Worked Examples (Leaving Cert DCG): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What forms the foundation of all technical drawings in geologic geometry?
What forms the foundation of all technical drawings in geologic geometry?
Accurate grid construction
What happens when measurements deviate from perpendicular in grid construction?
What happens when measurements deviate from perpendicular in grid construction?
Errors compound throughout the system
What is the common working scale used for drawing grids and plotting contour lines?
What is the common working scale used for drawing grids and plotting contour lines?
1:200
At what vertical intervals are contour lines plotted when using a 1:200 scale?
At what vertical intervals are contour lines plotted when using a 1:200 scale?
1-metre intervals
What technique does contour interpolation use to find where contour lines should cross?
What technique does contour interpolation use to find where contour lines should cross?
Proportional division of grid sides
What is the first step in creating a cross-sectional profile from a contour map?
What is the first step in creating a cross-sectional profile from a contour map?
Establish the profile line
What does profile construction transform from contour maps?
What does profile construction transform from contour maps?
2D contours into vertical sections
What must mining operations account for regarding geological formations?
What must mining operations account for regarding geological formations?
Complex 3D nature
What is outcrop identification in mining geometry?
What is outcrop identification in mining geometry?
Points where formations reach surface
What does strata thickness affect in mining operations?
What does strata thickness affect in mining operations?
Mining feasibility