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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.

Sum
Arithmetic mean
Difference
Geometric mean

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Hydraulics and Fluid Mechanics in ME
The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is

2ρ ω2 r2
ρ ω2 r2/4
ρ ω2 r2/2
ρ ω2 r2

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to

Archimedes’ principle
Equilibrium of a floating body
Buoyancy
Bernoulli’s theorem

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Hydraulics and Fluid Mechanics in ME
Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be

8000 kg
4000 kg
2000 kg
1000 kg

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Hydraulics and Fluid Mechanics in ME
The shear stress-strain graph for a Newtonian fluid is a

Hyperbolic curve
Straight line
Elliptical
Parabolic curve

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Hydraulics and Fluid Mechanics in ME
One horsepower is equal to

102 watts
550 watts
75 watts
735 watts

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