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Hydraulic and Fluid Machines - Interview Questions and Answers

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6. Ratio of inertia force to surface Jension is known as
A. Mach number
B. Froude number
C. Reynold's number
D. Weber's number
E. none of the above.
Explanation:
7. Resultant pressure of the liquid in the case of an immersed body acts through
A. centre of gravity
B. centre of pressure
C. metacentre
D. centre of buoyancy
E. in between e.g. and centre of pressure.
Explanation:
8. An open vessel of water is accelerated up an inclined plane. The free water surface will
A. be horizontal
B. make an angle in direction of inclina�tion of inclined plane
C. make an angle in opposite direction to inclination of inclined plane
D. any one of above is possible
E. none of the above.
Explanation:
9. When a body floating in a liquid, is displaced slightly, it oscillates about
A. e.g. of body
B. centre of pressure
C. centre of buoyancy
D. metacentre
E. liquid surface.
Explanation:
10. The two important forces for a floating body are
A. buoyancy, gravity
B. buoyancy, pressure
C. buoyancy, inertial
D. inertial, gravity
E. gravity, pressure.
Explanation:
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