Manufacturing Skill Standards Council (MSSC) Safety Assessment Practice Test

Line breaking procedures should include de-energizing lines, testing prior to start-up and _____________.

1. Filling oil tanks

2. Adding quick connects

3. Correct color coding

4. All valves are closed and locked out using lockout/tagout procedures

The correct answer is: All valves are closed and locked out using lockout/tagout procedures

Line breaking procedures are crucial for maintaining safety in any manufacturing environment where equipment is interconnected through fluid lines or electrical conduits. The inclusion of de-energizing lines and testing prior to start-up helps ensure that there is no residual energy that could pose a risk. The correct component of these procedures involves ensuring that all valves are closed and locked out using lockout/tagout procedures. This is essential because it prevents any accidental release of hazardous energy or materials during maintenance or repair work. By locking out the equipment, workers are protected from exposure to potentially dangerous situations such as leaks or pressurization that could occur if a valve were mistakenly left open. Incorporating lockout/tagout procedures significantly enhances safety by clearly indicating that a piece of equipment is not to be operated until the lockout is removed, ensuring that all personnel are aware of the status of the machinery. Thus, emphasizing these practices in line breaking procedures is fundamental to accident prevention and maintaining a safe workplace.