Question

A shackle must be marked with all of the following except?

1) Manufacturer's name
2) Working load limit
3) Date of manufacture
4) Serial number

Answer 1

Shackles are typically marked with the manufacturer's name, working load limit, date of manufacture, and serial number.

Step-by-step explanation:

In the context of shackles, they are typically used in industries such as construction, shipping, and rigging, which fall under the purview of the business sector. The question asks which elements must be marked on a shackle. Although it is important to note that requirements may vary depending on the country and industry, shackles are typically marked with the manufacturer's name, working load limit, date of manufacture, and serial number. Therefore, the correct answer is none of the options listed because all of those elements should be marked on the shackle.