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For major earthwork project, it is good economy to provide graders, water trucks, and even rollers to keep the haul road in good condition?

The maximum and minimum points on the mass diagram, where the curve transitions from rising to falling or from falling to rising, indicate a change from an excavation to a fill situation or vice versa. These points are referred as transition points.

The haul road from the borrow pit to the fill has an adverse grade of 6%. Wheel type hauling units will be used on the job, and it is expected that the haul-road rolling resistance will be 100 lb per ton.  What will be the effective grade for the haul? (Please show all work as best as possible and type out anything that you would like to clearly articulate)

Label this question as Q-UNK on your paper.  6 min. You must show your work as done in class.  Show starting equations and all work.  Use correct sig figs and units.  Circle final answer on paper. C = Carbon = 12.011 g/mol N = Nitrogen = 14.007 g/mol H = Hydrogen = 1.008 g/mol O = Oxygen = 15.999 g/mol An unknown drug compound is found to consist of 57.14% C,  27.21% O, 9.52% N, and 6.16% H by mass. A)  Using the information above, determine the empirical formula for the unknown compound?  You must use the method that was used in lecture to perform this calculation.  Show all your work.  Use correct sig figs and units. B)  Using your answer in Part A and the fact that the molecular weight of the compound was determined to be 589.01 g/mol, find the molecular formula for this unknown.  Again you must show your work as demonstrated in class including starting equations.  Place all final answers here with the appropriate letter and upload your work to the exam dropbox for grading.  

Because of wage differences between projects, the general practice is to keep operator wages as a separate cost category.

The total area between the irregular boundary and the traverse line is most nearly? (Please show all work as best as possible and type out anything that you would like to clearly articulate)

The most significant cash flows affecting ownership cost (outflows) are:

  Consider a reaction where aqueous solutions of Ca(CH3COO)2 and LiCO3 are mixed What insoluble precipitate is formed? A)  LiCH3COO C)  CaCH3COO D)  LiCa E)  Ca(CO3)2 F)  None of these choices is correct.   Choose the letter of the correct response.  

Earthwork computations involve the calculation of earthwork volumes, balancing cuts and fills, and planning the most economical material hauls.  On the diagram below, the volumes denoted by a. and b. in order to level the new surface between the retaining walls are referred to?

One (1) cubic yard of material after it has been disturbed by an excavating and loading process is measured in?