Podcast
Questions and Answers
Which type of rail expands and contracts throughout its length due to temperature variation?
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?
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?
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?
What is the formula for calculating stress in the central portion of LWR?
What is the formula for calculating strain in the central portion of LWR?
What is the formula for calculating strain in the central portion of LWR?
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.
