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2.3 SECTIONS

Except of views and sectional views, sections are often used on drawings. A section is the
depiction in a figure, got at a mental section one or a few planes, on in case when on a drawing only
that got in a cutting plane. A section differs from a sectional views that on its represent that directly
gets in a cutting plane only. Sections enter in the complement of sectional drawing, but can exist
and as independent depictions.
Sections, which are not in sectional views, divide into taken away (carried out separately from
a basic image, fig.2.22, a) and imposed (placed on the image of object, fig.2.22, b).

a b
Figure 2.22 – Types of sections

It is necessary to give a preference sections taken away, which can be disposed in a sectional
views between parts of the same depiction.
The contour of the taken away section is drawn continuous by mainlines, and imposed —
continuous thin, thus the contour of basic depiction is not interrupted in the place of location of the
imposed section .
Denotation of sections in general case likes denotation of sectional drawings, I.e. the position
of a cutting plane is represented by lines sections, on which inflict pointers, givings direction of
look and designated the identical uppercases of the Ukrainian alphabet. Inscription on a type «A —
A» (fig. 2.23) execute above a section in this case.

Figure 2.23 – Denotation of sections
For the asymmetrical imposed sections or executed in the break of basic image, section with
pointers a line is drawn, but it is not designated in a letter (fig. 2.24). Imposed symmetric section
and symmetric section, executed in the break of basic image design without causing the line of
section (fig.2.25).

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