PPE & Body Protection
Name the four primary routes of exposure through which hazardous materials can enter a worker's body.
inhalation, skin absorption, ingestion, and injection
The four leading causes of death in the construction industry include electrical hazards, struck-by hazards, caught-in/between hazards, and this.
Falls
Fire extinguishers should always be placed near these locations to keep an escape route open.
Exit doors / avenues of egress
True or False: The three elements needed for a fire to start are fuel, combustible liquid, and oxygen.
False (The three traditional elements are fuel, heat, and oxygen; combustible liquids are just a type of fuel)
Welding, brazing, and cutting operations are collectively referred to by this safety term.
Hot Work
Personal Protective Equipment (PPE) is designed to create a what between the worker and a workplace hazard?
A barrier
If you lean a straight ladder against a 16-foot wall, the base of the ladder must be exactly how many feet away from the wall?
4 feet (Following the 4:1 height-to-base ratio rule)
What is considered the single worst location to store a fire extinguisher due to constant vibration packing the powder?
In a vehicle
Fire requires four elements to burn: heat, fuel, oxygen, and this fourth component.
An uninterrupted chemical reaction (The Fire Tetrahedron)
When performing hot work above openings, cracks, or floor gratings, what must be positioned to protect the lower level from sparks and slag?
Fire blankets
Under OSHA standard 29 CFR 1910.132, which party is financially responsible for providing and replacing required PPE?
The supervisor or department (the employer)
To prevent materials from slipping or falling, interlocking stacked materials is achieved by doing what?
Placing the objects at right angles
Because the dry powder inside can pack down over time, you should perform this maintenance step once a year.
Shake, tap, or fluff the extinguisher
Fire extinguishers do not remove heat or oxygen; they put out fires exclusively by disrupting what?
The chemical reaction
A dedicated fire watch is required if combustible materials are within how many feet of the hot work operation?
35 feet
True or False: PPE eliminates the hazard from the workplace.
False (It only creates a barrier; if the equipment fails, exposure occurs)
Which workplace incidents must be reported to a supervisor?
All injuries, incidents, and accidents
A Class B fire extinguisher is designed to fight fires involving what materials?
Chemicals and flammable/combustible liquids
A standard portable fire extinguisher provides approximately how many total seconds of continuous spray time?
45 seconds
Before starting any hot work, you must obtain a burn permit—also known by this name—from a designated responsible person.
A hot work permit
The term PEL refers to a worker's:
Maximum exposure limit (Permissible Exposure Limit)
Because they conduct electricity, metal ladders should never be used near what?
Electrical equipment
Fire grows at this type of mathematical rate, meaning it increases in size incredibly quickly.
A geometric rate
What does the acronym PASS stand for when operating a fire extinguisher?
Pull, Aim, Squeeze, Sweep
Before any welding can take place on used drums, barrels, or tanks, the spaces must be thoroughly cleaned, ventilated, and what?
Purged