OSHA specifies a short-term slope of 1:2H:1V for excavations in type A soil up to what depth?

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Multiple Choice

OSHA specifies a short-term slope of 1:2H:1V for excavations in type A soil up to what depth?

Explanation:
OSHA uses soil type and depth to determine how steep an excavation can be temporarily opened without a full protective system. Type A soil is the most stable cohesive soil, so a short-term slope can be somewhat steeper for quick tasks, but only within a depth limit. The notation 1:2H:1V describes a slope where for every vertical foot you have two horizontal feet—roughly a 27-degree incline. This specific short-term slope is allowed up to a depth of twelve feet. If the excavation goes deeper than that, a protective system (shoring, shielding, or a different slope) must be used according to OSHA requirements.

OSHA uses soil type and depth to determine how steep an excavation can be temporarily opened without a full protective system. Type A soil is the most stable cohesive soil, so a short-term slope can be somewhat steeper for quick tasks, but only within a depth limit. The notation 1:2H:1V describes a slope where for every vertical foot you have two horizontal feet—roughly a 27-degree incline. This specific short-term slope is allowed up to a depth of twelve feet. If the excavation goes deeper than that, a protective system (shoring, shielding, or a different slope) must be used according to OSHA requirements.

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