City Guilds Model Questions Vol1 2019 Engineering Question 23
Practice objective / multiple choice question 23 from the 2019 City Guilds Model Questions Vol1 Engineering examination.
A cylindrical steel rod is to be machined to a nominal length of \(500\) mm (tolerance \(\pm0.2\) mm) and a nominal diameter of \(50\) mm (tolerance \(\pm t\) mm, where \(t\) is to be determined). The material's coefficient of linear thermal expansion is \(12\times10^{-6}\ \text{°C}^{-1}\). The rod will operate between \(20\)°C and \(80\)°C. It must fit into a clearance hole whose nominal diameter is \(50.10\) mm with a tolerance of \(\pm0.03\) mm. Assuming uniform expansion of both parts, find the maximum allowable machining tolerance \(t\) for the rod's diameter at \(20\)°C so that the fit is guaranteed at \(80\)°C.
Answer Options
About This Question
This is City Guilds Model Questions Vol1 2019 Engineering Question 23. It is one of the objective questions from the 2019 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Hard .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.