Intro to Millwright Practice Exam

What type of laser is used in laser alignment tools?

1. Class A laser

2. Class B laser

3. Class C laser

4. Class D laser

The correct answer is: Class B laser

Laser alignment tools commonly use Class B lasers. These lasers are designed for applications where precise measurements are necessary, such as ensuring the alignment of rotating equipment. Class B lasers typically operate at lower power levels, making them safe for use in industrial settings while providing the required accuracy for alignment tasks. Class B lasers are suitable for tasks that require visibility and precision without posing significant risks to users. They are widely used because they can emit beams that are easily seen under normal lighting conditions, allowing millwrights and technicians to make quick and accurate adjustments to machinery. In contrast, the other classes of lasers either operate at higher power levels, which may not be suitable for the detailed alignment work, or are designed for other specific applications that don’t align with the typical needs of millwrights. Understanding the specifications and safety classifications of lasers helps ensure that the right tool is selected for the job, allowing for both efficiency and safety in maintenance and installation processes.