Hydraulics and Fluid Mechanics - Mechanical Engineering Questions and Answers

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Laminar flow __________ place at very low velocities.

takes

does not take

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A manometer can be used to measure vacuum pressures.

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disagree

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The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a rectangular notch is given by

\(\frac { dQ } { Q } = \frac {1} {2} \times \frac { dH } { H }\)

\(\frac { dQ } { Q } = \frac {3} {4} \times \frac { dH } { H }\)

\(\frac { dQ } { Q } = \frac { dH } { H }\)

\( \frac { dQ } { Q } = \frac {3} {2} \times \frac { dH } { H }\)

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The tendency of a liquid to uplift a submerged body, because of the upward thrust of the liquid, is known as buoyancy.

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