Question 1
Per 29 CFR 1926.651, a stairway, ladder, ramp, or other safe means of egress is required in a trench excavation once the trench reaches what minimum depth?
Correct Answer:
4 feet
Question 2
Unless a retaining device is used, excavated spoil and other materials that could roll into a trench must be kept at least how far from the edge of the excavation?
Correct Answer:
2 feet
Question 3
Under 29 CFR 1926 Subpart P, which statement best describes a competent person for excavation work?
Correct Answer:
A person who can identify existing and predictable hazards and who has authority to take prompt corrective measures
Question 4
Per 29 CFR 1926.652, employees in an excavation generally must be protected by a sloping, shoring, or shielding system once the excavation is how deep, unless it is entirely in stable rock?
Correct Answer:
5 feet
Question 5
A cohesive clay has an unconfined compressive strength of 1.8 tsf. The same soil was previously excavated and backfilled. How must it be classified under OSHA Subpart P Appendix A?
Correct Answer:
Type B, because previously disturbed soil cannot be Type A
Question 1
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Prepare with the NV A-15 Sewers and Drains Practice Questions - Nevada A-15 Sewers, Drains and Pipes Contractor Examination Exam practice quiz. This question bank includes 100 questions covering trench, sewer, pipe, feet, and concrete. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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NV A-15 Sewers and Drains Practice Questions - Nevada A-15 Sewers, Drains and Pipes Contractor Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on trench, sewer, pipe, feet, and concrete. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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