City Guilds Model Questions Vol1 2025 Engineering Question 15
Practice objective / multiple choice question 15 from the 2025 City Guilds Model Questions Vol1 Engineering examination.
The diameter of a shaft varies along its length according to a quadratic function \(d(x)=ax^{2}+bx+c\) (in millimetres), where \(x\) is the distance in millimetres measured from the start of the transition. The shaft has a diameter of \(20\ \text{mm}\) at \(x=0\), a diameter of \(27\ \text{mm}\) at the midpoint \(x=20\ \text{mm}\), and a diameter of \(30\ \text{mm}\) at the end of the transition \(x=40\ \text{mm}\). Determine the diameter of the shaft at \(x=10\ \text{mm}\). Give your answer in millimetres to one decimal place.
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About This Question
This is City Guilds Model Questions Vol1 2025 Engineering Question 15. It is one of the objective questions from the 2025 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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