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Question 1
A foundation excavation requires removing 500 bank cubic yards (BCY) of dense soil with a measured swell factor of 25%. What is the volume of loose soil (LCY) that must be hauled away by dump trucks?
Correct Answer:
625 LCY
Question 2
A structural fill pad requires 850 compacted cubic yards (CCY) of soil. If the soil experiences a shrinkage factor of 15% when compacted from its bank state, how many bank cubic yards (BCY) of soil must be excavated from the borrow pit?
Correct Answer:
1,000.0 BCY
Question 3
When excavating a deep building foundation in sandy soil below the water table, which dewatering system is most effective for lowering the water table by 15 feet around the perimeter before excavation begins?
Correct Answer:
A pre-bored wellpoint system with header pipes and vacuum pumps
Question 4
What is the typical unconfined angle of repose for dry, clean, loose sand when determining un-shored stock-pile slopes or un-supported excavation slopes?
Correct Answer:
30° to 34°
Question 5
Before excavating spread footings, how should batter boards and string lines be positioned relative to the building corner stakes?
Correct Answer:
Set back 3 to 5 feet outside the excavation line so they remain undisturbed during digging
Question 1
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About this Exam

Prepare with the Arizona ROC A-7 Piers & Foundations Practice Questions - Arizona ROC A-7 Piers and Foundations (Commercial) Examination Exam practice quiz. This question bank includes 100 questions covering soil, foundation, concrete, feet, and standard. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Arizona ROC A-7 Piers & Foundations Practice Questions - Arizona ROC A-7 Piers and Foundations (Commercial) Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on soil, foundation, concrete, feet, and standard. 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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