Sequential markings on outside of cable jackets help technicians estimate which characteristic?

• A. Length
• B. Color coding
• C. Temperature rating
• D. Flexibility

Answer: (A)

Sequential markings on the outside of cable jackets are there to help you gauge length. Each mark corresponds to a known length, so technicians can quickly tell how much cable has been pulled from a reel, how much remains, or where to cut for a precise install. This makes it easy to manage slack and verify that a run meets the required length. Other properties aren’t indicated by these marks—the color coding comes from jacket color or separate labeling, temperature rating is specified on the jacket or its label, and flexibility depends on the jacket material and construction.