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Geotechnical Engineering II Mcqs

Q:

The value of K0(coefficient of earth pressure at rest) for loose sand is __________

A) 0.6 B) 0.5
C) 0.4 D) 0.8
 
Answer & Explanation Answer: C) 0.4

Explanation: The value of K0 for different soils is:
i) Loose sand – 0.4
ii) Dense sand – 0.6
iii) Soft clay – 0.6
iv) Hard clay – 0.5.

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573
Q:

Local shear failure generally occurs in ___________

A) Dense sand B) Non-cohesive soil
C) Loose sand D) All of the mentioned
 
Answer & Explanation Answer: C) Loose sand

Explanation: Local shear failure generally occurs in loose sand while general shear failure occurs in dense sand.

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366
Q:

What are the methods used for general exploration?

A) Subsurface penetration B) Ground water exploration
C) Rock Cuttings D) All of the mentioned
 
Answer & Explanation Answer: A) Subsurface penetration

Explanation: Exploratory borings, shallow test pits, subsurface penetration, soundings and geophysical methods are used for general exploration.

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349
Q:

A combined footing may be rectangular in shape if both the columns carry ___________

A) Unequal loads B) Equal loads
C) No load D) All of the mentioned
 
Answer & Explanation Answer: B) Equal loads

Explanation: The combined footing may be rectangular in shape if both the columns carry equal loads, or may be trapezoidal if they carry unequal loads.

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318
Q:

The geostrips are generally produced from ________

A) glycerine B) polypropylene
C) dextrin D) benzene
 
Answer & Explanation Answer: B) polypropylene

Explanation: The geostrips are a type of geotextiles. As per American Society for Testing and Materials (ASTM), the geotextiles are permeable sheets of synthetic fibres like polypropylene, polyethylene etc.

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296
Q:

One of the main advantages of using cased piles are _________

A) On-the-job-length flexibility and Internal inspection after being driven B) Protect concrete fillings
C) None of the mentioned D) All of the mentioned
 
Answer & Explanation Answer: A) On-the-job-length flexibility and Internal inspection after being driven

Explanation: The advantages of using cased piles are the on-the-job length flexibility, internal inspection after it is driven.

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281
Q:

The plate load test is essentially a ___________

A) Laboratory test B) Field test
C) Graphical method analysis D) None of the mentioned
 
Answer & Explanation Answer: B) Field test

Explanation: Plate load test is a field test to determine the ultimate bearing capacity of the soil, and the probable settlement under a given loading.

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275
Q:

In cohesive soil, the pressure distribution beneath the footing is ___________

A) Linear B) Non linear
C) Zero D) None of the mentioned
 
Answer & Explanation Answer: A) Linear

Explanation: When a footing rests on cohesive soil, the edge stresses may be very large, but the pressure distribution may be considered to be linear.

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