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
Related Mcqs:
- 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 - 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 metres of water column
B. 3 metres of water column
C. 3.5 metres of water column
D. 4 m of water column
E. none of the above - A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at water 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 - 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 - 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 - Water boils when its vapour pressure ___________________?
A. equals that of the surroundings
B. equals 760 mm of mercury
C. equals to atmospheric pressure
D. equals the pressure of water in the container
E. boiling has ^nothing to do with vapour pressure - 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 - If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be________________?
A. h
B. wh
C. w/h
D. h/w
E. h/wh - Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be_______________?
A. 1000 kg
B. 4000 kg
C. 2000 kg
D. 8000 kg
E. 16000 kg - The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is____________________?
A. 2.4 m
B. 3.0 m
C. 4.0 m
D. ”2.5 m
E. 5.0 m
