Civil engineering Questions and solutions set - 11

Civil engineering Questions and solutions set - 11
Question:-
Option (A)
zero
Option (B)
320 kN-m (hogging)
Option (C)
320 kN-m (sagging)
Option (D)
None
Correct Option:
B
Question Solution:
Ma = 0,  Mc = 0
Applying the theorem of three moments for the span AB and BC.
0 x 8 + 2 Mb(8 + 8) + (0 x 8)
=
32 Mb = 10240
therefore, Mb = 320 kN-m (hogging)
Question:-
Option (A)
keeping the width uniform and varying the depth.
Option (B)
keeping the depth uniform and varying the width.
Option (C)
varying the width and depth both.
Option (D)
any one of the above
Correct Option:
D
Question:-
Option (A)
to minimize the amount of silt entering the branch canal
Option (B)
to let maximum silt be carried into the branch canal
Option (C)
for no specific purpose
Option (D)
to carry the canal across the drain
Correct Option:
A
Question:-
Option (A)
25%
Option (B)
40%
Option (C)
50%
Option (D)
60%
Correct Option:
D
Question Solution:
Consolidation is proportional to load transferred to the soil. So,
h∝(500 - 200)
h∝300 kN/m2
H∝500 kN/m2
therefore, Degree of consolidation =
=
Question:-
Option (A)
18.45 m
Option (B)
16.5 m
Option (C)
17.20 m
Option (D)
19.34 m
Correct Option:
D
Question Solution:
If the pressure at point P is p then
p - &γwghw1 + &γagha - &γwghw2 = (10.34 m x &γw x g)
=> - hw1 + = 10.34
=> = 10.34
=> = 19.34 m
Question:-
Option (A)
2.25% gain
Option (B)
2.25% loss
Option (C)
17.64% gain
Option (D)
17.25% gain
Correct Option:
D
Question Solution:
Case-I:

Case-II:

% gain of A's = = 17.25%