The document provides an overview of section views in engineering drawing, explaining their purpose in illustrating hidden parts of an object by visualizing cutting planes. It details various types of section views, including full sections, half sections, offset sections, and broken-out sections, each serving specific visualization needs. Key concepts such as the cutting plane and the significance of viewing internal features are emphasized throughout the material.

1. Course Teacher: Wajeeha
Mahmood
ENGINEERING
DRAWING-I
(CE-107)

2. SECTIONAL VIEWS

3. What is a “Section View” ?
A section view is a view used on a drawing to show an area or
hidden part of an object by cutting away or removing some of
that object.
The cut line is called a “cutting plane”, and can be done in several
ways.
The following slides will help show the several methods or types
of “section views”

4. Visualizing the Cutting Plane
It is very important to Visualize what the part will look like
after it is cut open.
Choosing the type of section and location of the cutting
plane.
Making the cut and drawing the view in the proper
location.

5. Types of Section Views
Full sections
Half sections
Offset sections
Broken-out sections

6. Full Section
In a full section, the cutting plane line passes fully through the part.
Normally a view is replaced with the full section view.
The section-lined areas are those portions that have been in actual
contact with the cutting-plane.

7. Half Section
Half Section is used mainly for symmetric objects.

8. Offset Section
Offset sections are used to show interior features that do not lie along a straight line.

9. Broken Out Sections
A broken-out section view is created by breaking off part of the object to reveal interior features

10. FEW EXAMPLES OF SECTIONS