Nate Core Practice Test 2026 - Free Practice Questions and Study Guide

Wearing specific personal protective equipment (PPE) is crucial when working with refrigerants because these substances can pose significant health risks. Refrigerants can be harmful if inhaled or if they come into contact with skin. Specific PPE, such as gloves, goggles, and respirators, helps to protect technicians from potential exposure to toxic or asphyxiating fumes, as well as preventing cold burns from contact with supercooled refrigerants. This precaution is essential in ensuring the safety and well-being of workers while handling chemicals that can have serious health implications.

The other choices, while relevant in different contexts, do not address the immediate safety risks associated with refrigerant handling to the same extent. For example, while using the correct oil for lubrication is important for equipment longevity, it is not directly related to personal safety. Ensuring the system is older than 10 years does not have a direct impact on safety regarding refrigerant handling and may even lead to compliance issues with newer regulations. Using a general-purpose wrench, while useful for mechanical tasks, does not provide any protective measures against the hazards associated with refrigerants.