The vapour pressure over the concave surface is________________?

Related Mcqs:

1. The vapour pressure over the concave surface is__________________?

   A. less man the vapour pressure over the plane surface
   B. equal to the vapour pressure over the plane surface
   C. greater than the vapour pressure over the plane surface
   D. zero
   E. none of the above

2. If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be _____________________?

   A. 2 meters of water column
   B. 3 meters of water column
   C. 5 meters of water column
   D. 6 meters of water Column
   E. 7 meters of water column

3. The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm”. The pressure at 2.5 m below the oil surface will be ___________________?

   A. 2 meters of water column
   B. 3 meters of water column
   C. 3.5 meters of water column
   D. 4 m of water column
   E. none of the above

4. A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is __________________?

   A. 9,000 kg
   B. 13,500 kg
   C. 18,000 kg
   D. 27,000 kg
   E. 30,000 kg

5. The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be____________________?

   A. 500 kg
   B. 1000 kg
   C. 1500 kg
   D. 2000 kg
   E. 4000 kg.

6. The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be___________________?

   A. 500 kg
   B. 1000 kg
   C. 1500 kg
   D. 2000 kg
   E. 4000 kg

7. The center of pressure of a surface subjected to fluid pressure is the point____________________?

   A. on the surface at which resultant pres-sure acts
   B. on the surface at which gravitational force acis
   C. at which all hydraulic forces meet
   D. similar to metacentre
   E. where pressure equivalent to hydraulic thrust will act

8. Surface energy per unit area of a surface is numerically equal to ___________________?

   A. atmospheric pressure
   B. surface tension
   C. force of adhesion
   D. force of cohesion
   E. viscosity

9. Surface energy per unit area of a surface is numerically equal to___________________?

   A. atmospheric pressure
   B. surface tension
   C. force of adhesion
   D. force of cohesion
   E. viscosity

10. The upper surface of a weir over which water flows is known is________________?

    A. crest
    B. nappe
    C. sill
    D. weir top
    E. contracta