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C-21 Building Moving & Demolition Practice Questions - California CSLB C-21 Building Moving and Demolition Examination Exam

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About this Exam

Prepare with the C-21 Building Moving & Demolition Practice Questions - California CSLB C-21 Building Moving and Demolition Examination Exam practice quiz. This question bank includes 100 questions covering demolition, total, feet, building, and structural. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

Sample Questions

Question 1
A demolition contractor needs to estimate the weight of a 30-foot by 40-foot by 6-inch solid reinforced concrete slab (150 lbs/cu ft). What is the total structural weight of the slab in short tons?
45.0 short tons
60.0 short tons
75.0 short tons
90.0 short tons
Question 2
A C-21 contractor estimates the removal of 200 cubic yards of solid brick masonry. If the bulking (swell) factor for broken masonry debris is 45%, what is the total loose volume to be hauled?
245 cubic yards
290 cubic yards
335 cubic yards
380 cubic yards
Question 3
A site clearance project yields 600 loose cubic yards of mixed demolition debris. If standard 10-wheeler dump trucks carry 12 loose cubic yards per trip, how many total truck loads are required?
35 total truck loads
42 total truck loads
50 total truck loads
65 total truck loads
Question 4
A single-story 2,400-square-foot wood-framed residence with stucco exterior has an estimated dead load of 45 pounds per square foot. What is the total structural weight of the building?
72,000 pounds (36 tons) only
84,000 pounds (42 tons)
96,000 pounds (48 tons)
108,000 pounds (54 tons)
Question 5
A commercial demolition project contains 120 tons of structural steel beams. If scrap metal buyers offer $220 per ton and processing labor costs $45 per ton, what is the net salvage credit?
$$21,000 net salvage credit
$$24,500 net salvage credit
$$26,400 net salvage credit
$$31,800 net salvage credit

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C-21 Building Moving & Demolition Practice Questions - California CSLB C-21 Building Moving and Demolition Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on demolition, total, feet, building, and structural. 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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Frequently Asked Questions

This quiz contains a total of 100 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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