Final answer:
Non-skid refers to a material or coating applied to surfaces to prevent slipping. In engineering, this question asks about the proximity of non-skid application to deck fittings and protrusions on a ship or vessel.
Step-by-step explanation:
In engineering, non-skid refers to a material or coating applied to surfaces to provide traction and prevent slipping. In this context, the question is asking how close the non-skid material should be applied to deck fittings and protrusions on a ship or vessel. The answer to this question may vary depending on the specific regulations and standards of the maritime industry. However, as a general guideline, non-skid should typically be applied within approximately a few inches or centimeters of the deck fittings and protrusions to ensure proper grip and safety.