II. TRUE OR FALSE
Direction: Read the following statement carefully. Write “True” if the statement is correct and
“False” if it is incorrect. Write your answers in the space provided before the number.
1. Orthographic Projection is necessary to describe the shape of the object completely in the
least number of views.
2. Object line is also called invisible line.
3. Border line is used to enclose or frame a drawing.
4. The top, rear and right side views are the three regular views because they are the views
most frequently used.
5. Reading a drawing is defined by French as the “process of recognizing and applying the
principles of orthographic projection to interpret the shape of an object from the orthographic views."
6. Dimensions and extension lines must always be placed so as not to coincide with the other
lines.
7. When a center line and cutting-plane lines coincide on a drawing, the one that is more
important for readability of the drawing takes precedence over the other.
8. Break lines are placed so that they spoil the readability of the over-all view.
9. Hidden or invisible lines take precedence over the object line although the center line
maybe extended 1/4" outside the view.
10. A full line or object line should cover an invisible line but an invisible line could not
cover a visible line.