Red Seal Plumbing Practice Exam

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What is the main reason for sectioning a work piece?

To reduce its size
To increase its strength
To show hidden features on a complex part clearly
To change its material properties

The correct answer is: To show hidden features on a complex part clearly

One would not section a workpiece for the sole purpose of reducing its size or increasing its strength as there are other methods that can achieve those goals. Sectioning is primarily used to reveal hidden features on a complex part that may not be visible from the outside. Changing the material properties of a workpiece also would not be a main reason for sectioning it, as that can be accomplished through other means such as heat treatment or mechanical shaping.