Metacentre is the point of intersection of _________________________?
(A) vertical upward force through e.g. of body and center line of body
(B) buoyant force and the center line of body
(C) mid point between e.g. and center of buoyancy
(D) all of the above
(D) none of the above
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
(D) 5.0 m
Choose the wrong statement___________________?
(A) The horizontal component of the hydro-static force on any surface is equal to the normal force on the vertical projection of the surface
(B) The horizontal component acts through the center of pressure for the vertical projection
(C) The vertical component of the hydrostatic force on any surface is equal to the weight of the volume of the liquid above the area
(D) he vertical component passes through the center of pressure of the volume
(D) Center of pressure acts at a greater depth than center of gravity
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
(D) 7 meters of water column
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
(D) 30,000 kg
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
(D) none of the above
A body floats in stable equilibrium________________?
(A) when its meatcentric height is zero
(B) when the metancentre is above e.g
(C) when its e.g. is below it’s center of buoyancy
(D) metacentre has nothing to do with position of e.g. for determining stability
(D) none of the above
The horizontal component of buoyant force is__________________?
(A) negligible
(B) same as buoyant force
(C) zero
(D) non of these
An open vessel of water is accelerated up an inclined plane. The free water surface will___________________?
(A) be horizontal
(B) make an angle in direction of inclination of inclined plane
(C) make an angle in opposite direction to inclination of inclined plane
(D) any one of above is possible
(D) none of the above
For a floating body to be in equilibrium __________________?
(A) meta center should be above e.g.
(B) center of buoyancy and e.g. must lie on same vertical plane
(C) a righting couple should be formed
(D) all of the above
(D) none of the above