REVIEW QUESTION 1
What type of line is used to represent concealed features such as an edge, the intersection of two surfaces, or a
surface limit of an object not visible from a certain viewing angle? (para 1-2,b) (fig 1-2)
REVIEW QUESTION 2
When it is not convenient to draw a dimension line directly between the visible lines of an object, it becomes
necessary to indicate the extent of the dimension lines by extending the visible lines. What type of line is used to
extend the visible lines? (para 1-2,e)(fig 1-2)
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