Top 250+ Solved Soil Mechanics and Foundations MCQ Questions Answer
Q. Mechanical weathering of soils is caused by
a. periodical temperature changes
b. splitting action of flowing water
c. splitting action of ice
d. all of these
Q. The contact pressure of rigid footing on cohesive soils is
a. more in the centre than at the edges
b. less in the centre than at the edges
c. uniform throughout
d. none of these
Q. The shrinkage index is equal to
a. liquid limit + plastic limit
b. plastic limit - liquid limit
c. liquid limit - shrinkage limit
d. shrinkage limit - liuid limit
Q. A soil having uniformity co-efficient more than 10, is called
a. uniform soil
b. poor soil
c. well graded soil
d. coarse soil
Q. The average velocity of flow that will take place through the total cross-sectional area of soil under unit hydraulic gradient is called
a. uniformity coefficient
b. Darcy's coefficient
c. coefficient of permeability
d. terminal velocity
Q. The moisture contents of a clayey soil is gradually decreased from a large value. The correct sequence of the occurrence of the limits will be
a. liquid limit, plastic limit and shrinkage limit
b. plastic limit, liquid limit and shrinkage limit
c. shrinkage limit, plastic limit and liquid limit
d. plastic limit, shrinkage limit and liquid limit
Q. Black cotton soil
a. is inorganic in nature
b. contains large percentage of clay mineral
c. exhibits high compressibility
d. all of these
Q. The density of sand at which there is no change in volume under the influence of shearing strain produced due to shear stress, is called
a. relative density
b. apparent density
c. critical density
d. any one of these
Q. A sample of clay and a sample of sand have the same specific gravity and void ratio. Their pemeabilities will differ because
a. their porosities will be different
b. their densities will be different
c. their degrees of saturation will be different
d. the size ranges of their voids will be different
Q. For engineering purposes, soil is defined as
a. the loose mantle at the surface of the earth which favours the growth of plant
b. a natural aggregate of mineral grains, loose or moderately cohesive, inorganic or organic in nature
c. a disintegrated rock
d. all of the above
Q. If the soil below the base of the footing is dry or moist, the confining pressure is approximately
a. equal to
b. double
c. three times
d. four times
Q. The suantity of seepage of water in a soil medium is
a. directly proportional to the head of water at upstream
b. inversely proportional to the head of water at upstream
c. directly proportional to the coefficient of permeability
d. inversely proportional to the coefficient of permeability