Modern Railway Tracks Consist of Continuous Welded-Steel Rails of 1

question 94

Multiple Choice

Modern railway tracks consist of continuous welded-steel rails of 1.0-km lengths. If the coefficient of linear expansion of steel is 11 × 10^-6 K^-1, by how much would such a rail change in length between the highest summer temperature 40^oC) and the lowest winter temperature -40^oC) ?

• A) 44 cm
• B) 88 cm
• C) 0.88 mm
• D) 1.8 mm
• E) 4.4 cm

---

Definitions:

Highly Structured

An organized and clearly defined system or framework with specific rules, procedures, and roles.

Inhibitions

Psychological barriers or restraints that limit or hinder an individual's actions or behaviors.

Norm Intensity

The degree to which a norm is accepted and enforced within a group or organization, affecting members' behaviors and attitudes.

Cohesiveness

The degree to which members of a group or team are united in pursuing common goals and how well they bond with each other.