Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 19 (Q.No. 42)
42.
A timber beam of 100 mm width and 200 mm depth is reinforced with two steel plates of 100 mm width and 5 mm thickness as shown in figures.

Which one of the following statements is correct for the same value of bending stress in the timber ?
Moment of resistance in figure I will be more than that in figure II
Moment of resistance in figure II will be more than that in figure I
Moment of resistance in figure I will be equal to that in figure II
No logical comparison can be made
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

Rahul said:   1 year ago
The moment of resistance is proportional to the lever arm hence, in figure 1 steel plates are far away from the centre so the lever arm will be more.

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