Question

Two strips of metal are riveted together at their ends by four rivets, each of diameter 6.0. What is the maximum tension,that can be exerted by the riveted strip if the shearing stress on the rivet is not to exceed $6.9\times {10}^7$ pa ? Assume that each rivet is to carry one- quarter of the load

• A. 3
• B. 2.5
• C. 4
• D. 5

Answer 1

The correct option is B 2.5

area of one river = $\frac{\pi D^2}{4}=\frac{\pi \times (6.0{)}^2}{4}=9\pi m{m}^2$

so, four such rivers could withstand a tension of :-

$T=4\times \left(9\pi \right)\times (6.9\times {10}^7)=2.5\times {10}^9)Pa-m{m}^2$

$=2.5KN$ is answer