Oilers/Plant Tenders (HHC) Civil Service Practice Exam

Combustible and flammable cleaning materials should indeed be stored in tightly closed metal containers to minimize the risk of fire and ensure safety in the workplace. Storage in metal containers prevents the release of vapors that can easily ignite and minimizes the likelihood of spills and leaks. Metal containers are designed to withstand high temperatures and prevent the materials inside from reacting with the environment, which is essential for maintaining safety standards. Properly sealing these containers further reduces the risk of contamination or exposure that could lead to dangerous situations, including fire or chemical reactions. While it's important to ensure these materials are stored safely, the assertion that they should never be stored tightly in closed containers lacks a basis in safety protocols and best practices for handling flammable substances. Thus, the correct approach is to always store combustible and flammable cleaning materials in tightly closed metal containers to protect both personnel and property from potential hazards.