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MCQ
3281. The ratio of the volume of air voids to the volume of voids, is called-
void ratio
air content
degree of saturation
porosity
3282. When water content in a soil is reduced beyond the shrinkage limit, the soil will be in a- [BREB-15]
solid state
semi-solid state
liquid state
plastic state
3283. The unit weight of soil mass is expressed in-
kg/m²
N/m²
kg/m³
kN/m³
3284. The ratio of the unit weight of soil solids to that of water is called-
void ratio
porosity
specific gravity
degree of saturation
3285. The unit weight of a soil at zero air voids depends upon-
unit weight of water
water content
specific gravity
all of these
3286. The approximate void ratio in sandy soils is-
0.2
0.8
0.6
1.2
3287. The maximum size of grains of silts is about-
0.06mm
0.5mm
0.2mm
1mm
3288. Chemical weathering of soil is caused due to-
oxidation
hydration
carbonation & leaching
all of these
3289. ID-এর সর্বনিম্ন মান কোনটি?
- ১
-২
২
ব্যাখ্যা: ID-এর সর্বনিম্ন মান = ০ হয়।
3290. The soil transportated by running water is called-
aeolian soil
alluvial soil
marine soil
lacustrine soil
3291. Residual soils are-
sands
silts
clays
all of these
3292. The minimum size of grains of silts is about-
0.0002mm
0.02mm
0.002mm
0.2mm
3293. The specific gravity of a soil is the ratio of unit weight of soil solids to that of water at a temperature of-
4°
27°
17°
36°
3294. The bearing capacity of soil can be improved by-[BREB-15]
increasing the depth of footing
draining the sub-soil water
ramming the granular material like crushed stone in the soil
all of the above
ব্যাখ্যা: The following techniques can be used for improving bearing capacity of soil as per the site condition. (1) Increasing depth of foundation (i) Draining the soil (iii) Compacting the soil (iv) Confining the soil (v) Replacing the poor soil (vi) Using grouting material (vii) Stabilizing the soil with chemicals.
3295. Soils are derived from..............rocks.
igneous
metamorphic
sedimentary
any one of these
3296. Silt particle-এর সর্বনিম্ন Size কত? [MOCA-19]
0.002mm
0.02mm
0.001mm
1mm
ব্যাখ্যা: Silt particle-এর সাইজ হচ্ছে 0.002mm to 0.06mm 1
3297. The density of soil mass is expressed in-
kg/m²
N/m²
kg/m³
N/m³
3298. The soil transported by wind is called-
aeolian soil
alluvial soil
marine soil
lacustrine soil
3299. কোন ধরনের Soil-এর Angle of internal friction সবচেয়ে বেশি হবে? [MOCA-19]
Angular grained loose sand
Angular grained dense sand
Clay
Round grained dense sand
ব্যাখ্যা: যে Soil-এর Angle of internal friction বেশি, সে Soil-এর Shear stress বেশি।
3300. Which of the following soil is transported by wind?
Talus
Drift
Loess
all of these