How much space must be left between adjacent rails

Reference no: EM13513972

A) Steel train rails are laid in 12.6m -long segments placed end to end. The rails are laid on a winter day when their temperature is -2.00C. How much space must be left between adjacent rails if they are just to touch on a summer day when their temperature is 30.5C?

(in mm)

B) If the rails are mistakenly laid in contact with each other, what is the stress in them on a summer day when their temperature is 30.5?

(Pa)

Reference no: EM13513972

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