1000 Best Soil and Foundation Engineering MCQ
Q25). The water content of soil is defined as the ratio of
a).volume of water to volume of given soil
b).volume of water to volume of voids in soil
c).weight of water to weight of air in voids
d).weight of water to weight of solids of given mass of soil.
Correct Answer:
weight of water to weight of solids of given mass of soil.
Explanation:
Q26). Accurate determination of water content, is made by
a).calcium carbide method
b).sand bath method
c).alcohol method
d).oven-drying method.
Correct Answer:
oven-drying method.
Explanation:
Q27). 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.
Correct Answer:
shape, size and weight of grain.
Explanation:
Q28). Pick up the correct statement from the following:
a).When water table is above the base of a footing, the dry weight m should be used for soil below water table
b).When water table is located somewhat below the base of a footing, the elastic wedge is partly of moist soil and partly of submerged soil, and a suitable reduction factor is used
c).When water table is just at the base of the footing, no reduction factor is used
d).None of these.
Correct Answer:
When water table is located somewhat below the base of a footing, the elastic wedge is partly of moist soil and partly of submerged soil, and a suitable reduction factor is used
Explanation:
Q29). Pick up the correct statement from the following :
a).In soils, the flow index indicates variation in shear strength with water content
b).Liquid limit minus plastic limit, is known as plasticity index of the soil
c).Plastic limit minus shrinkage limit, is known as shrinkage index of the soil
d).All of the above
Correct Answer:
All of the above
Explanation:
Q30). The liquid limit and plastic limit exist in
a).sandy soils
b).silty soils
c).gravel soils
d).clay soils.
Correct Answer:
clay soils.
Explanation:
Q31). Back fill with a sloping surface exerts a total active pressure Pa on the wall of height H and acts at
a).H/4 above the base parallel to base
b).H/2 above the base parallel to base
c).H/3 above the base parallel to base
d).H/5 above the base parallel to base.
Correct Answer:
H/3 above the base parallel to base
Explanation:
Q32). The ratio of the weight of given volume of soil solids to the weight of an equal volume of distilled water at the given temperature, is known
a).porosity
b).specific gravity
c).void ratio
d).water content.
Correct Answer:
specific gravity
Explanation: