Technical Drawing for Engineering Communication

A true projection of a sectional view always produces the actual shape of the object.

​Section lining should be parallel with the sides of the object to be section lined.

​A revolved section is the same as a rotated section.

​A removed section is very similar to a rotated section except that it is drawn away from the regular view.

​Hidden lines are usually not used in a section view.

​A removed section is sometimes drawn to a larger scale to illustrate and/or dimension a small feature.

​Half sections are best used when an object is not symmetrical.

Today, it is recommended to use the removed section rather than the revolved section.​

​If a cutting plane line passes lengthwise through the axis of a fastener or shaft, the fastener or shaft is not sectioned.

​If a cutting plane line passes perpendicularly through the axis of a fastener or shaft, the fastener or shaft is not sectioned.

​If there are two parts on the object, each part is sectioned with lines in different directions.

​The primary difference between a full section and an offset section is that the cutting plane is not straight in an offset section.

​In a true projection, a keyway is not shown in the hole.

​When a cutting plane line passes through a hole, it should be sectioned with lines in the opposite direction of the rest of the object.

​In a broken-out section, part of the cutting plane line is drawn freehand.

​The cutting plane is represented by a:

​Arrowheads at the ends of the cutting plane line indicate:

​Which of the following is not true of section lines.

​In a half section, what percentage of the material is sectioned from the object?

​This type of section is used to make a particular feature of an object easier to understand.