# HAZWOPER PPE Levels Quiz (Levels A, B, C and D) Free practice quiz · 10 questions Answer every question, then press **Check my answers** to see your score and an explanation for each one. Study first with the guide: [PPE Levels A, B, C and D Explained (EPA and OSHA HAZWOPER)](https://www.hazwoperosha.com/guides/ppe-levels-a-b-c-d/). **1. What makes Level A different from Level B?** - Level A uses an air-purifying respirator - Level A uses a totally encapsulating, vapor-tight suit - Level A has no gloves - Level B uses a supplied-air hood only **Answer: Level A uses a totally encapsulating, vapor-tight suit.** Both use SCBA or supplied air. Level A adds a vapor-tight, fully encapsulating suit. **2. Which level is the minimum recommended for initial entry to a site with unknown hazards?** - Level A - Level B - Level C - Level D **Answer: Level B.** Level B is the minimum recommended for initial site entry until hazards are identified. **3. Level C may be used only when:** - Oxygen is below 19.5% - Concentrations are above IDLH - Contaminants and concentrations are known and APR criteria are met - The chemical is unknown **Answer: Contaminants and concentrations are known and APR criteria are met.** Level C requires known contaminants, oxygen of at least 19.5%, concentrations below IDLH, and APR criteria met. **4. Which respirator is part of Level B?** - N95 filtering facepiece - Half-mask APR - Positive-pressure SCBA - No respirator **Answer: Positive-pressure SCBA.** Level B uses positive-pressure SCBA or supplied air with escape SCBA. **5. Level D protection is appropriate when:** - There is no known atmospheric hazard - Vapors are present at the PEL - Oxygen is deficient - Skin-absorbable chemicals are present **Answer: There is no known atmospheric hazard.** Level D is a work uniform for sites with no atmospheric hazard and only nuisance contamination. **6. Which level is used for an oxygen-deficient atmosphere where skin hazard is low?** - Level A - Level B - Level C - Level D **Answer: Level B.** Oxygen deficiency needs an atmosphere-supplying respirator; with low skin hazard, Level B fits. **7. Air-purifying respirators can be used in atmospheres that are IDLH.** - True - False **Answer: False.** False. Only SCBA or supplied air with escape SCBA is used at or above IDLH. **8. Why is heat stress a major concern in Level A and B?** - The suits are heavy metal - Chemical-protective clothing traps body heat - Respirators cause dehydration - It isn't a concern **Answer: Chemical-protective clothing traps body heat.** Impermeable clothing prevents cooling by evaporation, so work-rest cycles and fluids are needed. **9. What is a PAPR?** - Positive air pressure regulator - Powered air-purifying respirator - Personal air pollution recorder - Protective apron and respirator **Answer: Powered air-purifying respirator.** A powered air-purifying respirator blows filtered air into the facepiece or hood. It is an air-purifying respirator, used in Level C. **10. What can trigger a change in PPE level during work?** - Air monitoring results - The time of day - The day of the week - Nothing; the level is fixed **Answer: Air monitoring results.** Monitoring results, new site data and changes in tasks can raise or lower the level, according to the site plan action levels. ## More free HAZWOPER quizzes - [HAZWOPER 40 Hour Practice Test](https://www.hazwoperosha.com/quizzes/hazwoper-40-hour-practice-test/) · Free quiz · 15 questions - Free HAZWOPER 40 hour practice test with answers and explanations. 15 questions on OSHA 1910.120 training levels, PPE,... - [HAZWOPER 8 Hour Refresher Practice Quiz](https://www.hazwoperosha.com/quizzes/hazwoper-8-hour-refresher-practice-quiz/) · Free quiz · 10 questions - Free HAZWOPER 8 hour refresher practice quiz with answers. 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