A utility trench is 4 ft deep. How close must a ladder or other safe egress generally be?
Correct Answer
B) 25 ft or less
OSHA requires safe egress within 25 ft of lateral travel in trench excavations 4 ft or deeper.
Why This Is the Correct Answer
OSHA requires safe egress within 25 ft of lateral travel in trench excavations 4 ft or deeper.
Why the Other Options Are Wrong
Option A: Apply 10 ft to the trench ladder spacing condition
Choice A (10 ft) is rejected because 10 ft is not the OSHA trench-egress travel distance or access trigger cited here.
Option C: Apply 50 ft to the trench ladder spacing condition
The trap in C is 50 ft. That selection is wrong because 50 ft is not the OSHA trench-egress travel distance or access trigger cited here.
Option D: Apply 100 ft to the trench ladder spacing condition
Choice D gives 100 ft. Its specific error: 100 ft is not the OSHA trench-egress travel distance or access trigger cited here.
Memory Technique
Use a redline memory cue for trench ladder spacing: the stem's condition unlocks 25 ft or less.
Reference Hint
Open 29 CFR Part 1926 (OSHA Construction Standards), 1926-2023 / PSI OSHA Excerpts 2025; use 29 CFR 1926 Subpart P - §1926.651(c)(2); ladders by §1926.1053 to confirm that OSHA requires safe egress within 25 ft of lateral travel in trench excavations 4 ft or deeper.
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
Related Study Resources
Previous Question
A crew is about to use a new solvent adhesive, but the safety data sheet is not available on site and workers have not been briefed on the hazards. What should happen first?
Next Question
A site recorded 12 near misses over 60,000 labor-hours. Using a 200,000-hour base, what near-miss rate is reported?
