Civil Engineering :: Hydraulics
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Flow in pipes is laminar if Reynold number is
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The terminal velocity (v) of a sphere of radius r and specific weight W, which travels vertically downwards in a liquid of viscosity μ and specific weight W, is
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In flow, the liquid particles may possess
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Euler's equation for the motion of liquids assumes that
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The height of water level in a tank above the centre of a circular hole 2.5 cm in diameter is 50 m. The velocity of water flowing through the hole, is
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A steady uniform flow is through
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Cavitation is caused by
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Mach number is the ratio of inertia force to
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Hydraulic gradient is equal to difference in water surfaces
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The main assumption of Bernoulli's equation is :
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A.
\(\frac { \text{difference in water surface} } {\text{total length of the channel} } \) |
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B.
\(\frac { \text{head loss due to friction} } {\text{total length of the channel} } \) |
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C.
\(\frac { \text{wetted perimeter} } {\text{total length of the channel} } \) |
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D.
\(\frac { \text{area of the cross -section} } {\text{total length of the channel} } \) |