Civil Engineering :: Hydraulics and Fluid Mechanics - Civil Engineering
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Flow at constant rate through a tapering pipe is
i) steady flow
ii) uniform flow
iii) unsteady flow
iv) non-uniform flow
The correct answer is -
Drag force is a function of
i) projected area of the body
ii) mass density of the fluid
iii) velocity of the body
The correct answer is -
The increase in meta centric height
i) increases stability
ii) decreases stability
iii) increases comfort for passengers
iv) decreases comfort for passengers
The correct answer is - Select the correct statement
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Least possible value of correction factor for
i) kinetic energy is zero
ii) kinetic energy is 1
iii) momentum is zero
iv) momentum is 1
The correct statements are - Choose the wrong statement
- For laminar flow in a pipe of circular cross-section, the Darcy’s friction factor f is
- The flow which neglects changes in a transverse direction is known as
- For measuring flow by a venturimeter, if should be installed in
- Which of the following instrument can be used for measuring speed of an aeroplane
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A.
Local atmospheric pressure depends upon elevation of locality only |
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B.
Standard atmospheric pressure is the mean local atmospheric pressure a* sea level |
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C.
Local atmospheric pressure is always below standard atmospheric pressure |
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D.
A barometer reads the difference be-tween local and standard atmospheric pressure |
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A.
directly proportional to Reynolds number and independent of pipe wall roughness |
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B.
directly proportional to pipe wall roughness and independent of Reynolds number |
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C.
inversely proportional to Reynolds number and indpendent of pipe wall roughness |
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D.
inversely proportional to Reynolds number and directly proportional to pipe wall roughness |