1000 Best Soil and Foundation Engineering MCQ
Q73). The angle between the directions of the failure and the major principal plane, is equal to
a).90° + effective angle of shearing resistance
b).90° + half of the angle of shearing resistance
c).45° – half of the angle of shearing resistance
d).45° + half of the angle of shearing resistance.
Correct Answer:
45° + half of the angle of shearing resistance.
Explanation:
Q74). The compressibility of clays, is caused due to:
a).expulsion of double layer water from in between the grains
b).sliping of particles to new positions of greater density
c).bending of particles as elastic sheets
d).all the above.
Correct Answer:
all the above.
Explanation:
Q75). A phreatic line is defined as the line within a dam section below which there are
a).positive equipotential lines
b).positive hydrostatic pressure
c).negative hydrostatic pressure
d).negative equipotential lines
Correct Answer:
positive hydrostatic pressure
Explanation:
Q76). The ratio of the difference between the void ratio of the soil in its loosest state and its natural void ratio (e) to the difference between the void ratios in the loosest and fully dense state, is generally termed as
a).degree of density
b).relativity
c).density index
d).All of the above
Correct Answer:
All of the above
Explanation:
Q77). Pick up the correct statement from the following:
a).The property of a soil that enables it to become stiff in a relatively short time on standing is called thixotropy
b).The ratio of shear strength in natural state to the remoulded shear strength under undrained conditions, is called degree of sensitivity
c).The difference between the undisturbed shear strength and remoulded shear strength is known as remoulding loss
d).All the above
Correct Answer:
All the above
Explanation:
Q78). According to the Indian Standards the specific gravity is the ratio of the unit weight of soil solids to that of water at a temperature of
a).17°C
b).23°C
c).27°C
d).30°C
Correct Answer:
27°C
Explanation:
Q79). Pick up the correct statement from the following:
a).Illite bond is weaker than Kaolinite bond
b).Illite bond is stronger than montmorillonite bond
c).Illites do not swell when wet
d).All of the above
Correct Answer:
All of the above
Explanation:
Q80). Determination of water content of a soil sample suspected to contain gypsum is made by drying the sample for longer period at a temperature not more than
a).60°C
b).80°C
c).100°C
d).110°C
Correct Answer:
80°C
Explanation: