What is lateral torsional buckling?(a) buckling of beam loaded in plane of its weak axis and buckling about its stronger axis accompanied by twisting(b) buckling of beam loaded in plane of its strong axis and buckling about its weaker axis accompanied by twisting(c) buckling of beam loaded in plane of its strong axis and buckling about its weaker axis and not accompanied by twisting(d) buckling of beam loaded in plane of its weak axis and buckling about its stronger axis and not accompanied by twistingI got this question by my college professor while I was bunking the class.Question is taken from Lateral Torsional Buckling in section Design of Beams of Design of Steel Structures

What is lateral torsional buckling?(a) buckling of beam loaded in plan

1.	What is lateral torsional buckling?(a) buckling of beam loaded in plane of its weak axis and buckling about its stronger axis accompanied by twisting(b) buckling of beam loaded in plane of its strong axis and buckling about its weaker axis accompanied by twisting(c) buckling of beam loaded in plane of its strong axis and buckling about its weaker axis and not accompanied by twisting(d) buckling of beam loaded in plane of its weak axis and buckling about its stronger axis and not accompanied by twistingI got this question by my college professor while I was bunking the class.Question is taken from Lateral Torsional Buckling in section Design of Beams of Design of Steel Structures
Answer» CORRECT option is (b) buckling of BEAM loaded in plane of its strong axis and buckling about its weaker axis accompanied by twisting For explanation I WOULD say: The buckling of beam loaded in plane of its strong axis and buckling about its weaker axis accompanied by twisting (torsion) is called as torsional buckling. The LOAD at which such beam buckles can be much less than that causing FULL moment capacity to develop.

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Which of the following are not correct regarding design of beams with openings?(a) diameter of circular opening should be restricted to 0.5D(b) for rectangular stiffened openings depth should be less than 0.7D and length less 2D(c) for rectangular unstiffened openings, depth should be less than 0.5D and length less than 1.5D(d) point load should be applied within a distance d from adjacent openingThis question was addressed to me in an interview for internship.My question is taken from Deflection & Holes in Beams in portion Design of Beams of Design of Steel Structures
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