Section B · Model answers, derivations & worked numericals
Subjective Question Bank
Organised by the four Section-B blocks, exactly as the paper is set. Each question shows its marks, its source (past paper / internal / model), and a likelihood rating (★). Click any question to reveal a full model answer or a step-by-step numerical.
★ Most-recent paper — First Internal Assessment, 25 May 2026 (FM 10, 1 hour)
Q1 plane stress vs plane strain · Q2 fracture stress of a “similar sheet” (Juvinall Ch. 6 + Shukla) · Q3 S-N relation with CL/CG/CS factors (Juvinall Ch. 8) · Q4 Paris-law crack-propagation life (Shukla Ch. 5). All four are worked below and tagged ★ Internal 2026. Filter to “Internal 2026” to drill just these.