See also: NIOSH mining products
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Type: | |
Paper and Pencil Exercise |
Audience: | |
Underground coal miners |
Length: | |
33 questions |
Skills Reviewed: | |
Recognize proper and improper responses to an imminent roof fall, Identify factors that contribute to unintentionally going inby roof supports, Identify actions that help keep miners away from unsupported roof |
The preshift examination has been completed. The entire section has been rock dusted. John and Eddy advance the miner to the face of the #3 entry and begin cutting coal. Pete is standing near the right rib watching the mining machine to observe its new water spray system. A shuttle car comes up close to the right rib. After watching the miner cut coal for less than a minute, Pete starts to get worried that he is in danger of being squeezed between the continuous miner and the rib. He steps back around the comer into the right-hand crosscut which is rock dusted. Then he notices that half of the crosscut is unbolted and the top is dribbling small pieces of shale! Pete cannot escape into the #3 entry because the miner tailboom and shuttle car block that route. He sees that the far end of the crosscut is bolted. Pete must decide what to do to escape and to warn Eddy, John, and the shuttle car operator who are inby an unbolted crosscut. After Pete and Eddy escape, John must decide whether to abandon the mining machine and make a run for safety or to stay in the miner operator compartment under the canopy.
Materials needed: | |
Instructor Copy
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Problem Booklet |
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1 for each trainee, may be duplicated from the Instructor's Copy. | |
Answer Sheet |
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1 for each trainee. May be duplicated from the Instructor´s Copy. | |
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