Msha Test 1 | 44 Questions And Answers 100% Correct

3. Roof, floor, ribs (underground) {Ans: 1. Proper pillar sizing 2. Proper roof support 3. Scaling ribs for loose material}Managers' Role in Health Protection {Ans: 1. health hazards- understand and recognize them 2. Engineering control in place? -are they working properly? *checklist, schedule maintenance, inspection schedule 3. Have miner's wear PPE 4. Correct miners when they are performing actions that may have adverse health effects 5. Set an example by wearing PPE *Top-down support- involvement and commitment}Impoundments- Review data needed for an annual report (7 things) {Ans: (1) Changes in the geometry of the impounding structure for the reporting period. (2) Location and type of installed instruments and the maximum and minimum recorded readings of each instrument for the reporting period. (3) The minimum, maximum, and present depth and elevation of the impounded water, sediment, or slurry for the reporting period. (4) Storage capacity of the impounding structure. (5) The volume of the impounded water, sediment, or slurry at the end of the reporting period. (6) Any other change which may have affected the stability or operation of the impounding structure that has occurred during the reporting period. (7) A certification by a registered professional engineer that