In this guide
PRACTICE PROMPT
Use this fictional setting to practise clear reasoning. It is not an assessment or institution paper.
The setting
A steel roof purlin, 6 m span, 1.8 m spacing, with snow drift against a parapet.
Your task
Size the purlin for the drift case.
What a useful response would show
The drift load recognised as governing over the uniform case.
Reflect afterwards
- What assumption mattered most?
- What would you check before using this on a real project?
- Could another engineer follow your recommendation?