Hydraulics and Fluid Mechanics - Mechanical Engineering Questions and Answers

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The specific gravity of water is taken as

0.001

0.01

0.1

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The body will float if the force of buoyancy is __________ the weight of the liquid displaced.

equal to

less than

more than

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According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

\(\frac { f /v^2} { 2gd }\)

\(\frac { f /v^2} { gd }\)

\(\frac { 3f /v^2} { 2gd }\)

\(\frac { 4 f /v^2} { 2gd }\)

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The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called

density of liquid

specific gravity of liquid

compressibility of liquid

surface tension of liquid