Millwright Level 1 Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Millwright Level 1 Exam with comprehensive resources. Engage with quizzes and diverse study materials focusing on essential skills required in the millwright profession. Get ready to ace your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What tool is used to cut an O-ring groove?

End mill
Form tool
Lathe bit
Ball nose cutter

The correct answer is: Form tool

The use of a form tool is key for cutting an O-ring groove because it is specifically designed to create complex profiles and shapes within a workpiece. Form tools are custom-shaped cutting tools that can achieve the precise geometry needed for the O-ring groove without generating excessive tool wear or requiring multiple passes. This capability allows for the accurate reproduction of the groove’s cross-sectional shape, which is essential for ensuring a proper seal when the O-ring is installed. The design and shape of the form tool can be tailored to fit the required dimensions of the groove, making it the most suitable option for this type of machining task. In contrast, the other tools mentioned may not be designed for such specific applications, potentially leading to inaccurate grooves or surface finishes that do not meet the required standards.