USPS · Safety and Procedures

Before clearing a jam or performing maintenance on automated equipment, what safety step is most important?

Correct answer

Ensure the equipment is properly stopped and de-energized (locked out) per procedure before reaching into moving-part areas, preventing serious injury

  1. A Work quickly so the machine isn't down long
  2. B Have a coworker watch you do it quickly
  3. C Just be careful while it runs
  4. D Ensure the equipment is properly stopped and de-energized (locked out) per procedure before reaching into moving-part areas, preventing serious injury

Why this is the answer

Lockout/energy control safety: Before clearing jams or doing maintenance involving moving-part areas, the most important step is to ensure the equipment is properly STOPPED and DE-ENERGIZED (locked out) per procedure. Reaching into running equipment — even 'carefully' or with a watcher — risks catastrophic injury (caught/crushed hands or limbs). The 476 VEA strongly emphasizes equipment safety; automated sorting machinery has powerful moving parts. Proper lockout/de-energizing procedures exist precisely to prevent the severe injuries that occur when workers reach into running equipment; following these procedures (never bypassing them for speed) is a critical, heavily weighted safety behavior.

Source: USPS 476 VEA — Safety, Lockout Before Maintenance

Practice more questions

This question is from our USPS Exam Practice Tests practice test. Take the full practice test to test your knowledge across all Safety and Procedures and other topics.

Take the VEA 476 (Mail Processing) practice test →

About this topic: Safety and Procedures

Safety and procedure items for mail processing cover lockout rules, clearing jams, lifting and reporting hazards. The procedural, report-it answer is always the expected one. This is one of 8 VEA 476 (Mail Processing) questions on safety and procedures, each with a full explanation on a single study page.

New to this exam? Our USPS exam guide explains the format, scoring, and how to prepare.

Related questions