City Guilds Model Questions Vol1 2020 Engineering Question 25
Practice objective / multiple choice question 25 from the 2020 City Guilds Model Questions Vol1 Engineering examination.
A steel rod of length \(2.00\ \text{m}\) and diameter \(20\ \text{mm}\) is subjected to a tensile stress of \(120\ \text{MPa}\). The material has a Young's modulus of \(200\ \text{GPa}\) and a yield strength of \(250\ \text{MPa}\).\n\n(a) Determine the elongation of the rod in millimetres, correct to one decimal place.\n(b) With a required factor of safety of 1.5 based on yield strength, state whether the rod is safe under the given stress.
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About This Question
This is City Guilds Model Questions Vol1 2020 Engineering Question 25. It is one of the objective questions from the 2020 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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