A cotter joint is capable of transmitting

Question

Question

This question was previously asked in

BPSC AE Paper 6 (Mechanical) 25th March 2022 Official Paper

Answer 1

Explanation:

Cotter :

Cotter's joint is used to join two shafts which are in Rotation.
Cotter's joint is used when the members are subjected to Axial Tensile or Compressive Loading.

Tensile Failure of Rod

Each rod of diameter d is subjected to a tensile force P. The tensile stress in the rod is given by,

\(\begin{array}{l} {σ _t} = \frac{P}{{\left[ {\frac{\pi }{4}{d^2}} \right]}}\\ \Rightarrow d = \sqrt {\frac{{4P}}{{\pi {σ _t}}}} \end{array}\)

Where σt is the permissible tensile stress for the rods.