1. The cutting position shall be indicated by (90 dotted line) on the stair plan.

2. Symbols (including arrows and slashes) used to mark the start and end of the size on the pattern.

3. The dimension values marked on the drawing should be real objects (actual dimensions), which have nothing to do with drawing scale and drawing accuracy.

4. Draw the dividing line (thick solid line) between the outline and the outline and the outline part in the local outline.

5. Generally, the section plane of the building plan should be selected (through the position of the door and window openings).

6. For the cross-sectional view of parts with unclear materials, the legend should be drawn as (45 thin solid lines with equal spacing in the same direction).

7. In the structural plan, the component code TL indicates (stair beam).

8. The rectangular coordinates (x, y, z) of a point respectively represent the distance from the space point to the projection plane (v, h, WB).

9. There are (4) types of contours, namely (full contour, half contour, partial contour and stepped contour).

10. In the reinforced concrete structural drawing, the symbol "Ф" indicates (HRB335) grade steel bars.

1 1. In the structural construction drawing, dimension line or marked leader lines are generally represented by (thin solid lines).

12. Move out of the profile (thin solid line).

13. Housing engineering drawings generally include (building construction drawings, structure construction drawings and equipment construction drawings) according to different specialties.

14. When the drawing format with binding is adopted, the binding size is (25) regardless of the drawing size. A. 15。 In the stair section, the structure of thick solid line should be drawn as (cut to the stair section).

Second, the judgment question

1. The labels of the whole paragraph and the half paragraph are exactly the same. B. correct

2. The shapes of three orthogonal projections of a sphere are circles with equal diameters. B. correct

3. When drawing the three-sided diagram of the assembly, any direction can be taken as the front direction. B. correct

4. "Flat method" is the abbreviation of plane whole representation, and the representation before flat method is called traditional representation. B. correct

5. In the semi-section view, the boundary between the section view and the section view must be drawn with a dotted line. A. mistakes