City Guilds Model Questions Vol1 2025 Engineering Question 23
Practice objective / multiple choice question 23 from the 2025 City Guilds Model Questions Vol1 Engineering examination.
A bearing has an inner radius of \(50\) mm at \(20^{\circ}\)C and expands radially with a coefficient of linear expansion \(10\times10^{-6}\) °C\(^{-1}\). A shaft that fits into this bearing is initially given a radial clearance of \(c\) mm at \(20^{\circ}\)C. The shaft itself does not expand radially. The operating temperature may rise to \(80^{\circ}\)C, and the design requires that after this temperature increase the clearance be at least \(0.1\) mm. Determine the minimum initial clearance \(c\) (in mm) that satisfies this condition. Give your answer to two decimal places.
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About This Question
This is City Guilds Model Questions Vol1 2025 Engineering Question 23. It is one of the objective questions from the 2025 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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