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

Questions

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.

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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