A. above it
B. below it
C. at same point
D. above or below depending on area of body
E. none of the above
Related Mcqs:
- At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be_______________?
A. minimum
B. maximum
C. zero
D. negative value
E. could be any value - 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 - The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if __________________?
A. the area is horizontal
B. the area is vertical
C. the area is inclined
D. all of the above
E. none of the above - 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 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 - The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is________________________?
A. 20 cm
B. 25 cm
C. 40 cm
D. 50 cm - For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of___________________?
A. 100 cm
B. 120 cm
C. 140 cm
D. 160 cm - The surface tension of mercury at normal temperature compared to that of water is____________________?
A. more
B. less
C. same
D. more or less depending on size of glass tube
E. none of the above. - A liquid would wet the solid, if adhesion forces as compared to cohesion forces are_________________?
A. less
B. more
C. equal
D. less at low temperature and more at high temperature
E. there is no such criterion - As compared to fresh river water, sea water contains oxygen_________________?
A. 10% less
B. 20% less
C. 10% more
D. 20% more
