1. Why do you think the civil engineer should know about air pollution? Give specific examples from the viewpoints of transportation, building construction as well as environmental/public health engineering?

A 40 ft simple span beam is loaded with a uniform dead load of 2.4 kips/ft plus the beam self-weight and a uniform live load of 3.3 kips/ft. The lateral supports are located at the supports and at the midpoint of the span. Determine the leastweight W-shape to carry the load. Use A992 steel and Cb= 1.0. Design by (a) LRFD and (b) ASD. [6.16-36]

A 35 ft simply supported beam is loaded with concentrated loads 15 ft in from each support. On one end, the dead load is 8.0 kips and the live load is 18.0 kips. At the other end, the dead load is 4.0 kips and the live load is 9.0 kips. Include the self-weight of the beam in the design. Lateral supports are provided at the supports and the load points. Determine the least-weight W-shape to carry the load. Use A992 steel and Cb =1.0. Design by (a) LRFD and (b) ASD. [6.16-34]

1. Consider a 400-MW, 32 percent efficient coal-fired power plant that uses cooling water withdrawn from a nearby river (with an upstream flow of 10-m3/s and temperature 20 °C) to take care of waste heat. The heat content of the coal is 8,000 Btu/lb, the carbon content is 60% by mass, and the sulfur content is 2% by mass.

v. If the cooling water is only allowed to rise in temperature by 10 °C, what flow rate (in m3/s) from the stream would be required? Is this sustainable? What would you recommend?

vi. What would be the river temperature if all the waste heat was transferred to the river water assuming no heat losses during transfer? Would that be a problem? Why or why not.

vii. Estimate the hourly SO2 emissions (in kg/h) from the plant assuming that all the sulfur is oxidized to SO2 during combustion.

What are Intensity Duration Frequency (IDF Curves)?

what is their used for and why do they matter in the engineering world?

What are the primary strengths or weaknesses of the method or concept?

What would have made it easier for you to understand the method or concept?   

Consider a concrete beam in an interior environment as follows: a. The beam is simply supported with a design span of 4.8 metres. b. The dead load in the beam is uniformly distributed. c. Dead load on the beam, in addition to its own weight, is 6.9 KN/m of which 75% is permanent (long term). d. The beam carries a single concentrated live load at mid-span of 70 KN. e. 20% of the live load is considered short term. f. The dimensions of beam are: b = 280 mm, d = 490 mm, cover c = 45 mm g. The beam only has tension reinforcement provided by 3 N20’s. h. f’c = 25 MPa fy = 500 MPa γc = 24 KN/m3 Determine: 1. The design ultimate moment in the beam M*. 2. The ultimate moment capacity of the beam øMuo. Is the beam ductile? 3. The serviceability moment in the beam ?? ∗ . 4. The Code allowable mid-span deflection. 5. The long term deflection at mid-span of the beam. Does it comply with the Code requirements?

For the shape shown below, calculate the moment of inertia about the x axis. (Figure 8)The dimensions are d1=345 mm, d2=160 mm, d3=120 mm, and r=80 mm.

For the shape from Part C (shown again here for reference), calculate the moment of inertia about the y axis.(Figure 8)The dimensions

IN Bull Run, why was Judah sent to the battlefront? What challenges did he face?

What is identity? Why is identity so important? What makes up one's identity? Is it the same for each individual? Is it different? Moreover, what makes up your own identity?

A triangular concrete (n=0.013) channel having a side slopes 2H:1V is designed to carry a flowrate of 200 cfs at a normal depth. The channel bed slope is 0.1%.

a) Determine the state of flow (regime).

b) Farther downstream the channel slope changes to 0.9%. Determine the new state of flow. c) Classify channel slope. Sketch the water surface profile from upstream to downstream sections.

Briefly explain geological conditions that negatively affect building foundation and discuss the corrective measure that should be taken to tackle the problems , with reference

Blending of wastes to achieve an optimum C/N ratio. Leaves, with a C/N ratio of 50, are to be blended with waste-activated sludge from a wastewater treatment plant, with a C/N ratio of 6.3. Determine the proportions of each component to achieve a blended C/N ratio of 25. Assume that the following conditions apply: moisture content of sludge = 75%; moisture content of leaves = 50%; nitrogen content of sludge = 5.6%; and nitrogen content of leaves = 0.7%.

What is the difference between Central Terminal with Remote Satellites and Central Terminal–Pier Satellites
Terminal configurations? In your opinion which is better and why?

Review the following and then analyze the conditions listed below and present how these conditions should be dealt with as claims to an Owner, that is what types of money cost/delay, etc., should be submitted as requests for change orders or claims:

• Base contact- $77,000,000 to build a twenty story building
• Contract schedule: complete in 300 days
• Liquidated damages = $7000/day
• Owner issued notice to proceed and contractor started work on September 9, 2013
• Contractor could not access site due to property rights issues until November 20, 2013
• Excessive rain and storms prevented work from proceeding for one week in November, 2013
• Excavation contractor did not begin work until December 12, 2013, two weeks after being asked to start work
• Excavation contractor started work and encountered soil containing cyanide and stopped work.
• Contractor notified owner of cyanide soil and indicated a change order for time and material costs were required to remove the cyanide soil
• Owner stopped the work to analyze the cyanide condition
• Owner issued a change order pricing request after two months of time
• Contractor responded to the pricing request indicating 3 months of extra time and $2,000,000 of cost was required
• Owner accepted cost request but denied extra time request