3. Consider the following situation and answer the subsequent questions to the best of your engineering ability and judgment. a. There are two Schultz Creek watersheds, East and West. The East drains into unincorporated communities east of Flagstaff, and the West drains into the City of Flagstaff itself. The key point about ‘unincorporated’ is that this means these residents did not live in a city or town, and for some infrastructure aspects like storm drainage, there were no requirements or regulations. Prior to 2010 both of these watersheds were heavily forested and due to almost a hundred years of fire suppression instead of fire management, both watersheds had accumulated thick, water-absorbing masses of pine needles and decomposed pine needles on the forest floor. This prevented the watersheds from ‘delivering’ runoff to its streams in normal years because all of the precipitation was stored in the pine needle layers, sometimes referred to as ‘duff’. Only in heavy snow and rain years, about once every 5-7 years, would the streams flow, instead of every one or two years. i. The East Schultz Creek Watershed is approximately 14 square miles in area. The West is about 6 square miles in area. Assume that the following hydrologic soil group percentages hold for both watersheds prior to 2010: 5% HSG D, 8% HSG C, 15% HSG B, and the rest is HSG A, due to the extensive duff in the watershed.

How can sewage treatment that combines both aeration and sedimentation in the same tank can be improve to treat high concentration of ammonia?

Describe some of the ways on which non-sway building frames are likely to undergo failure. Please include references.

Q1. Describe the aircraft parking system and runway configurations.

Please type the answer, if not possible you can write but at least 1-2 pages and also write relevant points.

A vertical curve has an incoming grade of -3.2% and the exit grade is +2.2%. The length of the curve is 800 ft. The stationing and elevation at the point of intersection of the grades are 73+22 and 1842.35 ft.

Compute the curve and determine elevations on the curve at the +00 points. Then determine the elevation of the curve at the low point. If a sewer pipe is to pass underneath at the lowest point, what elevation should the top of the pipe be located at if the required amount of cover below the driving surface is 4.50 ft?

a. Compare the suitability of the solid rectangular and hollow square columns to support a compressive load.

Comment on two of their key geometrical design aspects.

You are a PE working in the field with your surveying crewing laying out the foundation for an office building. The landowner comes by and asks you to survey the boundaries of the property, since “you are already out here, and I’m paying for it.” What should your response be? What do you need to consider?

• What can interior designers do to support indoor air quality?
• How are interior designers involved in avoiding problems with illnesses related to buildings?
• What can interior designers do to prevent indoor mold?

Question 1:

A) Identify five promising technologies used for construction, safety and health management. For each technology, highlight at least three benefits and three limitations.

B) Using Hierarchy of Control framework as a guide, discuss the impact/effectiveness of technologies discussed in problem 1.

Please Answer part B

8. are used to rim around windows, doors, and other openings.

1. Rounds
2. Casings
3. Caps
4. Backs

9. molding requires a compound miter.

1. Crown
2. Base
3. Shoe
4. Chair rail

10. are small decorative blocks used with molded casings.

1. Plinth blocks
2. S4S stocks
3. Back bands
4. Stops

11. Plank flooring comes in various width combinations ranging from inches.

1. 1 to 4
2. 2 to 10
3. 3 to 12
4. 3 to 8

12. Which of the following oak flooring grades is the best?

1. No. 1 common
2. No. 2 common
3. Select
4. Clear

13. Which of the following maple flooring grades is the best?

1. Special grade
2. First grade
3. Second grade
4. Third grade

14. grades of pecan flooring contain all heartwood.

1. First
2. Third
3. Red
4. White

Put in Order

Put in order the steps for cutting a coped joint. Write the corresponding numbers on the blanks.

A. Mark a W to indicate which side of the molding fits against the wall.

B. Carefully cut along the outlined profile with a fine-tooth coping saw blade, keeping the saw blade plumb.

C. Hold the molding so it is over the end of the sawhorse, and the side of the molding that will fit to the wall is flat on the top of the sawhorse.

D. Cut a molding piece to fit into the corner with a squared end and install.

E. Cut a miter on molding so it would fit into corner as an inside mitered joint. Rub a pencil along the edge.

1. In your own words, identify what the difference in volume is between effective precipitation and the volume under the hydrograph that is the response to that precipitation. Show how to calculate each. Use SketchAssist if useful; this is a mental App that everyone is born with.

A lined canal (n = 0.016) is designed to carry a flow rate of 33 m3/s. The canal is laid at a slope of 14 cm/km with a side slope of 2:1. Design the canal cross section (the water depth and bed width) according to each of the following scenario:

1. If Velocity is 1.0 m/s

2. If the Most efficient hydraulic section (i.e., when Rh=y/2)

3. If Width/depth =5

Comment on the practicality of the designs (Height of side slope, flow

velocity, variability of depth under reduced flows, land area for the canal).