Symbols (Leaving Cert DCG): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
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Practise the cards
10 cards from this deck
What are symbols in technical drawing?
What are symbols in technical drawing?
Standardised marks, lines & shapes
Purpose of symbols in drawings
Purpose of symbols in drawings
Save space & time
Essential requirement for good linework
Essential requirement for good linework
Consistent line tone & thickness
Use of thick continuous lines
Use of thick continuous lines
Visible outlines and edges
What short dashes indicate
What short dashes indicate
Hidden outlines and edges
What chain lines represent
What chain lines represent
Centre lines
What wavy continuous lines show
What wavy continuous lines show
Limits of partial views or sections
Projection system common in Europe
Projection system common in Europe
First-angle projection
Projection system used in North America
Projection system used in North America
Third-angle projection
Where projection symbol is shown
Where projection symbol is shown
In the title block