Safety and Jobsite Practices
What the Safety domain tests
Safety items cover PPE, material handling, lift assists, knife and tool safety, ladders and stilts, dust control, and housekeeping. The correct answer is almost always the one that removes the hazard at its source rather than working around it.
Core rules
- Eye protection whenever cutting or driving fasteners; hearing protection around screw guns and saws; approved respiratory protection when sanding; gloves and safety-toe boots for handling board.
- 5/8 in. board is heavy. A 4 × 12 sheet at about 2.2 lb/ft² weighs roughly 105 lb and is awkward beyond its weight. Use two people or a mechanical panel lift; never lift a full sheet overhead alone.
- Knife work: fresh blade, cut away from the body, retract the blade when set down, score only as deep as needed.
- Fall protection is required at 6 ft in construction. Stilts only on level, clean floors within the manufacturer's height limits, by trained workers.
- Control dust with vacuum-attached sanders, wet sanding, or negative air; joint compound dust can contain crystalline silica.
- Store board flat and off the floor, and keep stacks from overloading the floor or blocking egress.
Worked example
You need to hang a ceiling with 4 × 12 sheets of 5/8 in. Type X. The sheet is 48 ft² at about 2.2 lb/ft², or roughly 105 lb, and it must be held overhead while fasteners are driven. Two workers holding it still leaves no hands free for the screw gun, and walking it up a ladder is both a strain and a fall hazard. The correct call is a mechanical panel lift; for wall work, two workers plus a deadman T-brace. Choosing to muscle it up is the answer the exam marks wrong.
Traps that cost marks
- Treating a dust mask as protection against solvent vapors from adhesives.
- Pulling a knife toward the body to save a step.
- Leaving cords and offcuts across walk paths.
- Using stilts beside a floor opening, stairwell, or a floor with a raised threshold.