Not quite. The answer is D: 4 feet or more.
29 CFR 1926.651 requires a safe means of egress in trench excavations 4 feet (1.22 meters) or more deep. The 5 feet figure is the protective-system trigger in 1926.652, a common mix-up with the egress trigger. Neither 3 feet nor 6 feet appears in the rule; egress is keyed to 4 feet.
0 of 1 right so far.
Question 2 of 10.
Under Appendix A to OSHA Subpart P, what is the minimum unconfined compressive strength for a cohesive soil to be classified as Type A?
A: 1.0 tsf
B: 2.0 tsf
C: 0.5 tsf (48 kPa)
D: 1.5 tsf (144 kPa)
NEXT: A · B · C · D
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