Questions and Answers
What should not be discounted even if it contains misspellings?
Which areas must be mapped by the team?
What must be used by all teams to mark their mine maps?
What should teams do for objects/conditions not covered by the legend?
Signup and view all the answers
What type of mapping issues will be assessed as a discount?
Signup and view all the answers
What must be marked on the team's maps when any ventilation structure is partially removed?
Signup and view all the answers
How should newly built, intact, and airtight structures be treated in mapping?
Signup and view all the answers
After stopping the clock, what must be confirmed on the field?
Signup and view all the answers
Which of the following must be located on the map for scoring purposes?
Signup and view all the answers
What key information should be noted on the maps regarding fans?
Signup and view all the answers
Study Notes
Team Mapping and Responsibilities
- Misspellings on team maps do not disqualify the map's validity.
- Teams are not accountable for mapping objects or conditions in the fresh-air base but must include air shafts and mapped objects regardless of exploration status.
- Unsafe conditions in the fresh-air base that cannot be explored by prior teams are exempt from mapping requirements.
Mapping Guidelines
- Objects in hazardous areas must be mapped if the team passes by them.
- MSHA-supplied legend should be used for marking mine maps; additional unlisted items should be marked with an "X".
- Any intact ventilation structures must be referenced in the team's maps even if partially removed.
Recording and Object Locations
- Essential objects to be mapped include:
- Locations of people, smoke, gases, caved areas, unsafe roofs, ignition sources, fans, and fires.
- Changes in conditions, such as intact structures and their operational status, must be noted on the maps.
- Finalized ventilation maps are confirmed with the team captain once operations cease.
Timber Setting Requirements
- New structures built by the team are classified as temporary stoppings, regardless of purpose.
- Timber must be set no more than 5 feet apart and from a safe rib if working in unsafe roof areas.
- Existing timbers from previous teams cannot be utilized by the current team.
Contamination Protocols
- Contaminated areas must be fully explored unless it poses a safety risk.
- Teams must maintain exploration of contaminated entries or adjacent areas until blocked.
- If contaminants are found, teams can select the order of exploration but must return to any blocked areas as soon as safe.
Definitions and Key Terms
- Opening: Any mining entry that connects to rooms or crosscuts.
- Crosscut: A passage connecting two entries.
- Contaminant: Includes smoke, high levels of carbon monoxide, methane, or low oxygen levels.
- Contaminated areas are considered unsafe until the source is identified and resolved.
Operational Rules
- Failure to record all required objects or conditions will result in a score discount.
- Dotted lines must reflect all explored areas, with notation on any removals or changes made to ventilation structures.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your understanding of the mine mapping procedures. This quiz covers the guidelines for spelling accuracy, mapping responsibilities, and the distinction between fresh air base conditions and other mine features. Ensure you are familiar with the rules to excel in your assessments.
