Soil Mechanics and Foundation Engineering MCQs with Answers | Soil Mechanics and Foundation Engineering Quiz

101 For a loose sand sample and a dense sand sample consolidated to the same effective stress

[A] ultimate strength is same and also peak strength is same

[B] ultimate strength is different but peak strength is same

[C] ultimate strength is same but peak strength of dense sand is greater than that of loose sand

[D] ultimate strength is same but peak

Answer: ultimate strength is same but peak strength of dense sand is greater than that of loose sand

102 Select the incorrect statement.

[A] Effective cohesion of a soil can never have a negative value.

[B] Effective angle of internal friction for coarse grained soils is rarely below 30°.

[C] Effective angle of internal friction for a soil increases as state of compact-ness increases.

[D] Effective angle of internal friction is a complicated function of mineralogy and clay size content.

Answer: Effective cohesion of a soil can never have a negative value.

103 For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as

[A] dry of OMC and wet of OMC

[B] wet of OMC and dry of OMC

[C] wet of OMC and wet of OMC

[D] dry of OMC and dry of OMC where OMC is optimum moisture content

Answer: wet of OMC and dry of OMC

104 The maximum dry density upto which any soil can be compacted depends upon

[A] moisture content only

[B] amount of compaction energy only

[C] both moisture content and amount of compaction energy

[D] none of the above

Answer: both moisture content and amount of compaction energy

105 Coefficient of earth pressure at rest is

[A] less than active earth pressure but greater than passive earth pressure

[B] greater than active earth pressure but less than passive earth pressure

[C] greater than both the active earth pressure and passive earth pressure

[D] less than both the active and passive earth pressures

Answer: greater than active earth pressure but less than passive earth pressure

Soil Mechanics and Foundation Engineering Quiz | Soil Mechanics and Foundation Engineering MCQs with Answers