Question

12. A slab on grade measures 120 long x 60" wide x 2' 6" thick. What is the cost to form the slab if formwork costs S1 per square foot of contact area? A. $72 B.S90 C.S162 D.S180 13. A place concrete' activity requires the placement of 2,080 cubic yards. If the individual production rate is 2 cubic yards per workhour per person, with a 10-person crew and 8-hour workday, how many days are needed to complete this activity? A. 13 B. 26 C. 104 D. 130 14. A 2x4 costs $0.45 per board foot (bf). A 2x4 stud wall has a 6.2 bf per lincal foot of wall in place. Each section is 10' long. A total of five sections are to be built. What is the total cost of the lumber rounded to the nearest dollar? A. $129 B. S140 C. $180 D. $310 15. Steel costs are presently $1,000 per ton. A project is bid that has 25 pieces of W10 x 30 beams. Each beam is 20 feet long. What is the approximate cost for the 25 beams? A. $2,500 B. $5,000 C.$7,500 D. $15,000 16. What is the approximate combined weight of one W12x26-15'0" long and one C9 x 15.5- 10'0" long? A. 180 pounds B. 335 pounds C. 390 pounds D. 545 pounds Which of the following pieces of wood is equal to one board foot (BF)? A. 1" x 12" x 2 B. 2" x 12" x 1 C. 2" x 6" x 1 D. 2" x4"x 1 17. 18. A freestanding concrete wall is 10' high by 224' long and requires formwork. The production rate for the forming crew is 0.162 workhours per square foot of contact area. What are the total workhours needed to complete the formwork for the freestanding concrete wall? A. 363 B. 726 C. 13,828 D. 27,654 19. What is a schedule of values'? A. List of construction activities B. breakdown of the contract amount into pay items C. list of ethical practices in which employees may participate D. Table showing average wage rates for each crew 20. In the following diagram, what is the required approximate total board feet of lumber required for the structure illustrated? 8r-0 2 x 4 (TYP A. 11 B.20 C.30 C. 240

Answer 1

W 12x 26 XIS.S : 2Gx1S-39o 1bs otal390 155 545 pounds