Question

A cylindrical vessel is said to be thin if the ratio of its internal diameter to the wall thickness is

• A. Less than 20
• B. Equal to 20
• C. More than 20
• D. Equal to 25

Hint:

Remember:
- Thin Cylinder $\to$ $\frac{d}{t} > 20$ (Stress assumed uniform)
- Thick Cylinder $\to$ $\frac{d}{t} \leq 20$ (Stress varies parabolically across wall)

Answer 1

The Correct Option is C