MCQ
25741. The critical gradient for all soils is normally-
0.5
1
1.5
2.5
25742. The liquid limit minus plastic limit is termed as-
flow index
plasticity index
shrinkage index
liquidity index
25743. The water content in a soil at which just shear strength develops is called-
liquid limit
elastic limit
plastic limit
shrinkage limit
25744. Which of the following have an influence on the value of permeability?
Grain size
Void ratio
Degree of saturation
all of these
25745. The sensitivity of a normal clay is about-
2 to 4
8 to 15
4 to 8
15 to 20
25746. A flow net is used to determine the-
seepage flow
seepage pressure
exit gradient
all of these
25747. The liquid limit exists in-
sandy soils
gravel soils
silty soils
clays
25748. The unconfined compressive strength of a hard clay is-
10 to 25kN/m²
150 to 400kN/m²
25 to 150kN/m²
above 400kN/m²
25749. 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
25750. The coefficient of permeability of slit is---that of clay.
same as
less than
more than
none of these
25751. 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)
25752. The critical gradient of the seepage of water--- with the increase in S.G. of soil.
increases
decreases
same
infinity
25753. Which of the following is highly permeable?
Gravel
Sand mixture
Coarse sand
Clay
25754. When the consistency index is zero, then the soil is at its-
elastic limit
plastic limit
liquid limit
semi-solid state
25755. 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)
25756. The plasticity index is the ratio of liquidity index and flow index.
Right
Wrong
25757. 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
25758. 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)
25759. The plastic limit exists in-
sandy soils
gravel soils
silty soils
clays
25760. 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। -