City Guilds Model Questions Vol1 2025 Engineering Question 42
Practice objective / multiple choice question 42 from the 2025 City Guilds Model Questions Vol1 Engineering examination.
A composite rectangular bar of length \(0.5\ \text{m}\) has a total cross‑sectional area of \(200\ \text{mm}^2\). Material A occupies 50 % of the area and has Young's modulus \(E_A = 200\ \text{GPa}\). Material B occupies the remaining area. When a tensile force of \(30\ \text{kN}\) is applied, the bar elongates by \(0.5\ \text{mm}\). Assuming both materials experience the same strain, calculate the Young's modulus \(E_B\) of material B in gigapascals.
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About This Question
This is City Guilds Model Questions Vol1 2025 Engineering Question 42. It is one of the objective questions from the 2025 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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