Final check — Respiratory Protection

Answer the 10 questions. You need 80% or more to pass. You can retry as many times as you like.

Question 1In the hierarchy of controls, where does a respirator sit?It is the first and best controlIt is the last line of defense (PPE)Above engineering controlsIt replaces ventilation

Question 2Which respirator must be used in an oxygen-deficient or IDLH atmosphere?An N95 filtering facepieceA half-mask with P100 filtersAny air-purifying respiratorA supplied-air or SCBA respirator

Question 3What is the Assigned Protection Factor (APF) of a half-mask air-purifying respirator?1050100010000

Question 4A substance has a PEL of 2 mg/m³. Using the MUC formula with a full-face APR (APF 50), the maximum use concentration is:25 mg/m³52 mg/m³100 mg/m³2 mg/m³

Question 5Under OSHA 1910.134, what must happen BEFORE a worker is fit tested or first uses a respirator?A medical evaluationA hearing testNothing — just put it onA driving check

Question 6How often must a fit test be repeated for a tight-fitting respirator?Once in a lifetimeEvery five yearsAt least annuallyOnly after an incident

Question 7A user seal check should be performed:Once a year by a technicianBy the wearer every time the respirator is put onOnly the first dayNever — the fit test covers it

Question 8Why does facial hair on the seal line disqualify a tight-fitting respirator?It is uncomfortable onlyIt breaks the face-to-mask seal and lets contaminated air leak inIt blocks the exhale valveIt changes the APF rating

Question 9For gases with poor warning properties, how should an employer decide when to change cartridges?Wait until workers can smell or taste the contaminantUse an ESLI or a documented change-out scheduleChange them once a year onlyNever — cartridges last indefinitely

Question 10A written respiratory protection program under 1910.134(c) must:Have worksite-specific procedures and a named program administratorOnly exist for SCBA usersBe a verbal agreement onlyBe reviewed once every ten years

Final check — Respiratory Protection

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