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 ?
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Civil Engineering · all questionsHydraulics And Fluid Mechanics
Hydraulics And Fluid Mechanics
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For a sphere of radius 15 cm moving with a uniform velocity of 2 m/sec through a liquid of specific gravity 0.9 and dynamic viscosity 0.8 poise, the Reynolds number will be
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Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the
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The discharge over a broad crested weir is maximum when the depth of flow is (where H is the available head)
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The line of action of the buoyant force acts through the centroid of the
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Two pipe systems are said to be equivalent when
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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 ?
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A fluid is said to be ideal, if it is
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The horizontal component of force on a curved surface is equal to the
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The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is (where R is the radius of pipe)
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Coefficient of velocity for Borda’s mouth piece running full is
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Which of the following is used to measure the discharge ?
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Rotameter is a device used to measure
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Choose the wrong statement
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A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is
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An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of
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Surge wave in a rectangular channel is an example of
i) steady flow
ii) unsteady flow
iii) uniform flow
iv) non-uniform flow
The correct answer is
i) steady flow
ii) unsteady flow
iii) uniform flow
iv) non-uniform flow
The correct answer is
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The center of gravity of the volume of the liquid displaced by an immersed body is called
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The center of gravity of the volume of the liquid displaced by an immersed body is called
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Q100
Open questionThe resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called
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