MCQ
25741. The coefficient of permeability of slit is---that of clay.
same as
less than
more than
none of these
25742. The liquid limit exists in-
sandy soils
gravel soils
silty soils
clays
25743. When the consistency index is zero, then the soil is at its-
elastic limit
plastic limit
liquid limit
semi-solid state
25744. 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
25745. The liquid limit minus plastic limit is termed as-
flow index
plasticity index
shrinkage index
liquidity index
25746. The critical gradient of the seepage of water in a soil medium is-
(1-G)/( 1+e)
(1+e)/(1-G)
(G-1)/( 1+e)
(1+e)/( G-1)
25747. Which of the following have an influence on the value of permeability?
Grain size
Void ratio
Degree of saturation
all of these
25748. The sensitivity of a normal clay is about-
2 to 4
8 to 15
4 to 8
15 to 20
25749. 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)
25750. Which of the following is highly permeable?
Gravel
Sand mixture
Coarse sand
Clay
25751. The critical gradient for all soils is normally-
0.5
1
1.5
2.5
25752. The critical gradient of the seepage of water--- with the increase in S.G. of soil.
increases
decreases
same
infinity
25753. The unconfined compressive strength of a hard clay is-
10 to 25kN/m²
150 to 400kN/m²
25 to 150kN/m²
above 400kN/m²
25754. পাহাড়ের ঝুলন্ত অংশে কম RL-এর কন্টুর রেখা মনিটরের কোন দিকে গমন করে? [PPA-23]
বাইরের দিকে
লম্বালম্বি দিকে
আড়াআড়ি দিকে
ভেতরের দিকে
ব্যাখ্যা: দুটি কন্টুর লাইন পরস্পরকে ছেদ করে না। তবে পাহাড়ের ঝুলে থাকা অংশের কন্টুর লাইন ভেতরের দিকে প্রবেশ করে।
এজন্য অন্য কন্টুর লাইনকে ছেদ করে। -
25755. The plasticity index is the ratio of liquidity index and flow index.
Right
Wrong
25756. The water content in a soil at which just shear strength develops is called-
liquid limit
elastic limit
plastic limit
shrinkage limit
25757. A flow net is used to determine the-
seepage flow
seepage pressure
exit gradient
all of these
25758. The plastic limit exists in-
sandy soils
gravel soils
silty soils
clays
25759. 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
25760. কোনটি দ্বারা গড় সমুদ্রতল বুঝানো হয়?
HFL
HSL
FL
MSL
ব্যাখ্যা: HFL = Highest Flood Level (সর্বোচ্চ বন্যাতল)
FL = Flood Level (বন্যাতল)
MSL Mean Sea Level (গড় সমুদ্রতল)