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Hydraulic and Fluid Machines - Interview Questions and Answers

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116. 63. A one dimensional flow is one which
A. is uniform flow
B. is steady uniform flow
C. takes place in straight lines
D. involves zero transverse component of flow
E. takes place in one dimension.
Explanation:
117. The resultant upward pressure of the fluid on an immersed body is called
A. upthrust
B. buoyancy
C. centre of pressure
D. all the above are correct
E. none of above is correct.
Explanation:
118. The units of kinematic viscosity are
A. metres2 per sec
B. kg sec/metre
C. newton-sec per metre
D. newton-sec per metre
E. none of the above.
Explanation:
119. Which of the following is demensionless
A. specific weight
B. specific volume
C. specific speed
D. specific gravity
E. specific viscosity.
Explanation:
120. Free surface of a liquid tends to contract to the smallest possible area due to force of
A. surface tension
B. viscosity
C. friction
D. cohesion
E. adhesion.
Explanation:
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