Test Questions and Answers 347
- What are break lines?
- Contour lines define the boundaries of a property. True or False?
Answers
- False
- Dimensions for an A1 sheet is 841 mm x 594 mm (33.1 inches x 23.4 inches).
- Object lines, also known as visible lines, are solid lines used mainly to define the shape and size
of a structure or object. - They are used to represent hidden surfaces or intersections of an object. On floor plans they are
also used to represent features that lie above the plane of the drawing, such as high wall cabi-
nets in a kitchen. - True
- Approximately 1/16 inch.
- A chain dimension is when dimensions can be added together to come up with one overall di-
mension. - True
- Break lines are fine straight lines with zig-zag-zig offsets to show a break or termination of a par-
tial view or to omit portions of an object. - False. Contour lines consist of fine lines that are used mainly to delineate variations in a site’s
elevation.
CHAPTER 4 (UNDERSTANDING DIMENSIONS)
Questions
- What does a dimension represent?
- What is a radial dimension?
- Some of the many advantages of the metric system include the elimination of fractions on draw-
ings, simpler calculations, and international uniformity. True or False? - Where is the scale of a drawing usually noted?
- What are the three commonly used drawing scales for reading construction drawings and for the
development of plans? - Drawings produced in metric, such as floor plans, elevations, and sections, are normally drawn
to a scale of 1:50 or 1:100, as opposed to the 1/4 inch = 1 inch, 0 inches or 1/8 inch = 1 foot,
0 inches scale used in the imperial system. True or False? - What are the two methods of dimensioning in common use?
- How are angular dimensions used?
- What are reference dimensions used for?
- What does GDT stand for?
Answers
- A dimension represents a numerical value expressed in an appropriate unit of measure.
- Radial dimensions are used for measuring the radius of arcs, circles, and ellipses and display-
ing it with a leader line.