A rectangular channel with a base width of 3 m carries a discharge of 6 m3/s at a depth of 1.1 m. At downstream, there is a gradual rising of a channel bed of 0.1 m.

a) Plot the specific energy curve from y = 0.4 m to 1.3 m in a step 0.1 m and from the curve, determine the depth of flow at the downstream section. Label the graph and show your working answers clearly on the graph. *

1. Describe theoretical and regional flood frequency analysis method for computation of flood hazard.

Briefly explain how levelling is carried out and the formation of the collimation error. How can the collimation error be eliminated? Also, describe other possible sources of error in levelling, and explain what precautions can be taken to avoid these errors.

A sag vertical curve is to join a grade of g1=−3.50% to a grade of g2=−1.25%. What is the minimum length of the curve for acceptable passing sight distance at night, with headlight illumination? Express your answer in feet to five significant figures.

there is no more info. this is all that was given to us.

USING UNITED STATES IBC CHAPTER 6

1. An exterior wall is defined as a building enclosing wall that has a minimum slope of ____ degrees with the horizontal plane.

A. 45               B. 60               C. 75               D. 90

2. Veneer secured and supported through the adhesion of an approved bonding material applied to an approved backing is considered as _______ veneer.

A. adhered                  B. anchored                 C. attached                  D. spandrel

3. A minimum of _________ shall be attached to exterior sheathing in order to provide a continuous water-resistant barrier behind the exterior wall veneer.

A. one layer of No. 15 asphalt felt

B. one layer of No. 30 asphalt felt

C. two layers of No. 15 asphalt felt applied shingle fashion

D. two layers of No. 15 asphalt felt applied shingle fashion

4. Precast stone facing shall be a minimum of ____ inch in thickness in order to be acceptable as an approved weather covering.

A. ½                            B. 5/8                          C. ¾                            D. 1

5. When installed in a compliant manner, exterior masonry veneer having a maximum installed weight of ____ pounds per square foot may be supported on wood construction.

A. 15                           B. 20                           C. 25                           D. 40

6. What is the minimum permitted thickness for metal veneer mounted on approved sheathing on wood construction?

A. 0.0149 in                B. 0.0224 in                C. 0.0478 in                D. 0.0630 in

7. List the performance requirement(s) of weather protection of exterior walls as per code.

8. Use of wood, masonry, concrete and several other materials are permitted in the code for the construction of exterior walls. Name five (5) more approved materials.

9. List the specifications for the wood veneers on exterior walls of Types I, II, III & IV buildings.

10. The code permits the use of combustible materials in the construction of exterior walls of Types I, II, III & IV buildings, however, with some limitations. List four (4) such limitations.

Short answer please..

During the site investigation for a highway project, you observed a wet clayey soil deposit. How can you check scientifically the saturation condition of soil in terms of saturated/unsaturated state?

A soil specimen is subjected to a uniformly distributed fluid pressure only in a triaxial compression test. Draw the Mohr’s circle representation of the state of stress within the soil specimen.

Would you like to recommend cohesive soils as the backfills behind a retaining structure? Justify your answer.

Example of Mix design proportion calculation
• You need to design the mix proportion of a grade 40 for a column with workability of 50
mm slump and w/c not more than 0.55. The maximum size of gravel aggregate is 10 mm
and the fine aggregate is quarry blast sand. The moisture content of the aggregate is as
follow:
• The gravel aggregate is in moist condition with moisture content of =3.5%, dry density
= 1700 kg/m3
• The sand is in moist condition with saturated surface dry density = 2600 kg/m3
. Percent
passing at 600m =35%,water absorption = 0.5%,
• Aggregate relative combined density (saturated surface dry) = 2.60
• Cement used is Sulfate Resistance because part of column is in soil identified to contain
sulfate

21. List at least 10 functions that exterior building cladding performs and list one or two ways in which each of these functions is typically satisfied in a cladding design. Answer:

a. _______________________ ; ______________________________________________________

b. _______________________ ; ______________________________________________________

c. _______________________ ; ______________________________________________________

d. _______________________ ; ______________________________________________________

e. _______________________ ; ______________________________________________________

f. _______________________ ; ______________________________________________________

g. _______________________ ; ______________________________________________________

h. _______________________ ; ______________________________________________________

i. _______________________ ; ______________________________________________________

j. _______________________ ; ______________________________________________________

A a = 0.55 (m) × b = 0.3 (m) concrete box with Manning roughness coefficient of n = 0.016 is to be placed under a roadway. During the T = 100 years design storm, it is expected that water will pond behind the culvert to a height h = 0.2 (m) above the crown of the culvert. If the culvert entrance is to be rounded with the exit loss coefficient of Ke = 0.2 and discharge coefficient of Cd = 0.45. If the slope of the culvert is S% = 0.2 and the length of the culvert is L = 4 (m),

1. estimate the flow rate through the culvert.
2. If the flow rate drops down to 20% of the design storm, estimate the depth of water behind the culvert.

Why is this false?

IDF curves, becoming more accurate when correlated with areal photography (e.g., photos captured via airplane, etc), yield average rainfall depths for a given watershed serving as another way to validate averaging techniques such as the Thiessen methods.

#1

You are overseeing the plans for construction of a new highway. Someone proposes using cheaper, substandard materials to control/treat water flowing off the construction site. The water on the construction site contains measureable concentrations of sediments, oils from vehicles, heavy metals, and components of asphalt. A recreational lake is nearby and downgradient from the construction site. This is a substantial slope (10% grade) across the site.

a) LIST the three pillars of sustainability and EXPLAIN how this issue connects to each pillar.

b) Assuming you are a licensed engineer, what is your ethical obligation to the public AND other licensed engineers working on this job? [Your response should cover ethical obligations to both parties.]

c) LIST and DESCRIBE at least two ways to control fluvial (water) erosion on this site.

Will like right away!!

Can a soil swell during shearing? List two field examples where this can be observed?

what is meant by mollier diagram? Explain.

5. Explain and use diagrams where applicable the following:
   • Transportation network hierarchy
   • Density
   • Captive and Choice riders
   • Types of Right-or-Way categories and their differences
   • Name and explain the three (3) types of stopping regimes for transit operations
   • Advantages and disadvantages of articulated bus versus regular bus.

1. Name the four (4) factors involved in highway crashes.
2. Explain or define Grade-Separated highway.
3. Define and explain two (2) types of At-Grade Intersections, and use diagrams to illustrate your explanations.
4. How many Right-of-Way (R/W) Categories do we have in Urban Public Transportation modes? Explain in detail the operational and physical characteristics of the R/W Categories identified. Give real world examples for each.