961. On an inclined plane, centre of pressure is located
A. at the centroid
B. above the Centroid
C. below the centroid
D. anywhere.
962. When a body is totally or partially immersed in a fluid, it is buoyed up by a force equal to
A. weight of the body
B. weight of the fluid displaced by the body
C. weight of the body and fluild displaced by the body
D. difference of weights of the fluid displaced and that of the body
963. A floating body attains stable equilibrium if its metacentre is
A. at the centroid
B. above the centroid
C. below the centroid
D. anywhere.
964. Centre of buoyancy is
A. centroid of the floating body
B. centroid of the fluid displaced
C. centre of pressure of the displaced liquid
D. none of these.
965. A water tank partially filled with water is being carried on a truck moving with a constant horizontal acceleration. The level of the water
A. rises on the front side of the tank
B. falls on the back side of the tank
C. remains the same at both sides of the tank
D. rises on the back side and falls on the front side
966. The liquid limit and plastic limit exist in
A. sandy soils
B. silty soils
C.gravel soils
D. clay soils.
967. You are given a sample of soil containing coarse grains to determine its water content, you will use
A. pycnometer
B. oven-drying method
C. calcium carbide method
D. alcohol method.
968. The weight of a pycnometer containing 400 g sand and water full to the top is 2150 g. The weight of pycnometer full of clean water is 1950 g. If specific gravity of the soil is 2.5, the water content is
A.5%
B.10%
C.15%
D. 20%.
969. The total weight of a pycnometer with water and oven dried soil 20 (g) is 1600 g. The pycnometer filled with water alone weighs 1500 g. The specific gravity of the soil, is
A.1
B.1.5
C.2
D. 2.5.
970. Stoke’s law sates that the velocity at which a grain settles out of suspension, the other factors remaining constant, is dependent upon
A. shape of grain
B. weight of grain
C. size of grain
D. shape, size and weight of grain.
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