The plastic section modulus Z_p for a symmetric I-section is used when the section class is:

Why is this the answer?

For Plastic and Compact sections (IS 800), design moment capacity = f_y x Z_p / gamma_m0. For Semi-compact: f_y x Z_e / gamma_m0. For Slender: effective section considering local buckling.

Related Steel Structures MCQs

More solved Steel Structures questions for AE/JE Civil Engineering exams.

• The 'residual stresses' in hot-rolled steel sections arise from:
• The 'effective slenderness ratio' for a single angle compression member (IS 800)...
• 'Fatigue failure' in steel structures occurs under:
• The 'tension field action' in a plate girder web after buckling means:
• Bolts in 'slip-critical' (HSFG) connections resist load by:
• The 'portal frame analysis' approximation for multi-storey frames under horizontal load...