OSHA 15-Hr Disaster Site Worker flashcards
OSHA 15-Hr Disaster Site Worker · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Incident Command System
- A standardized on-scene emergency management structure that assigns roles such as Incident Commander, Safety Officer, and Operations Chief so multiple agencies coordinate under one plan.
- Hot Zone
- The exclusion zone where contamination or the highest hazard exists; only workers in appropriate PPE and with a defined task enter this area.
- Warm Zone
- The contamination reduction zone between hot and cold zones where decontamination and PPE removal occur before workers enter clean areas.
- Cold Zone
- The support zone free of contamination where command, medical, and logistics operate; clean workers and equipment remain here.
- Contamination Reduction Corridor
- A controlled path through the warm zone where decontamination steps are performed in sequence to prevent contaminants from leaving the hot zone.
- Permit-Required Confined Space
- A confined space with a hazardous atmosphere, engulfment potential, or configuration that could trap a worker; entry requires a permit and rescue plan.
- Trench Protective System
- Sloping, shoring, or shielding required for trenches five feet deep or more; spoils and equipment stay at least two feet from the edge.
- Lockout/Tagout
- A procedure that isolates hazardous energy sources during service or maintenance and verifies a zero-energy state before work begins.
- Job Hazard Analysis
- A systematic review of task steps that identifies hazards and specifies controls before work starts; it is documented in the site safety plan.
- Assigned Protection Factor
- The level of respiratory protection a respirator class is expected to provide; half-mask APR is 10, full-face APR 50, pressure-demand SAR 1,000.
- Oxygen-Deficient Atmosphere
- An atmosphere with less than 19.5 percent oxygen; air-purifying respirators cannot be used and supplied-air or SCBA is required.
- IDLH
- Immediately Dangerous to Life or Health: an atmosphere that could cause irreversible harm or prevent escape, requiring the highest level of respiratory protection.
- User Seal Check
- A quick positive- and negative-pressure check performed each time a tight-fitting respirator is donned to confirm an adequate seal.
- Fit Testing
- A formal test, required annually and before first use, that verifies a specific respirator model and size seals on a specific worker.
- Qualitative Fit Test
- A pass-or-fail fit test using a taste or irritant agent to detect leakage into a tight-fitting respirator; no instrument reading is produced.
- Quantitative Fit Test
- A fit test that uses an instrument to measure the actual leakage ratio inside the respirator, producing a numeric fit factor.
- Photoionization Detector
- A direct-reading instrument that measures volatile organic compounds in air using ultraviolet light; useful for initial screening on disaster sites.
- Lower Explosive Limit Meter
- A combustible gas meter that reads percent of the lower explosive limit; it warns of fire risk but does not assess toxic exposure.
- Safety Data Sheet
- A sixteen-section document from the chemical manufacturer covering hazards, first aid, exposure controls, and physical properties of a substance.
- GHS Pictogram
- A standard symbol on a chemical label that communicates hazard class, such as flame, skull and crossbones, or health hazard.
- Permissible Exposure Limit
- OSHA's legal limit on workplace air concentration of a substance; NIOSH RELs and ACGIH TLVs are often lower and more protective.
- Silica Dust Control
- Cutting concrete or masonry requires water suppression or local exhaust ventilation plus respiratory protection to limit respirable crystalline silica exposure.
- Carbon Monoxide Hazard
- A colorless, odorless gas from fuel-burning equipment; generators must never run indoors or in enclosed spaces without ventilation and monitoring.
- Asbestos in Debris
- Older building materials can release asbestos fibers when disturbed; suspect materials require assessment, wet methods, and respiratory protection.
- Lead Paint Dust
- Renovation and demolition of older structures can generate lead dust; controls include containment, wet methods, air monitoring, and medical surveillance.
- Hazard Assessment for PPE
- A written employer evaluation of workplace hazards that determines the PPE required and must be certified and used to train workers.
- High-Visibility Apparel
- Clothing meeting ANSI/ISEA 107 worn where vehicles, heavy equipment, or traffic operate so operators can see workers.
- Hearing Protection Threshold
- Hearing protection is required when noise exposure reaches or exceeds 85 dBA as an eight-hour time-weighted average.
- Fall Protection Threshold
- Fall protection is required at four feet in general industry and six feet in construction, using guardrails, nets, or personal fall arrest.
- Heat Stroke
- A medical emergency with hot skin and altered mental status; cool the worker immediately and call 911 rather than giving fluids first.
- Downed Power Line Rule
- Assume all downed lines are energized; stay at least ten feet away from lines up to 50 kV and call the utility.
- Structural Specialist Clearance
- Entry into damaged buildings is prohibited until a qualified structural specialist assesses stability and clears the structure for entry.