Steel railroad rails 10 m long are laid with a clearance of 3 mm at a temperature of 15 °C. Coefficient of thermal expan

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Steel Railroad Rails 10 M Long Are Laid With A Clearance Of 3 Mm At A Temperature Of 15 C Coefficient Of Thermal Expan 1 (29.15 KiB) Viewed 40 times

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Steel railroad rails 10 m long are laid with a clearance of 3 mm at a temperature of 15 °C. Coefficient of thermal expansion is 11.7 x 10^-6/°C, E=200,000 MPa. Which of the following gives the gap between railroad rails at a temperature of 30 °C. 1.24 mm 3.24 mm 0.24 mm 2.24 mm