ASP Construction Safety and Fall Protection Flashcards
6 cards from real ASP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 ASP Construction Safety and Fall Protection flashcards as text
Under OSHA 29 CFR 1926.652, what minimum trench depth requires a protective system such as sloping, shoring, or shielding?
Answer: 5 feet
OSHA requires a protective system for trenches 5 feet or deeper unless the excavation is entirely in stable rock.
What maximum slope ratio does OSHA require for a Type C soil excavation to prevent cave-in?
Answer: 1½:1 (34°)
Type C soil, the least stable classification, requires a maximum slope of 1½H:1V (approximately 34°) for safe open-cut excavation.
What is the minimum distance excavated spoil (soil) must be kept from the edge of a trench per OSHA standards?
Answer: 2 feet
OSHA requires spoil piles and other materials to be kept at least 2 feet from the edge of an excavation to reduce surcharge loads that can trigger cave-ins.
Under OSHA excavation standards, what is the maximum lateral distance a worker may be from a means of egress inside a trench 4 feet or deeper?
Answer: 25 feet
OSHA requires ladders, steps, or ramps to be placed within 25 lateral feet of any worker in a trench 4 feet or deeper.
Which OSHA soil classification has the highest unconfined compressive strength and is the most stable for excavation?
Answer: Type A
Type A is the most stable soil classification under OSHA, requiring unconfined compressive strength of 1.5 tsf or greater and no fissuring.
Who is required by OSHA to classify soil conditions and evaluate excavation safety at a construction site?
Answer: A competent person
OSHA requires a competent person to classify soil using at least one visual and one manual test before and during excavation work.