The maximum interval between embossed identification numbers on chain links is no greater than how many feet?

• A. 5'
• B. 7'
• C. 10'
• D. 3'

Answer: (D)

Identifying marks on chain links are placed so you can read the chain’s size, grade, and manufacturer along its entire length. Keeping these embossed numbers within short, regular intervals ensures you can quickly verify the chain’s specifications during handling and inspection, no matter where you are on the chain. The standard requires spacing not to exceed three feet, so you’ll reliably see the information even on long lengths. If the marks were farther apart, you could lose track of the chain’s rating or history in the middle, which could lead to using a chain that’s not appropriate for the load or has wear issues. The other options would allow gaps where critical identification could be missed, which is why three feet is the correct spacing.