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Which of the following may not occur due to excessive deflection?

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in Design of Steel Structures by (962k points)
Which of the following may not occur due to excessive deflection?

(a) ponding problem in roofs

(b) misalignment of supporting machinery

(c) cracking of plaster ceilings

(d) twisting of beam

The question was posed to me in my homework.

Question is taken from Deflection & Holes in Beams topic in chapter Design of Beams of Design of Steel Structures

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Right choice is (d) twisting of beam

The explanation is: Excessive deflection may cause cracking of plaster ceilings, misalignment of supporting machinery and cause excessive vibration, ponding problem in roofs, etc.  Hence deflection in beam needs to be limited.

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