See also: NIOSH mining products
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| Type: | |
Invisible Ink Exercise |
| Audience: | |
Underground coal miners |
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Length | Duration: | |
11 questions | 30-45 mins. administration + 30 mins. Discussion |
| Skills Reviewed: | |
Hazard recognition, Accident prevention, Preventing unsafe work practices, Ground control |
Two underground coal miners are asked to advance the power center, mobile equipment, and trailing cables in the working section. While surveying their assignment, they notice coal spalling along the left rib of the belt entry. They must investigate and determine if a problem exists with roof and rib conditions and the diagonal measurements of several intersections. They are to take any corrective actions that might be necessary.
| 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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