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Question
A rectangular strut is 150 mm and 120 mm thick. It carries a load of 180 kN at an eccentricity of 10 mm in a plane bisecting the thickness. Find the maximum and minimum intensities of stress in MPa in the section.
A.
10, 6
B.
14, 7
C.
12, 6
D.
14, 6
Answer ( Option D)

14, 6

Solution

Given: 
Width (b) = 150 mm; 
Thickness (d) = 120 mm;
Load (P) = 180 kN = 180 × 103 N; 
& Eccentricity (e) = 10 mm.
Now calculating the area of the strut,
A = b × d = 150 × 120 = 18000 mm2

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