Intro to Millwright Practice Exam

What must crew members record when using and returning isolation locks?

1. Safety Log

2. Operation Log

3. Isolation Log

4. Equipment Log

The correct answer is: Isolation Log

When crew members use and return isolation locks, they must complete an Isolation Log. This documentation is crucial for ensuring that proper procedures are followed when isolating equipment for maintenance or repair. The Isolation Log serves to track which locks have been applied to specific machinery, who applied them, the time and date of application, and when they were removed. This process not only enhances safety by preventing accidental energization or start-up of equipment while maintenance is being performed but also provides an official record that can be referred back to in case of an incident or audit. Accurate logging also helps maintain accountability among crew members and assures that all safety protocols have been adhered to during the isolation process.