Safety, Health & Risk Management Flashcards
7 cards from real CMSP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Safety, Health & Risk Management flashcards as text
Under MSHA Part 48, what is the minimum annual refresher training required for experienced miners?
Answer: 8 hours
30 CFR Part 48 requires that all miners receive a minimum of 8 hours of annual refresher training regardless of their experience level.
Which of the following is an example of an engineering control for managing dust exposure in an underground coal mine?
Answer: Installing a water sprayer system on the continuous miner's cutting head
Water spray systems mounted on cutting equipment suppress dust at the source, an engineering control that reduces dust generation rather than relying on behavior or PPE.
A CMSP candidate is reviewing an incident rate calculation. Which formula correctly computes the OSHA Total Recordable Incident Rate (TRIR)?
Answer: (Number of incidents × 200,000) ÷ Total hours worked
TRIR = (Number of recordable incidents × 200,000) ÷ Total hours worked, where 200,000 represents the base for 100 full-time employees working 50 weeks × 40 hours.
What condition must exist before a miner can exercise the right to refuse work under Section 103(g) of the Mine Act?
Answer: A condition that could reasonably be expected to cause death or serious physical harm
Section 107(a) of the Mine Act allows miners to withdraw from imminent danger areas — conditions where there is a reasonable expectation of death or serious physical harm before the hazard can be eliminated.
Which gas is most commonly associated with asphyxiation hazards in confined spaces and abandoned mine areas due to its colorless, odorless nature and displacement of oxygen?
Answer: Carbon dioxide
Carbon dioxide (CO₂) is heavier than air, colorless, odorless, and displaces oxygen in low-lying areas and enclosed spaces, causing asphyxiation without warning.
In conducting a risk assessment for ground control in an underground mine, which factor most directly influences the choice of roof support system?
Answer: The geomechanical properties of the strata and rock mass rating
Rock Mass Rating (RMR), Q-system values, and geomechanical properties (strength, jointing, groundwater) directly determine the required type and density of roof support.
Which MSHA standard requires mine operators to develop and follow a written emergency response plan (ERP)?
Answer: 30 CFR Part 75.1502
30 CFR Part 75.1502 requires underground coal mine operators to have an approved mine emergency evacuation and firefighting program, including a written emergency response plan.