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Hydraulic and Fluid Machines - Interview Questions and Answers

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1. Practical fluids
A. are viscous
B. possess surface tension
C. are compressible
D. possess all the above properties
E. possess none of the above properties.
Explanation:
2. Fluid is a substance which offers no resistance to change of
A. pressure
B. flow
C. shape
D. volume
E. temperature.
Explanation:
3. Centre of pressure compared to e.g. is
A. above it
B. below it.
C. at same point
D. above or below depending on area of body
E. none of the above.
Explanation:
4. 161. Buoyant force is
A. resultant force acting on a floating body
B. equal to the volume of liquid dis�placed
C. force necessary to keep a body in equi�librium
D. the resultant force on a body due to the fluid surrounding it
E. none of the above.
Explanation:
5. Metacentre is the point of intersection of
A. vertical upward force through e.g. of body and centre line of body
B. buoyant force and the centre line of body
C. mid point between e.g. and centre of buoyancy
D. all of the above
E. none of the above.
Explanation:
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