City Guilds Model Questions Vol1 2017 Engineering Question 17
Practice objective / multiple choice question 17 from the 2017 City Guilds Model Questions Vol1 Engineering examination.
A composite material is to be produced from material A (Young's modulus \(E_A=70\) GPa, density \(\rho_A=2.7\) g·cm\(^{-3}\)) and material B (Young's modulus \(E_B=200\) GPa, density \(\rho_B=7.8\) g·cm\(^{-3}\)). Using the linear rule of mixtures for modulus, the target composite modulus is \(E_c=120\) GPa. If the total mass of the composite required is \(500\) g, determine the masses of materials A and B that must be mixed (round to the nearest gram).
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About This Question
This is City Guilds Model Questions Vol1 2017 Engineering Question 17. It is one of the objective questions from the 2017 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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