Consider a tension-compression bar with N applied forces Fi at x = iL/N for i = 1, 2, . . . , N. Formulate the principle of virtual work for this system assuming that R(0) = 0

2. A garden hose attached to a nozzle is used to fill a 15-gal bucket. The inner diameter of the hose is 1.5 cm, and it reduces to 0.8 cm at the nozzle exit. If it takes 50 s to fill the bucket with water (density = 1 kg/L), determine

(a) the volume and mass flow rates of water through the hose, and

(b) the average velocity of water at the nozzle exit.

Tabulate R, T, L, PC, and PT for the horizontal curve with D = 4o42’21”, I = 40o00’00”, and PI station = 45+50.00 ft. Compute and tabulate curve notes to stake out the alignment from PC to PT at full stations using incremental chord and total chord method.

Give an example of a load-bearing orthopedic device. What properties should this device exhibit in order to be termed biocompatible? Briefly describe three possible mechanisms of metallic implant corrosion

factors that influence consolidation characteristics of soil

Given:

- Level terrain - extended freeway segment

- Urban area with 0.9 interchanges/km

- DDHV 4050 vehicles/hour

- 10% trucks, no buses, no RVs

- PHF 0.95

- Full shoulder and 3.6m wide lanes

Determine:

- Number of lanes to operate at LOS=C

The extract below is taken from a Level Book for levels taken between 2 TBMs. Complete the Level Book entries as well as calculate the adjusted RL (reduced levels) for all entries. The misclose error can be assumed acceptable. Note: all staff readings are in meters.

transpo: Please show step by step and the diagram too. An approach to a signalized intersection has a saturation flow rate of 1800 veh/h. At the beginning of an effective red, there are 6 vehicles in queue and vehicles arrive at 900 veh/h. The signal has a 60-second cycle with 25 seconds of effective red. What is the total vehicle delay after one cycle? What is the maximum length of queuing within this cycle? (assumeD/D/1 queuing)

The principles of risk management are routinely applied in society (e.g. benefits of a drug vs. potential harmful adverse reactions in some patients). Risk management principles enable decision-makers to determine a balance between risk and cost to reduce that risk. The "safer" we engineer something, the more it costs. Using risk management, a "cutoff" point is decided upon, where further expenditures to further reduce risk are not "cost effective." Advances in instrumentation are allowing us to "discover" pollutants in treated wastewater that we couldn't detect previously due to their minute concentrations. The pollutants are introduced by human activity and many advocates they should, therefore, be removed, regardless of cost. The cost of removing minute traces of any pollutant is very high due to the low concentrations. The counter-argument is that the pollutants, previously un-measurable, have been in treated wastewater for generations and haven't caused harm.

Questions:

1. How should this be approached?

2. Does risk management have a role?

How to make your community's transportation needs safe and sustainable? Please provide examples to support idea of how to provide safe and sustainable transportation to improve the community's livability.

Please explain and with the examples for about one page long. Thank you

A 36" RCP (n=0.015) conveys 9.7 ft^3/s at a slope of 1.5%.
a. Calculate the depth of flow in the pipeline
b- Calculate the velocity of flow in the pipeline

1. A Design-Bid-Build project delivery approach overlaps the design and construction phases, whereas the Design-Build approach requires each phase to be completed before moving on to the next one.

1. True
2. False

2. Identify ALL that apply: Under the Design-Bid-Build delivery method, there are legal contacts between which of the following.

3. Owner-Engineer
4. Owner-Contractor
5. Engineer-Contractor

3. Identify ALL that apply: The CM at Risk is responsible for:

1. Means and Methods
2. Quality Assurance
3. Payment to Subcontractors
4. Safety

4. A General Contractor must be the employer of the electrical and mechanical trades to be considered a General Contractor.

1. True
2. False

1. The Owner’s ability to influence design and cost is highest at the construction phase.

1. True
2. False

2. The conceptual estimate is useful in the schematic design phase when design details are not available.

1. True
2. False

3. A Cost-Plus contract is considered a reimbursable type of contract.

3. True
4. False

4. An advantage of a Lump Sum Contract is that the owner assumes the risk of construction cost.

5. True
6. False

data:highrate trickling filter

pipe dia = 30m

deep = 1m

swage flow = 4.5mld

recirulation ratio = 1.4

bod of raw sewage = 250mg/l

bod removed in primary clarifier = 25%

efficiency?

(ans:74%)