Soil Mechanics And Foundation MCQ Questions & Answers

31

Valid range for n, the percentage voids, is

A) 0 < n < 100 B) 0 ≤ n ≤ 100 C) n > 0 D) n < 0

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Answer & Solution

Answer: Option A

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32

Rankine’s theory of earth pressure assumes that the back of the wall is

A) plane and smooth B) plane and rough C) vertical and smooth D) vertical and rough

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Answer & Solution

Answer: Option C

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33

The most suitable method for drainage of fine grained cohesive soils is

A) well ppint system B) vacuum method C) deep well system D) electroosmosis method

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Answer & Solution

Answer: Option D

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34

With the increase in the amount of compaction energy

A) optimum water content increases but maximum dry density decreases B) optimum water content decreases but maximum dry density increases C) both optimum water content and maximum dry density increase D) both optimum water content and maximum dry density decrease[ES 93]

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Answer & Solution

Answer: Option B

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35

In a deposit of normally consolidated clay

A) effective stress increases with depth but water content of soil and un-drained strength decrease with depth B) effective stress and water content increase with depth but undrained strength decreases with depth C) effective stress and undrained strength increase with depth but water content decreases with depth D) effective stress, water content and undrained strength decrease with depth

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Answer & Solution

Answer: Option C

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36

Which of the following methods is most accurate for the determination of the water content of soil ?

A) oven drying method B) sand bath method C) calcium carbide method D) pycnometer method

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Answer & Solution

Answer: Option A

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37

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

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Answer & Solution

Answer: Option C

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38

Toughness index is defined as the ratio of

A) plasticity index to consistency index B) plasticity index to flow index C) liquidity index to flow index D) consistency index to liquidity index

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Answer & Solution

Answer: Option B

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39

The value of compression index for a remoulded sample whose liquid limit is 50% is

A) 0.028 B) 0.28 C) 0.36 D) 0.036

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Answer & Solution

Answer: Option B

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40

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

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Answer & Solution

Answer: Option B

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Soil Mechanics And Foundation MCQ Questions & Answers | Civil Engineering