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Question 1. What is the difference between labor cost and labor pro-ductivity? Use a sketch to illustrate.
Question 2. The partition wall shown below is to be constructed of 8 × 16 × 6 block. Estimate the cost of the wall to include labor, materials, and contractor O&P using the R. S. Means building cost data or other appropriate estimating reference. The job is located in Cincinnati, Ohio.
Question 3. Given the bridge abutment shown here, determine the number of man-hours required to form the structure using data from R. S. Means or other appropriate reference.
A contractor has installed a silt fence around an area that is semi-circular and level to prevent soil from the construction site entering nearby streams. The diameter of the semi-circle is 1000 feet.
assume the readings on thermometers are normally distibuted with a mean of 0C and a standard feviation of 1.00C. Find the probability that a radndomly selected thermometer reads greater than 1.23 and draw a sketch of the region.
When a particle falls through the air, its initial acceleration a=g diminishes until it is zero, and thereafter it falls at a constant or terminal velocity v_f . If this variation of the acceleration can be expressed as a=(g/v^2_f)(v^2_f-v^2)
The pressure at the end of the bend is 78 pounds per square inch. Determine the horizontal components of the forces necessary to hold the bend in place.
The beam over a 3ft wide outside door is to be concrete to support the brickwork above the door. The moment has been calculated to be 4005in-Ibs and the beam is 4 inches wide and 6 inches overall height.
A pile resists the tension developed by three stay cables for a major tent (Membrane) Structure. Assuming no bending is desired in the pile (no resultant horizontal component), what is the magnitude of the force S if the angle \thetaS = 30 degrees
A compressible 12-ft clay layer beneath a building is overlain by a stratum of sand and gravel and underlain by impermeable bedrock. The total expected primary consolidation settlement of the compressible clay layer due to the building load is 4.6..
It's proposed to have a water heater that consists of an insulated pipe of 5-cm diameter and an electric resistor inside. Cold water at 20oC enters the heating section steadily at a rate of 30L/min.
Write a computer program that generates a sequence of random variables from a normal distribution with mean 5 and standard deviation 2. a) Verify that sample mean and the sample variance converge to the respective population values.
Determine how many years from now the consumption will reach its design capacity with current usage rates if the community has a declining growth rate.
A sled with two runners slides along a thin horizontal layer ofwater between the ice and the runners. The horizontal force thatthe water puts on the runners is equal to 1.2 lb when the sled'sspeed is 30 ft/s.
Estimate the inside diameter, wall thicknes and outside diameter of the pipe. The carbon steel pipe has tensile yield strength of 250 MPa. Assume safety factore of 2 and a corrosion allowance of 2mm. The maximumoperating pressure (MOP) is 55 bar.
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