Read the text: 'The Kiruna iron ore mine adopted autonomous electric haulage trucks operated remotely from an engineering center 400 metres above the active stopes, reducing human exposure to seismic hazards.' What was a principal safety advantage of this setup?
Answer and explanation
Correct answer: A. Decreased worker presence in seismically hazardous areas
- Step 1: Remote operation of trucks reduced direct worker presence in deep, seismically active underground zones. Step 2. Match with decreased worker presence in hazardous areas. Answer: Decreased worker presence in seismically hazardous areas. Why not the others: Rock fracturing is not eliminated by vehicle automation; electrical infrastructure is required; excavation continues actively.
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