Performing a visual inspection is the first step listed on the Diagnostic SOP Checklist provided in this course.

• A. True
• B. False
• C. Not specified
• D. Always required

Answer: (A)

Starting with a visual inspection is essential because it lets you quickly spot obvious faults, safety hazards, and conditions that could affect any further testing. In this course’s Diagnostic SOP Checklist, the first item is to perform a visual inspection, which sets a baseline understanding of the system’s condition before you apply tools or run tests. This initial scan helps you identify obvious damage, wear, leaks, loose connections, or missing components and ensures you’re working safely. If you see something notable, you can adjust your diagnostic plan accordingly and avoid chasing symptoms that aren’t real or creating additional risk. The other options don’t fit because the checklist explicitly starts with a visual inspection, not with something later or something that isn’t specified, and it isn’t framed as an absolute, always-required rule for every situation.