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