Fluid mechanics and statics

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1. The centre of pressure of a liquid on a plane surface immersed vertically in a static body of liquid, always  lies below the centroid of the surface area, because
2. If, for a fluid in motion, pressure at a point is same in all the directions , then fluid is
3. A vertical triangular plane area  submerged in water ,with one side in the free surface, vertex downward and altitude 'h' has the pressure centre below the free surface by
4. When pressure is measured either above or below the atmospheric pressure, it is known as
5. At sea level under normal conditions the equivalent value of the atmospheric pressure is
6. In a barometer, mercury is preferred over water because
7. For a fluid at rest,

 
8. If the pressure of a fluid is below the atmospheric pressure , its designated as
9.
10. Barometer is used to measure

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