HYDRAULICS AND FLUID MECHANICS IN ME QUIZ

A structure used to dam up a stream or river over which the water flows is called

Notch

Orifice

Dam

Weir

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The eddy viscosity for turbulent flow is

independent of the flow

a physical property of the fluid.

a function of temperature only

dependent on the flow

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The velocity at which the laminar flow stops, is known as

Velocity of approach

Higher critical velocity

None of these

Lower critical velocity

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The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

Steak line

Potential line

Stream line

Path line

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An open tank containing liquid is moving with an acceleration on an inclined plane. The inclination of the free surface of the liquid will be __________ to the acceleration of the tank.

None of these

Equal to

Inversely proportional

Directly proportional

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The pressure of a liquid measured with the help of a Piezometer tube is

Absolute pressure

Vacuum pressure

Gauge pressure

Atmospheric pressure

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The discharge over a rectangular notch is

Directly proportional to H3/2

Inversely proportional to H5/2

Inversely proportional to H3/2

Directly proportional to H5/2

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The unit of surface tension is

N/m2

N-m

N/m3

N/m

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The impeller of a centrifugal pump may have

Volute casing with guide blades

Volute casing

Vortex casing

Any one of these

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The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

Newton's law of motion

Newton's law of viscosity

Newton's law of resistance

Newton's law of cooling

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