Civil Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 34)
34.
The deflection of any rectangular beam simply supported, is
directly proportional to its weight
inversely proportional to its width
inversely proportional to the cube of its depth
directly proportional to the cube of its length
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
45 comments Page 3 of 5.

Abhi said:   8 years ago
All answer are correct.

Pradipto Sarkar said:   8 years ago
As per my knowledge, the answer will be (E)... because;

(a) not directly proportional to its weight but the load.
(b) I may be 1/12 db^3.
(c) same as (b).
(d) power of l changes with the load.

Keshav said:   8 years ago
It is also inversely proportional to width.

Tailma mahesh said:   8 years ago
Good explanation @Bikash Kabiraj.

Deb said:   8 years ago
Yes, all the above are correct.

Bikash kabiraj said:   8 years ago
W is applied force.
Deflec=wl^3/48ei,
i=moment of inertia,
i=bd^3/12 so option c is correct.

Pavan said:   8 years ago
According to me, the answer should be all the above read it carefully you will understand.

Jwala said:   9 years ago
Yes, option b and c are correct.

Vishnu said:   9 years ago
@Dhanya.

In case of udl then, deflection = 5wl^4/384EI.

So it is wrong.

Sanjeev ranjan said:   9 years ago
All answers are correct, all of the above is a better option at the place of none of these.


Post your comments here:

Your comments will be displayed after verification.