City Guilds Model Questions Vol1 2017 Engineering Question 46
Practice objective / multiple choice question 46 from the 2017 City Guilds Model Questions Vol1 Engineering examination.
A solid circular steel rod is subjected to an axial tensile load of \(30\text{ kN}\) and a bending moment of \(12\text{ kN·m}\) at its mid‑span. The material has a yield stress of \(250\text{ MPa}\). Using the maximum normal stress theory and requiring a factor of safety of 2, determine the minimum integer diameter (in mm) of the rod. (Assume the rod is solid, stress is calculated as \(\sigma_{\text{max}} = \sigma_{\text{axial}} + \sigma_{\text{bending}}\), and use \(\pi = 3.1416\).)
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This is City Guilds Model Questions Vol1 2017 Engineering Question 46. It is one of the objective questions from the 2017 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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