Excavated soil is being placed along a trench edge while pipe bedding is installed below. What minimum setback or equivalent protection does OSHA require for spoil piles?
Correct Answer
D) Spoils must be kept at least 2 ft from the excavation edge or restrained from falling in
OSHA 1926.651(j)(2) requires employees to be protected from excavated or other materials by placing and keeping them at least 2 ft from the edge of excavations, or by retaining devices sufficient to prevent materials from falling or rolling into excavations. Other choices put surcharge and falling material too close to the trench.
Why This Is the Correct Answer
OSHA 1926.651(j)(2) requires employees to be protected from excavated or other materials by placing and keeping them at least 2 ft from the edge of excavations, or by retaining devices sufficient to prevent materials from falling or rolling into excavations. Other choices put surcharge and falling material too close to the trench.
Why the Other Options Are Wrong
Option A: Spoils may be right at the edge if the trench is under 6 ft
Choice A (Spoils may be right at the edge if the trench is under 6 ft) is rejected because Spoils may be right at the edge if the trench is under 6 ft uses the wrong excavation protective-system trigger or exception.
Option B: Spoils need only be kept behind warning tape
In site construction, Spoils need only be kept behind warning tape is the wrong selection for Spoil placement: it tries to bypass the Spoil placement checkpoint.
Option C: Spoils must be at least 6 ft from the trench edge
The trap in C is Spoils must be at least 6 ft from the trench edge. That selection is wrong because Spoils must be at least 6 ft from the trench edge uses the wrong excavation protective-system trigger or exception.
Memory Technique
Treat spoil placement like a labeled shelf; only the matching condition belongs with Spoils must be kept at least 2 ft from the excavation edge or restrained from falling in.
Reference Hint
Open 29 CFR Part 1926, Subpart P - Excavations; use 29 CFR 1926.651(j)(2) to confirm that OSHA 1926.651(j)(2) requires employees to be protected from excavated or other materials by placing and keeping them at least 2 ft from the edge of excavations, or by retaining devices sufficient to prevent materials...
More NASCLA Questions
Bid instructions require bid security with each sealed bid. Which purpose should the estimator associate with that requirement?
A wood deck surface has 320 sf of coverage. Boards have a 5-1/2 in. actual face width, and the order includes an 8 percent cutting allowance. What linear footage is closest?
Using the dimensions shown for the stabilized construction entrance, what is the plan area?
A reroof area requires 14,720 sf of rigid insulation. Boards are 4 ft by 8 ft, and the order includes 5 percent waste. How many boards are needed?
Two addenda revise the drawings before bid day. What must a responsive bidder normally do with those addenda?
A utility trench is 180 ft long, 3 ft wide, and 7 ft deep with vertical sides inside a trench shield. What excavation volume is required?
A 120 ft long Type C trench is cut with a 4 ft bottom width and a 6 ft depth. If side slopes are 1-1/2 horizontal to 1 vertical, what excavation volume is closest?
A storm pipe run needs 240 ft of bedding, 4 ft wide and 6 in. thick. Including a 10 percent ordering allowance, how many cubic yards of bedding aggregate are needed?
A mass excavation produces 1,180 loose cubic yards of material for off-site disposal. End-dump trucks can haul 18 loose cubic yards per trip. What truck count is required?
An asphalt-shingle roof has a slope of 3:12. Under the IBC low-slope asphalt-shingle provisions, what underlayment arrangement is required?
People Also Study
Business & Financial Management
120 questions · 70% to pass
Contract Administration
60 questions · 70% to pass
Project Management
60 questions · 70% to pass