What are non-engineered equipment?

Non-engineered equipment refers to items that are designed without formal engineering oversight or review. This means that the design process does not involve rigorous engineering principles or scrutiny. The correct answer highlights that such equipment could be designed and fabricated by suppliers, which typically implies that it is produced with less formal structure and may not adhere to strict engineering standards.

Options indicating extensive engineering involvement or customization suggest a higher level of oversight, which contrasts with the essence of what non-engineered equipment entails. Non-engineered equipment is often simpler in design and is typically mass-produced or standard equipment that does not require specialized engineering input for its fabrication.