Safety

Questions

• Electrical panels must remain accessible at all times. The minimum clearance in …
• Under EPA Section 608, technicians who purchase refrigerants in containers large…
• Refrigerant cylinders must never be heated with an open flame because:
• When working in an attic during summer in California, heat illness prevention re…
• What type of respirator is required when working in spaces with oxygen-deficient…
• Hydrofluoric acid can be formed when HFC refrigerants are exposed to:
• What is the OSHA permissible exposure limit (PEL) for carbon monoxide in the wor…
• A refrigerant recovery machine must be used before opening any refrigerant circu…
• Refrigerant cylinders must be stored:
• When working with R-410A refrigerant, which PPE must be worn?
• When handling liquid R-410A from a cylinder, the risk of freeze burns is because…
• The Global Warming Potential (GWP) of a refrigerant is a concern for California …
• When using a brazing torch near combustible materials, which precaution is requi…
• Before entering a confined space such as a mechanical room or crawl space, a tec…
• California requires all HVAC contractors to carry workers' compensation insuranc…
• Proper electrical safety when working on HVAC equipment requires testing for vol…
• Per Cal/OSHA, a ladder must extend at least how many feet above the roofline whe…
• Asphyxiation is a hazard when working in confined spaces with high concentration…
• Under CSLB regulations, a C-20 contractor must not perform work that exceeds the…
• Cal/OSHA requires fall protection for workers on roofs at heights of:
• Under California law, releasing refrigerant intentionally into the atmosphere is…
• Cal/OSHA requires that a safety data sheet (SDS) be available for which material…
• A contractor on a job site discovers that an employee has symptoms of heat strok…
• Lockout/tagout (LOTO) procedures are required before:
• Under Cal/OSHA, an employer must provide a written Injury and Illness Prevention…