MCQ
25781.
The water content in a soil at which just shear strength develops is called-
liquid limit
elastic limit
plastic limit
shrinkage limit
25782.
Sieving is not practicable for grainc sizes smaller than about-
0.075mm
0.095mm
0.15mm
0.2mm
25783.
The specific gravity of soil solids is determined by-
pycnometer method
hydrometer analysis
sieve analysis
all of these
25784.
The sensitivity of a normal clay is about-
2 to 4
8 to 15
4 to 8
15 to 20
25785.
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)
25786.
The unconfined compressive strength of a hard clay is-
10 to 25kN/m²
150 to 400kN/m²
25 to 150kN/m²
above 400kN/m²
25787.
A soil having uniformity coefficient more than 10, is called-
uniform soil
poor soil
well graded soil
coarse soil
25788.
The unconfined compressive strength of a very soft clay is-
10 to 25kN/m²
150 to 400kN/m²
25 to 150kN/m²
above 400kN/m²
25789.
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)
25790.
The liquid limit exists in-
sandy soils
gravel soils
silty soils
clays
25791.
The liquid limit minus plastic limit is termed as-
flow index
plasticity index
shrinkage index
liquidity index
25792.
The plasticity index is the ratio of liquidity index and flow index.
Right
Wrong
25793.
The density of soil mass is expressed in-
kg/m²
N/m²
kg/m³
N/m³
25794.
The plastic limit exists in-
sandy soils
gravel soils
silty soils
clays
25795.
The liquidity index (in percentage) is given by-
(ω_p-ω)*100/I_p
(ω_L-ω)*100/I_p
(ω_L-ω_p )*100/I_p
(ω-ω_p )*100/I_p
ব্যাখ্যা: ব্যাখ্যা: Here, ω = Natural water content
ω_p = Plastic limit
I_p= Plasticity index
25796.
When the consistency index is zero, then the soil is at its-
elastic limit
plastic limit
liquid limit
semi-solid state
25797.
Which of the following is highly permeable?
Gravel
Sand mixture
Coarse sand
Clay
25798.
A soil having particles of nearly the same size is known as-
uniform soil
poor soil
well graded soil
coarse soil
25799.
The standard temperature at which the hydrometer is calibrated is-
10°C
15°C
20°C
27°C
25800.
The smallest sieve size according to Indian standards is-
0.0045mm
0.045mm
0.45mm
0.154mm