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