All Exams Test series for 1 year @ ₹349 only
Question

For compression members, the Ɪ-section is preferred because it ______.

This question was previously asked in
RRB JE 2025 CBT 2 Mechanical and Allied Engg Question Paper English (2-Jul-2026) (Shift-1)
The correct answer is

has a lower weight for the same strength

For compression members (columns/struts), the critical failure mode is buckling. The Euler buckling load Pcr = π²EI/Le² depends on the moment of inertia I. The I-section efficiently distributes material far from the centroidal axis, giving a high moment of inertia (and high radius of gyration r = √(I/A)) relative to the cross-sectional area. This means for the same compressive strength, an I-section uses less material/lower weight than a solid rectangular or circular section.

Was this answer helpful?

Important Questions from Compression Member

  1. The structural member carrying compressive load in a truss is called:

  2. The maximum slenderness ratio of a compression member which carry loads resulting from dead loads and superimposed loads

  3. A strut is a structural member subjected to

  4. Effective length of steel column effectively held at both ends in position but not restrained in directions is ‘x’ times its length between two ends, where ‘x’ is equal to

  5. What is the Imperfection factor for buckling class "A & B"

Need Expert Advice?
Test Series
RRB JE img
Railways
RRB JE (CBT 1 + CBT 2) 2026 Mock Test Series
1509 Tests 19 Tests Free
247 Attempts
4.3(107)
English, Hindi

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App