El miembro en tensión mostrado en la figura siguiente contiene agujeros para tornillos de 7/8". ¿para qué paso, s, será el área neta para la sección que pasa por dos agujeros igual a la línea de fractura que atraviesa por los tres agujeros? Dé su respuesta en pulgadas y en centímetros. 2 plg 3 plg 10 plg 3 plg 2 plg

El miembro en tensión mostrado en la figura siguiente contiene agujeros para tornillos de 7/8". ¿para qué paso, s, será el área neta para la sección que pasa por dos agujeros igual a la línea de fractura que atraviesa por los tres agujeros? Dé su respuesta en pulgadas y en centímetros. 2 plg 3 plg 10 plg 3 plg 2 plg

Residential Construction Academy: House Wiring (MindTap Course List)

5th Edition

ISBN:9781337402415

Author:Gregory W Fletcher

Publisher:Gregory W Fletcher

Chapter4: Test And Measurement Instruments Used In Residential Wiring

Section: Chapter Questions

Problem 5RQ: List three important rules to follow in the care and maintenance of meters. (Objective 4-14)

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Prepare a typical bay estimate based on the following information: a. Bay size of 350 feet and a building perimeter of 1,100 feet. b. There are 50 bays in the building. c. Unit prices: • Concrete piles: $950.00 each • Concrete pile caps: $725.00 each • Slab-on-grade: $12.50 per sq. ft. • Structural steel frame: $4.90 per sq. ft. • Roof structure: $10.75 per sq. ft. • Roofing: $8.20 per sq. ft. • Plumbing & HVAC: $9.80 per sq. ft. • Electrical: $6.10 per sq. ft. • Exterior foundations: $100.00 per linear ft. • Exterior walls: 728.00 per linear ft.
Calculate the cost per cubic yard to place concrete using each of the alternatives described. The work in both cases consists of placing 140 cubic yards of concrete in footings. a. Using a crane and bucket at a price of $225 per hour, including an operator, with a crew consisting of 6 laborers, a cement finisher, and a foreman. The concrete will be placed in 7 hours using this setup, and transportation of the crane costs $390. b. Using a concrete pump at a price of $295 per hour, including an operator and a crew consisting of 5 laborers, a cement finisher, and a foreman. With this setup, concrete is placed in 6 hours and transportation of the pump costs $290.
In what order are dimensions entered onto the takeoff?
Two materials, A and B, are to be separated using two unit operations, 1 and 2. The feed has 10 tons/h A and 4 tons/h B. The split (fraction of material rejected by each operation) is given in Table P5-14. a. Which sequence of operations, (l?2) or (2?1), will yield the greatest recovery of material A? b. What will be the purity of material A using that sequence? c. What will be the efficiency of separation for the entire process train with regard to material A using the Worrell-Stesed equation?
Redo Problem 12.30 assuming that the water table coincides with the top of the fill and that sat(fill) = 19.8 kN/m3. If the other quantities remain the same, what would be the downward drag force on the pile? Assume ' = 0.5fill. 12.30 Figure 12.49a shows a pile. Let L = 15 m, D (pile diameter) 305 mm, Hf = 3 m, fill = 17.5 kN/m3, and fill = 25°. Determine the total downward drag force on the pile. Assume that the fill is located above the water table and that = 0.5fill.