Your project requires coordination between structural steel erection and concrete placement. The steel subcontractor can erect 50 tons per day, and you have 800 tons total. Concrete can be placed 2 days after steel erection begins in each area. If concrete crews need 12 days total, when should concrete operations start to finish simultaneously with steel?
Correct Answer
B) Day 6
Steel duration: 800 ÷ 50 = 16 days. Steel finishes day 16. Concrete needs 12 days and must finish day 16, so concrete starts day 5. With 2-day lag after steel start, concrete can begin day 3, but to finish simultaneously: 16 - 12 + 2 = day 6.
Why This Is the Correct Answer
Steel duration: 800 ÷ 50 = 16 days. Steel finishes day 16. Concrete needs 12 days and must finish day 16, so concrete starts day 5. With 2-day lag after steel start, concrete can begin day 3, but to finish simultaneously: 16 - 12 + 2 = day 6.
More NASCLA Questions
Which AIA document contains the general conditions that govern the rights and responsibilities of all parties in a construction contract?
A construction company has direct labor costs of $85,000, direct materials of $120,000, and overhead costs of $45,000 for a project. What is the total job cost?
What is the primary purpose of job cost accounting in construction?
A construction company has current assets of $350,000 and current liabilities of $280,000. What is the company's working capital?
In CSI MasterFormat, which division covers earthwork and site preparation?
In a mechanical drawing, what does 'CFM' typically measure?
In CSI MasterFormat Division 08, which of the following would typically be included?
On a mechanical plan, what does the symbol 'RTU' typically indicate?
What is the minimum preheat temperature for welding ASTM A992 steel when the ambient temperature is 15°F?
A general contractor's balance sheet shows total assets of $850,000, current liabilities of $320,000, and long-term debt of $180,000. What is the company's equity?
People Also Study
Business & Financial Management
120 questions · 70% to pass
Contract Administration
60 questions · 70% to pass
Project Management
60 questions · 70% to pass
Related Study Resources
Previous Question
Scaffold platforms must be fully planked between the front uprights and the guardrail supports when the distance exceeds:
Next Question
A site requires 2,400 cubic yards of fill material. The borrow pit material has a swell factor of 25%. How many cubic yards must be excavated from the borrow pit?
