A beam is a structural member predominantly subjected to:
Try it first: pick an option, then read the explanation.
Correct answer: A. Transverse loads
Asked in SSC JE 23/01/2018 (Evening); SSC JE 03/03/2017 (Morning)
Detailed Explanation
Members are named by the main kind of load they carry: ties and struts/columns carry axial load, shafts carry twisting moment, and beams carry transverse load.
Why “Transverse loads” Is Correct
A load perpendicular to a member's longitudinal axis is a transverse load. Floor loads on a beam act this way, producing shear force and bending moment. So a beam is predominantly subjected to transverse loads.
Why the Other Options Are Wrong
- B. Axial forces: Members mainly under axial force are columns, struts and ties.
- C. Twisting moment: Members mainly under twisting moment are shafts.
- D. None of these: Option (a) is correct.
Key Point
Beam = transverse load → shear + bending.
Key Concepts for Students
- Beam-columns carry both axial load and bending.
- A beam's flexural stress: σ = My/I.
- Supports: simply supported, cantilever, fixed, continuous, overhanging.
Practice more: this is question 10 in Beams and Trusses MCQs – Part 1. Try the whole set and check every answer instantly.