
0°C
0°K
4°C

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Hydraulics & Fluid Mechanics
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called

viscosity
co-efficient of viscosity
osmosis
surface tension

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

drag
boundary layer
lift
wake

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Hydraulics & Fluid Mechanics
The continuity equation pi V,A,= p2V2A2 is based on the following assumption regarding flow of fluid (where pi and p2 are mass densities.)

uniform flow
frictionless flow
steady flow
incompressible flow

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Hydraulics & Fluid Mechanics
If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its

specific gravity
specific weight
specific mass
specific density

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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

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

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