Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 11 (Q.No. 13)
13.
What is the ratio of the permissible bearing stress in power driven shop rivets relative to the yield stress of mild steel ?
Discussion:
10 comments Page 1 of 1.
Bhanuj said:
1 year ago
The permissible bearing stress PDS rivet is 300 N/mm2.
The yield stress of mild steel is fy (By default 250).
Therefore ratio is 300/250=1.2 (ANS).
Note: Where the permissible bearing stress in RIVET and MEMBER both are diff.
As the Permissible bearing stress of MEMBER is 0.75fy.
Permissible bearing stress in PDS RIVET is 300N/mm2.
The yield stress of mild steel is fy (By default 250).
Therefore ratio is 300/250=1.2 (ANS).
Note: Where the permissible bearing stress in RIVET and MEMBER both are diff.
As the Permissible bearing stress of MEMBER is 0.75fy.
Permissible bearing stress in PDS RIVET is 300N/mm2.
(1)
Macdy said:
4 years ago
The question is from wsm as rivet is mentioned. Now design stress in axial tension = 0.6fy and in design bearing stress = 0.75fy.
Now for bolts/rivet, fy is not defined n we take fu which is approx 400 . Hence yield stress for for rivet = 0.6 * 400 = 240.
In bearing stress 0.75fy.
Hence, 0.6/0.75 = 0.8.
Now for bolts/rivet, fy is not defined n we take fu which is approx 400 . Hence yield stress for for rivet = 0.6 * 400 = 240.
In bearing stress 0.75fy.
Hence, 0.6/0.75 = 0.8.
(1)
Nikhil said:
5 years ago
Anyone suggest the IS code clause?
Prince said:
5 years ago
300/250 = 1.2 (is the correct answer).
(1)
Abi said:
5 years ago
Actually 300/250=1.2 is correct answer for permissible bearing stress to yield stress of mild steel.
(3)
Adarsh said:
6 years ago
250/300= 0.83.
250- yield stress in mild steel.
300- permissible bearing stress in rivet.
250- yield stress in mild steel.
300- permissible bearing stress in rivet.
Phani said:
7 years ago
Ans = 1.25/1.5 = 0.8333.
Sania said:
8 years ago
250/300= 0.83.
250- yield stress in mild steel.
300- permissible bearing stress in rivet.
250- yield stress in mild steel.
300- permissible bearing stress in rivet.
(2)
Jyoti said:
8 years ago
How does it comes? please explain.
Khushhal said:
8 years ago
How its comes? Please explain.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers