See also: NIOSH mining products
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| Type: | |
Invisible Ink Exercise |
| Audience: | |
Mine foreman, supervisors, examiners, and experienced miners |
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Length: | |
12 questions |
| Skills Reviewed: | |
Mine ventilation basics, Reading ventilation maps and schematics, Making air flow and gas measurements from which to judge the adequacy of the mine ventilation, Applying correct procedures when cutting through from one section to another |
Three shifts on two sections are driving entries 4,800 feet from the mains to form a retreating longwall panel. The mine is very gassy. One section is about to cut through to the other. A number of problems develop. You need to make sure the cutthrough proceeds safely and that the ventilation for both sections remains adequate. As the problem develops, other miners make errors. If you do not correct them, lives may be lost.
The "Delta Mine Cutthrough" paper and pencil exercise is a more difficult and somewhat different version of this problem.
| Materials needed: | |
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Instructor Copy
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Problem Booklet
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1 for each trainee. May be downloaded separately or duplicated from the Instructor´s Copy. | |
Answer Sheet |
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1 for each group of 3 or 4 working the exercise. Purchased from MSHA (http://www.msha.gov/Education&Training.htm, MSHAdistributioncenter@dol.gov). You may also duplicate them locally if you or a local print shop have the ability to print invisible ink. | |
PENIB Developing Pens |
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1 for each answer sheet. Order from SICPA, Customer Service, 8000 Research Way, Springfield, VA 22153, Phone 1-888-SICPAUS or 1-888-742-7287, pen # "PENIB", a broad tipped developing pen. | |
Optional |
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Overhead projector and overheads of the Master Answer Sheet and Scoring Key found in the Instructor's Copy. | |
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