Civil engineering Questions and solutions set - 10
Civil engineering Questions and solutions set - 10
Question:-
Option (A)
_{}
Option (B)
_{}
Option (C)
_{}
Option (D)
_{}
Correct Option:
C
Question Solution:
When all the stresses are assumed to be tensile, then strain in any particular direction is given as
ε_{x} = _{}
Here σ_{x} = - σ_{1}; σ_{y} = - σ_{2}; σ_{z} = - σ_{2}
therefore, (ε_{y})_{c} = _{}
= _{}
=> (ε_{y})_{c} = _{} ...(i)
when σ_{x} = -σ_{1}; σ_{y} = 0; σ_{z} = 0, then
(ε_{y})_{a} = _{}
=> (ε_{y})_{a} = _{}...(ii)
But, (ε_{y})_{c} = _{}
=> _{} = _{}
=> μσ_{1} + μσ_{2} - σ_{2} = _{}
=> _{}= σ_{2}(1 - μ)
=> σ_{2} = _{}
Question:-
Option (A)
Consolidated Undrained Test (CU)
Option (B)
Unconsolidated Undrained Test (UU)
Option (C)
Consolidated Drained Test (CD)
Option (D)
All are equally suitable
Correct Option:
B
Question:-
Option (A)
15.6°
Option (B)
10.6°
Option (C)
8.6°
Option (D)
13.6°
Correct Option:
C
Question Solution:
Given,
φ' = 30°; &γ_{sat} = 21 kN/m^{3};
F = 2; &β = ?; &γ' = &γ_{sat} - &γ_{w}
We know that,
Factor of safety
F = _{}
=> 2 = _{}
=> tan&β = _{}
=> &β = 8.6°
Question:-
Option (A)
1 cm
Option (B)
2 cm
Option (C)
3 cm
Option (D)
4 cm
Correct Option:
A
Question Solution:
Settlement ∝ _{}
S_{1} ∝ _{}
S_{2} ∝ _{} => S_{2} ∝ log 2 = S_{1}
Question:-
Option (A)
_{}
Option (B)
_{}
Option (C)
_{}
Option (D)
_{}
Correct Option:
D
Question:-
Option (A)
112.5 kN/m
Option (B)
125.5 kN/m
Option (C)
95.85 kN/m
Option (D)
102.5 kN/m
Correct Option:
A
Question Solution:
Earth pressure at rest = _{}
Total earth pressure = _{}
= _{} = _{}
= 112.5 kN/m