MCQ
25761. Soils are derived from..............rocks.
igneous
metamorphic
sedimentary
any one of these
25762. Residual soils are-
sands
silts
clays
all of these
25763. A soil having uniformity coefficient more than 10, is called-
uniform soil
poor soil
well graded soil
coarse soil
25764. The density of soil mass is expressed in-
kg/m²
N/m²
kg/m³
N/m³
25765. The soil transported by wind is called-
aeolian soil
alluvial soil
marine soil
lacustrine soil
25766. Which of the following soil is transported by wind?
Talus
Drift
Loess
all of these
25767. The ratio of the unit weight of soil solids to that of water is called-
void ratio
porosity
specific gravity
degree of saturation
25768. Chemical weathering of soil is caused due to-
oxidation
hydration
carbonation & leaching
all of these
25769. The specific gravity of soil solids is determined by-
pycnometer method
hydrometer analysis
sieve analysis
all of these
25770. The approximate void ratio in sandy soils is-
0.2
0.8
0.6
1.2
25771. The minimum size of grains of silts is about-
0.0002mm
0.02mm
0.002mm
0.2mm
25772. 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°
25773. The ratio of the volume of air voids to the volume of voids, is called-
void ratio
air content
degree of saturation
porosity
25774. Sieving is not practicable for grainc sizes smaller than about-
0.075mm
0.095mm
0.15mm
0.2mm
25775. The unit weight of a soil at zero air voids depends upon-
unit weight of water
water content
specific gravity
all of these
25776. The standard temperature at which the hydrometer is calibrated is-
10°C
15°C
20°C
27°C
25777. The maximum size of grains of silts is about-
0.06mm
0.5mm
0.2mm
1mm
25778. The relation between dry unit weight (γ_d), S.G. (G), void ratio (e) or porosity N is-
γ_d=(Gγ_ω)/(1+e)
γ_d=(Gγ_ω)/(1-e)
γ_d=Gγ_ω (1-n)
γ_d=Gγ_ω (1+n)
25779. A soil having particles of nearly the same size is known as-
uniform soil
poor soil
well graded soil
coarse soil
25780. The smallest sieve size according to Indian standards is-
0.0045mm
0.045mm
0.45mm
0.154mm