Final answer:
The safety net inspection frequency is a health and safety issue, typically requiring monthly checks and additional inspections if any incidents occur that could impact the safety net's integrity. It relates to workplace health and safety regulations, often governed by law.
Step-by-step explanation:
The question regarding the frequency at which a safety net must be inspected falls under the subject of Health, more specifically workplace health and safety regulations. Inspecting a safety net is critical for ensuring it can serve its purpose of preventing injuries, and such inspections are necessary to maintain safety standards. Although the question does not specify the correct inspection frequency, in professional practice, safety equipment should typically be inspected at least once a month, after any occurrence that may affect the integrity of the safety net, and in some cases, even more frequently depending on the safety regulations of the specific industry and jurisdiction.
While the student's question might also touch on aspects of engineering with respect to safety inspections and accident prevention, the core concern here is health and safety. Employers and safety engineers must adhere to safety regulations which are often mandated by occupational health and safety laws.