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5 Questions

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Mastering Long Welded Rails

Created by

@RelaxedErudition

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Questions and Answers

Which type of rail expands and contracts throughout its length due to temperature variation?

Fish-plated

SWR (correct)

LWR

CWR

What is the maximum length of LWR on a broad gauge track?

13m

39m

250m

One block section (correct)

What is the purpose of the ACD (anti creep device) in DMRC track?

To prevent rail expansion and contraction

To increase the length of LWR

To reduce stress in the central portion of LWR

To transfer LWR forces through Points and Crossing (correct)

What is the formula for calculating stress in the central portion of LWR?

<p>Stress in central portion= P/A</p> Signup and view all the answers

What is the formula for calculating strain in the central portion of LWR?

<p>Strain= Lαt/L</p> Signup and view all the answers

Study Notes

Rail Characteristics

Longitudinal Welded Rail (LWR) expands and contracts throughout its length due to temperature variation.

LWR Length Limitations

The maximum length of LWR on a broad gauge track is limited.

Anti-Creep Device (ACD)

ACD is used in DMRC track to prevent creeping of the rail.

LWR Stress Calculation

The formula for calculating stress in the central portion of LWR is [insert formula].

LWR Strain Calculation

The formula for calculating strain in the central portion of LWR is [insert formula].

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Description

Test your knowledge on Long Welded Rails (LWR) and their maintenance. Learn about the different types of rails, such as SWR, LWR, and CWR, and how they expand and contract. Understand the concept of creep resistance and its impact on rail expansion. Challenge yourself with questions on rail panels and temperature rises. Take the quiz now and enhance your understanding of LWR and its maintenance.