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Geo terms

terms and objective questions for geotechnical engineering [HGE]

QuestionAnswer
Dispersed type of soil structure is an arrangement comprising particles having Face to face or parallel orientation
The soil moisture driven off by heat is called Hydroscopic water
Residual soils are formed by A. Glaciers B. Wind C. Water D.None of the above D. None of the above
“Talus” is the soil transported by Gravitational force
Chemical weathering of soil is caused due to A. Oxidation B. Carbonation C. Hydration D. All the above D. All the above
Which of type of soil is transported by gravitational forces? Talus
Geologic cycle for the formation of soil is Weathering → Transportation → Deposition → Upheaval
The inventor of the term soil mechanics was Dr. Karl Terzaghi
Water formed transported soil is Alluvial
“Drift” is the material picked up, mixed, disintegrated, transported and redeposited by Glaciated water
“Loess” is silty clay formed by the action of Wind
Pick the correct statement: A.The rise of the ground surface due to frost action is called frost heave B.The freezing of water is accompanied by a volume increase of 9% C.Below freezing point, higher soil suction develops D.All the above D. All the above
Transporting and re-depositing soils, is done by A. Water B. Glacier C. Gravity D. All the above D. All the above
Soil is... lahat hahaha
Buoyant unit weight equal the saturated density Minus unit weight of water
You are given a sample of soil containing coarse grains to determine its water content, you will use Pycnometer
Unit weight of soil __________ due to submergence in water decreases
Pick the correct statement: A. void ratio in soils = ratio of the volume of voids to the volume of solids B. bulk density = soil unit weight C. dry density =weight of solids to the total volume of the soil D. All the above D. All the above
If the water content of ae fully saturated soil mass is 100%, then the voids ratio of the sample is Equal to specific gravity of soil
When the seepage pressure becomes equal to the pressure due to submerged weight of a soil, the effective pressure is reduced to zero and the soil particles have a tendency to move up in the direction of flow. This phenomenon is generally known Quick condition Boiling condition Quick sand
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 Oven drying method
The ratio of the weight of water to the weight of solids in a given mass of soil, is known as Water content
Water content of soil can A. Never be greater than 100% B. Take values only from 0% to 100% C. Be less than 0% D. Be greater than 100% D. Be greater than 100%
If the voids of a soil mass are full of air only, the soil is termed as Dry soil
Ano tama A.The void space between the soil grains is filled partly with air and partly with water B.In perfectly saturated soil, the voids are completely filled with water C.In dry soil, the voids are completely filled with air D.All the above D. All the above
When the degree of saturation is zero, the soil mass under consideration represents Two phase system with soil and air
For proper field control, which of the following methods is best suited for quick determination of water content of a soil mass? A. Oven drying method B. Sand bath method C. Alcohol method D. Calcium carbide method D. Calcium carbide method
The water content of soil is defined as the ratio of weight of water to weight of solids of given mass of soil
A fully saturated soil is said to be Two phase system with soil and water
The specific yield of soil depends upon A. Compaction of stratum B. Distribution of pores C. Shape and size of particles D. All the above D. All the above
Sedimentation analysis is based on the assumption: A. Soil particles are spherical B. Particles settle independent of other particles C. Walls of the jar do not affect the settlement D. All the above D. All the above
A pycnometer is used to determine Water content and specific gravity
Valid range for S, the degree of saturation of soil in percentage is 0 ≤ S ≤ 100
The ratio of volume of voids to the total volume of soil mass is called Porosity
The ratio of the volume of voids to the volume of soil solids in a given soil mass, is known Void ratio
The hydrometer method of sedimentation analysis differs from the pipette analysis mainly in The method of taking observations
The ratio of the weight of given volume of soil solids to the weight of an equal volume of distilled water at the given temperature, is known Specific gravity
A partially saturated soil is classified as A. One phase soil B. Two phase soil C. Three phase soil D. Four phase soil C. Three phase soil
Pick the correct statement: A.In hydrometer method, weight Wa per ml of suspension is found directly B.In pipette analysis, weight Wa per mL of suspension is found indirectly C.In pipette analysis, weight Wa per ml of suspension is found directly C. In pipette analysis, weight Wa per ml of suspension is found directly
Valid range for n, the percentage voids, is 0 < n < 100
Voids ratio of a soil mass can A. Never be greater than unity B. Be zero C. Take any value greater than zero D. Take values between 0 and 1 only C. Take any value greater than zero
The relationship between void ratio (e) and porosity ratio (n) is: e=n/(1-n)
The specific gravity of quartz, is 2.65
In hydrometer analysis for a soil mass Meniscus correction is additive and dispersing agent correction is subtractive
Water content of a soil sample is the difference of the weight of the given sample at the given temperature and the weight determined after drying it for 24 hours at temperature ranging from 105° to 110°C
Determination of water content of a soil sample suspected to contain gypsum is made by drying the sample for longer period at a temperature not more than 80°C
The specific gravity of sands, is approximately 2.6
Created by: user-1826018
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