The mercury does not wet the glass. This is due to the property of the liquid kn

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Question
The mercury does not wet the glass. This is due to the property of the liquid known as
Options
A. cohesion
B. adhesion
C. viscosity
D. surface tension

Correct Answer

surface tension

Hydraulics and Fluid Mechanics problems

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3. When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure
Options
A. varies as the square of the radial distance
B. increases linearly as its radial distance
C. increases as the square of the radial distance
D. decreases as the square of the radial distance

4. In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.
Options
A. equal to
B. one-third
C. two-third
D. three-fourth

9. The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where I_G = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface)
Options
A.
B.
C.
D.

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