High School

We appreciate your visit to Steel rails are laid down at an air temperature of 4 C as part of a new train line in the Blue Mountains The standard. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

Steel rails are laid down at an air temperature of 4°C as part of a new train line in the Blue Mountains. The standard rail length is 12 m.

Find the length of the gap that should be left between the rails.

Answer :

To accommodate temperature changes, a gap of approximately 5.184 mm should be left between the 12-meter steel rails laid down at an initial air temperature of 4 °C, assuming a maximum temperature variation of 36 °C.

The length of the gap that should be left between the steel rails depends on the expansion and contraction properties of the material due to changes in temperature.

Steel has a coefficient of linear expansion of approximately 12 x 10^-6 per degree Celsius.

Given that the initial air temperature is 4 °C, we need to consider the maximum temperature variation that the rails might experience.

Let's assume a worst-case scenario where the temperature rises to 40 °C, resulting in a temperature difference of 36 °C.

To calculate the length of the gap, we can use the formula:

ΔL = αLΔT

Where ΔL is the change in length, α is the coefficient of linear expansion, L is the initial length, and ΔT is the temperature difference.

Substituting the values, we have:

ΔL = (12 m) × (12 x 10^-6/°C) × (36 °C)

= 5.184 mm

Therefore, the length of the gap that should be left between the steel rails is approximately 5.184 mm. This allows for the expansion of the rails under higher temperatures, preventing buckling or other damage.

To know more about temperature refer here:

https://brainly.com/question/31227245#

#SPJ11

Thanks for taking the time to read Steel rails are laid down at an air temperature of 4 C as part of a new train line in the Blue Mountains The standard. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada