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Mechanical Engineering QUESTION #2406
Question 1
For geometric similitude between model and prototype, if the linear scale ratio is \(L_r = L_m/L_p\), the area ratio is:
  • \(A_r = L_r\)
  • \(A_r = L_r^3\)
  • \(A_r = L_r^2\)✔️
  • \(A_r = L_r^{1/2}\)
Correct Answer Explanation
For geometric similitude: all corresponding lengths scale by \(L_r=L_m/L_p\). Areas scale as \(A_r=L_r^2\), volumes scale as \(V_r=L_r^3\).