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Geotechnical Engineering | MCQ – 01 | 20 MCQs

Posted on July 1, 2021March 8, 2023 By Civil Vedant

Q.1) Lacustrine soil are those soils which are :

A) Deposited in sea water

B) Deposited at the bottom of lakes

C) Transported by running water

D) Transported by wind

Answer

Option (B)

Q.2) The soil transported by glaciers either by ice or water is called :

A) Talus

B) Loess

C) Drift

D) None of the above

Answer

Option (C)

Q.3) The minimum size of grains of silts is about –

A) 0.0002 mm

B) 0.002 mm

C) 0.02 mm

D) 0.2 mm

Answer

Option (A)

Q.4) If the pores of a soil are completely full of air only, the soil is said to be :

A) Wet soil

B) Dry soil

C) Fully saturated soil

D) Partially saturated soil

Answer

Option (B)

Q.5) The relation between porosity (n) and void ratio (e) is given by :

A) n = (1+e)/e

B) n = e/(1+e)

C) e = n/(1-n)

D) e = (1-n)/n

Answer

Option (C)

Q.6) The ratio of volume of air voids to the volume of voids is called :

A) Void ratio

B) Air content

C) Degree of saturation

D) Porosity

Answer

Option (B)

Q.7) The degree of saturation for the moist soil is about –

A) 0%

B) 1 to 25%

C) 25 to 50%

D) 50 to 75%

Answer

Option (D)

Q.8) Gravel and sand is a –

A) Cohesive coarse grained soil

B) Cohesive fine grained soil

C) Non-cohesive coarse grained soil

D) Non-cohesive fine grained soil

Answer

Option (C)

Q.9) The water content of soils can be accurately determined by :

A) Sand bath method

B) Calcium carbide method

C) Oven drying method

D) Pycnometer method

Answer

Option (C)

Q.10) The standard temperature at which the hydrometer is calibrated is –

A) 10 deg C

B)15 deg C

C)20 deg C

D)27 deg C

Answer

Option (D)

Q.11) The uniformity co-efficient of soil is defined as the ratio of :

A) D40/D10

B) D40/D20

C) D50/D10

D) D60/D10

Answer

Option (D)

Q.12) A soil having uniformity co-efficient > 10, is called :

A) Uniform soil

B) Poor soil

C) Well graded soil

D) Coarse soil

Answer

Option (C)

Q.13) Stoke’s law is applicable to particles upto………..effective diameter.

A) 0.0002 mm

B) 0.002 mm

C) 0.02 mm

D) 0.2 mm

Answer

Option (A)

Q.14) The sensitivity of a normal clay is about :

A) 2 to 4

B) 4 to 8

C) 8 to 15

D) 15 to 20

Answer

Option (A)

Q.15) When water content in a soil is reduced beyond the shrinkage limit, the soil will be in a –

A) Solid state

B) Liquid state

C) Semi-solid state

D) Plastic state

Answer

Option (A)

Q.16) The liquid limit exists in –

A) Sandy soils

B) Gravel soils

C) Silty soils

D) Clays

Answer

Option (D)

Q.17) When the Plastic Limit ≥ Liquid Limit, then the Plasticity Index is :

A) Negative

B) Zero

C) One

D) > 1

Answer

Option (B)

Q.18) When the particles of soil are oriented ‘edge-to-edge’ or ‘edge-to-face’ w.r.t one another, the soil is said to have :

A) Single grained structure

B) Double grained structure

C) Honey-combed structure

D) Flocculent structure

Answer

Option (D)

Q.19) The pressure exerted by water on the soil through which it percolates, is known as –

A) Hydrostatic pressure

B) Effective pressure

C) Seepage pressure

D) None of the above

Answer

Option (C)

Q.20) The flow net in the seepage of water through a soil medium is a network of –

A) Flow lines

B) Equi-potential lines

C) Flow lines and equi-potential lines

D) Water particles & their movement in soil

Answer

Option (C)

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Soil Mechanics Tags:gate, geotech mcqs, geotech questions for ssc, geotechnical engineering, soil mechanics, soil mechanics objectives, ssc

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