Civil Engineering :: Hydraulics
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A pitot tube is used to measure
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The thickness of a sharp crested weir is kept less than
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The property of steam function ψ is :
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The maximum vacuum created at the summit of a syphon is
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If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.1 kg/cm2, the pressure at a depth of 2.5 m, is
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The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid, if
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If the volume of a liquid weighing 3000 kg is 4 cubic metres, 0.75 is its
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Bernoulli's equation assumes that
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The time required to close a valve gradually is (where L is the length of pipe and C = velocity of pressure wave)
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A syphon is used
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A.
ψ is constant everwhere on any stream line |
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B.
the flow around any path in the fluid is zero for continuous flow |
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C.
the rate of change of ψ with distance in an arbitrary direction, is proportional to the component of velocity normal to that direction |
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D.
the velocity vector may be found by differentiating the stream function |
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E.
all the above. |