City Guilds Model Questions Vol1 2017 Engineering Question 15
Practice objective / multiple choice question 15 from the 2017 City Guilds Model Questions Vol1 Engineering examination.
A steel rod 2 m long with a cross‑sectional area of 150 mm² is subjected to a tensile load of 45 kN and a temperature rise of 60 °C. The Young's modulus of steel is 200 GPa and its coefficient of linear expansion is \(12 \times 10^{-6}\) /°C. (a) Determine the total elongation of the rod, taking into account both mechanical strain and thermal strain. (b) If the allowable elongation for the application is 0.8 mm, calculate the factor of safety based on the allowable elongation.
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About This Question
This is City Guilds Model Questions Vol1 2017 Engineering Question 15. It is one of the objective questions from the 2017 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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