Final answer:
Synthetic web slings should be inspected before each use and undergo formal inspections at least annually, with the frequency potentially increasing based on service conditions and manufacturers' recommendations.The correct option is b.
Step-by-step explanation:
Synthetic web slings, used in various lifting and rigging applications, should be inspected regularly to ensure they are safe to use. According to industry safety standards, such as those from the Occupational Safety and Health Administration (OSHA) and the American Society of Mechanical Engineers (ASME), a synthetic web sling should be inspected every time before use.
Formal documented inspections should occur at least annually, although this may vary depending on the frequency of use and service conditions. In situations with severe service conditions, such as exposure to chemicals or extreme temperatures, more frequent inspections may be necessary. It is crucial to refer to manufacturers' recommendations and comply with any applicable regulatory requirements regarding the inspection frequency.The correct option is b.