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Mechanical Engineering · all questions

Hydraulics And Fluid Mechanics
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The shear stress-strain graph for a Newtonian fluid is a

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

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Property of a fluid by which its own molecules are attracted is called

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A fluid whose viscosity does not change with the rate of deformation or shear strain is known as

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The property of a fluid which enables it to resist tensile stress is known as

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The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

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An error of 1% in measuring head over the apex of the notch (H) will produce an error of _________ in discharge over a triangular notch.

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Axial flow pump is started with its delivery valve

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Centrifugal pump is started with its delivery valve

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In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle . Sensitivity of inclined tube to sensitivity of U-tube is equal to

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The unit speed of the turbine runner is

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The speed of a turbine runner is

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The shear stress between the two liquid layers is __________ proportional to the distance between two layers.

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According to fan laws, at constant pressure, the speed capacity and power vary

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The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific weight of water in N/m3, a = Cross-sectional area of jet in m2 and V = Velocity of jet in m/s)

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When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.

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For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal

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Low specific speed of a pump implies it is

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Medium specific speed of a pump implies it is

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High specific speed of a pump implies it is

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