NCCER Millwright Practice Exam

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Study for the NCCER Millwright Exam. Empower your knowledge with quizzes that enhance understanding, and multiple-choice questions that provide hints and explanations. Get fully prepared and ace your exam!

Practice this question and more.

Some pre-cut shims are made with ______ for easy installation and removal

Plastic
Wood
Metal
Rubber

The correct answer is: Plastic

Pre-cut shims are often made with plastic to facilitate easy installation and removal. The properties of plastic make it a suitable material for shims because it can be designed to have precise dimensions, allowing for accurate leveling and spacing in various applications. Additionally, plastic shims are lightweight, resistant to moisture, and less likely to deform or compress when subjected to load compared to materials like wood, which can absorb moisture and change shape. Plastic also has a smooth surface that allows for easy insertion and removal, contributing to efficient adjustments during installation or maintenance work.