HAZWOPER Module 41 – 50 Quizzes Questions and Answers (100% Correct), Exams of Science education

Download HAZWOPER Module 41 – 50 Quizzes Questions and Answers (100% Correct) and more Exams Science education in PDF only on Docsity! HAZWOPER Module 41 – 50 Quizzes Questions and Answers (100% Correct) One should never enter a permit-requiring confined space without a safety attendant on duty and adequate air testing True If the confined space has contained hazardous substances, it is important for the confined space to be ______ before entry Emptied and purged Air in the confined space should be tested for _____ - Oxygen content, flammability, and toxicity What are the OSHA acceptable limits for oxygen in a confined space? 19.5%-23.5% What must you have prior to entering a confined space? Confined Space Entry Permit Other than a confined space entry permit, what else must you have prior to entry? – Communications Training _____ be provided for all personnel associated with a confined space entry – Must For rescue operations, the rescue line should pass a - 2,000 pound test If the meter reading is still above _____ of the LEL, the confined space must be cleaned before entry is permitted 10% Two factors that can cause an atmosphere to become flammable are _______ - Oxygen and flammable components Define LEL - Lower Explosive Limit _____ devices permit employees to work safely on de-energized equipment without fear that the devices will be accidentally moved Lockout/Tagout Portable electric tools used in a confined space must be protected by a _______ Ground fault circuit interrupter Along with other equipment, a _________ must be worn when making a top entry into a confined space Safety harness ______ is required before entry to ensure the atmosphere is acceptable before an entry permit is issued Ventilation Many fatalities occur because victims do not fully understand the threat of airborne hazards that they cannot ____ See, smell, or feel One of the reasons for confined space injuries and fatalities is _______ Poor planning A good way to begin on learning how to protect yourself is to take a look at some things that have caused ______ Accidents in the past Working in a confined space has its own set of potential work problems such as: All of the above Toxins present two different types of risk: Chemical asphyxiation and irritation When the oxygen content is below _______ it is too low to provide enough oxygen for a working person 19.5% Electrical power that could shock workers for move mechanical equipment must be ______ prior to entry into a confined space Locked or tagged out