Open Cast Mining (Leaving Cert Engineering): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is open cast mining used for?
What is open cast mining used for?
Extracting ores near Earth's surface
What does the term 'overburden' refer to?
What does the term 'overburden' refer to?
Unwanted material above the ore
Which equipment is described as some of the largest land vehicles ever built?
Which equipment is described as some of the largest land vehicles ever built?
Bucket-wheel excavators
What is a key safety function of terraced benches in open cast mines?
What is a key safety function of terraced benches in open cast mines?
Preventing landslides
Why are mining trucks often painted in bright colours?
Why are mining trucks often painted in bright colours?
For safety
What is the first step in the open cast mining process?
What is the first step in the open cast mining process?
Removing topsoil and vegetation
Why is topsoil stored separately during the extraction process?
Why is topsoil stored separately during the extraction process?
For later land reclamation efforts
Why is open cast mining considered cost-effective?
Why is open cast mining considered cost-effective?
Ores near surface are easy to locate
What major environmental impact can open cast mining cause?
What major environmental impact can open cast mining cause?
Permanently destroy entire landscapes
What are haul roads used for in open cast mines?
What are haul roads used for in open cast mines?
Transporting extracted ore and waste
What happens to the original landscape after land reclamation?
What happens to the original landscape after land reclamation?
It can never be fully recreated
Besides accessibility, what else do terraced benches allow?
Besides accessibility, what else do terraced benches allow?
Extraction at multiple depths together