CampusFin

Which of the following materials is not used for expansion purposes?

Review the verified answer and explanation for this PPSC Punjab Public Service Commission past-paper question on CampusFin.

Which of the following materials is not used for expansion purposes? Answer: Wood

Question context

This question is part of ⚙️ Mechanical Eng within the broader 🛠️ Engineering Essentials subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.