Review for AIT Exam – Administrator in Training Long-Term Care Administration
Study Guide
Woodworking Techniques and Tools
Understanding Grain Issues in Wood
Raised or lifted grain can occur due to improper moisture content in the wood or the use
of blunt blades.
Moisture Content: High moisture levels can cause the wood fibers to swell, leading to a
rough surface after cutting.
Blunt Blades: Dull blades tear the fibers rather than cutting cleanly, resulting in a raised
grain.
Prevention: Ensuring blades are sharp and wood is properly dried can mitigate these
issues.
Example: A jointer with new knives should be regularly checked for blade sharpness to
maintain a smooth finish.
Illustration:
Case Study: A woodworking shop experienced raised grain issues due to high humidity;
switching to a dehumidifier resolved the problem.
Handsaw Rake Angles
The rake angle of a handsaw significantly affects the smoothness of the cut.
2 Degrees Rake Angle: A 2-degree rake angle is optimal for producing the smoothest
cut, as it allows for a more aggressive cut without tearing the wood fibers.
Comparison: Higher rake angles (e.g., 10 degrees) can lead to rougher cuts, while lower
angles may require more effort.
Application: Choosing the right rake angle is crucial for different types of wood and
desired finishes.
Example: When cutting softwoods, a 2-degree rake angle is often preferred for a clean
finish.
Visual Aid:
Study Guide
Woodworking Techniques and Tools
Understanding Grain Issues in Wood
Raised or lifted grain can occur due to improper moisture content in the wood or the use
of blunt blades.
Moisture Content: High moisture levels can cause the wood fibers to swell, leading to a
rough surface after cutting.
Blunt Blades: Dull blades tear the fibers rather than cutting cleanly, resulting in a raised
grain.
Prevention: Ensuring blades are sharp and wood is properly dried can mitigate these
issues.
Example: A jointer with new knives should be regularly checked for blade sharpness to
maintain a smooth finish.
Illustration:
Case Study: A woodworking shop experienced raised grain issues due to high humidity;
switching to a dehumidifier resolved the problem.
Handsaw Rake Angles
The rake angle of a handsaw significantly affects the smoothness of the cut.
2 Degrees Rake Angle: A 2-degree rake angle is optimal for producing the smoothest
cut, as it allows for a more aggressive cut without tearing the wood fibers.
Comparison: Higher rake angles (e.g., 10 degrees) can lead to rougher cuts, while lower
angles may require more effort.
Application: Choosing the right rake angle is crucial for different types of wood and
desired finishes.
Example: When cutting softwoods, a 2-degree rake angle is often preferred for a clean
finish.
Visual Aid:
