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EXCAVATION CONTRACTOR PRACTICE
EXAM|QUESTIONS AND ANSWERS WITH
RATIONALE|GRADED A+|100%
CORRECT|2026 UPDATE
Q1. According to OSHA 29 CFR 1926 Subpart P, an
excavation is defined as:
A) Any hole in the ground
B) Any man-made cut, cavity, trench, or depression in the
earth's surface formed by earth removal
C) Only trenches deeper than 4 feet
D) Only utility work
Answer: B
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Rationale: OSHA defines an excavation broadly—any man-
made earth removal. A trench is a specific type of excavation
narrower than its depth.
Q2. A "trench" is defined as an excavation where the depth is
greater than:
A) The length
B) The width (narrow excavation)
C) 10 feet
D) The height
Answer: B
Rationale: A trench is a narrow excavation (width ≤ depth).
Trenches are particularly hazardous due to confined space and
collapse risk.
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Q3. The OSHA excavation standard applies to excavations of
any depth, but protective systems are generally required for
excavations deeper than:
A) 3 feet
B) 5 feet
C) 10 feet
D) 20 feet
Answer: B
Rationale: OSHA 1926.652 requires protective systems (sloping,
shoring, shielding) for excavations 5 feet or deeper unless the
excavation is in stable rock.
Q4. A "Competent Person" under OSHA excavation standards
must have:
A) A college degree
B) Knowledge of soil analysis, protective systems, and the
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authority to stop work
C) 10 years of experience
D) A state license
Answer: B
Rationale: The Competent Person must be capable of identifying
hazards and authorized to take corrective action (including
shutting down the job). Training and experience are required;
specific credentials vary by employer.
Q5. The Competent Person is responsible for inspecting the
excavation:
A) Once per week
B) Daily before each shift and after any event that could
increase hazard (rain, vibration, blasting)
C) Only at project completion
D) Only when OSHA inspects
EXCAVATION CONTRACTOR PRACTICE
EXAM|QUESTIONS AND ANSWERS WITH
RATIONALE|GRADED A+|100%
CORRECT|2026 UPDATE
Q1. According to OSHA 29 CFR 1926 Subpart P, an
excavation is defined as:
A) Any hole in the ground
B) Any man-made cut, cavity, trench, or depression in the
earth's surface formed by earth removal
C) Only trenches deeper than 4 feet
D) Only utility work
Answer: B
,Page 2 of 125
Rationale: OSHA defines an excavation broadly—any man-
made earth removal. A trench is a specific type of excavation
narrower than its depth.
Q2. A "trench" is defined as an excavation where the depth is
greater than:
A) The length
B) The width (narrow excavation)
C) 10 feet
D) The height
Answer: B
Rationale: A trench is a narrow excavation (width ≤ depth).
Trenches are particularly hazardous due to confined space and
collapse risk.
,Page 3 of 125
Q3. The OSHA excavation standard applies to excavations of
any depth, but protective systems are generally required for
excavations deeper than:
A) 3 feet
B) 5 feet
C) 10 feet
D) 20 feet
Answer: B
Rationale: OSHA 1926.652 requires protective systems (sloping,
shoring, shielding) for excavations 5 feet or deeper unless the
excavation is in stable rock.
Q4. A "Competent Person" under OSHA excavation standards
must have:
A) A college degree
B) Knowledge of soil analysis, protective systems, and the
, Page 4 of 125
authority to stop work
C) 10 years of experience
D) A state license
Answer: B
Rationale: The Competent Person must be capable of identifying
hazards and authorized to take corrective action (including
shutting down the job). Training and experience are required;
specific credentials vary by employer.
Q5. The Competent Person is responsible for inspecting the
excavation:
A) Once per week
B) Daily before each shift and after any event that could
increase hazard (rain, vibration, blasting)
C) Only at project completion
D) Only when OSHA inspects
