Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 4 (Q.No. 41)
41.
The section modulus of a rectangular section is proportional to
Discussion:
21 comments Page 1 of 3.
Jimmy said:
1 decade ago
How? As per calculation it is A*d/6. Answer should be C.
S s said:
9 years ago
You are right @Jimmy, its bd2/6.
RANJAN PATRA said:
9 years ago
Answer should be option C.
Rakesh kumar sah said:
9 years ago
Section modulus = Z/A.
Hence option A is correct.
Hence option A is correct.
Suwami said:
9 years ago
Z = I/y = Ak2/y.
Yogesh said:
9 years ago
Z = bd^2/6.
Z ^ bd^2.
Z^(bd) x (d).
Z ^ (Area) x (Depth).
Answer should be 'C'.
Z ^ bd^2.
Z^(bd) x (d).
Z ^ (Area) x (Depth).
Answer should be 'C'.
Baloch said:
9 years ago
E seems right,
The second moment of area of rectangular sec = bh^3 / 12 , and its Z = bh^2/6 (half).
The second moment of area of rectangular sec = bh^3 / 12 , and its Z = bh^2/6 (half).
Thebaloch said:
8 years ago
S = m/z
Z = M/S
S = F/A
So Z=AM/F.
So, A is correct.
Z = M/S
S = F/A
So Z=AM/F.
So, A is correct.
Sehra said:
8 years ago
Z=I/y max=bd^2 /6
Z=Ad/6 A=bit
Z-A or Z- d.
Z=Ad/6 A=bit
Z-A or Z- d.
SHubam said:
7 years ago
Correct answer is A. Depending upon the axis which you are taking for calculation whether it is Ix or Iy. Depth & width changes but the area remains same. In simple language,
Ix= product of area n depth.
Iy = product of area n width.
Hence in this question. Axis is not given. So Z will change with the change of I. But area remains same in both the conditions.
Ix= product of area n depth.
Iy = product of area n width.
Hence in this question. Axis is not given. So Z will change with the change of I. But area remains same in both the conditions.
(7)
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