What are meant by the following abbreviations in the context of transport appraisal?
(i) BCR
(ii) NPV
Give definitions and describe how they are calculated. Compare their strengths and weaknesses in transport appraisal. Explain which you think is better.
In: Civil Engineering
A beam with a cross-section of 0.3 m x 0.7 m has an effective depth of 0.638 m and a span of 4.30 m. Use the following data below to determine (a) the steel requirement due to flexure, (b) ultimate threshold torsion, and (c) spacing of stirrup due to combined shear and torsion:
Mu = 322 KN-m
Vu = 317 KN
Tu = 42 KN-m
f'c =28 MPa
fyt = 414 MPa
12 mm stirrup diameter
cover of 0.04 m
In: Civil Engineering
Which of the following is not one of techniques for financial appraisals?
The market approach that uses prices and other relevant information generated by market transactions involving identical or comparable assets, liabilities, or a group of assets and liabilities.
The cost approach which reflects the amount that would be required currently to replace the service capacity of an asset.
The income approach that converts future amounts (such as cash flows or income and expenses) to a single current (discounted) amount.
The appraisal approach that uses the result of financial appraisal done by experts.
None of the above.
In: Civil Engineering
Structural Dynamic. Assume and draw 7 story building with using different K Stiffness for column and M mass value for slab to show how the mass M and K stiffness matrix will be looks like for 7 story building For column do use like 2K, 1.5 K. 3 K and slab like 2m, 3m, 1.5 m and to see and learn how to obtain the mass and stiffness matrix for 7 story building in term of K and m only. Provide sketch and equation of Motion for un-damped structure
In: Civil Engineering
Pavement performance is an important factor in pavement design because it provides a framework upon which a judgement on the road is either success or failure, which is associated with the ability of the pavement to carry out the design loading. Based on these statements, briefly discuss a distinction between the two different types of failures.
In: Civil Engineering
The shorter legs of two 6”x 4” x 1⁄2” angles are welded
to a 12”-20.7-lb channel. Determine the moments of
inertia of the combined section with respect to
centroidal axes respectively parallel and
perpendicular to the web of the channel.
In: Civil Engineering
When answering the following questions, explain the relationship to critical infrastructure protection.
Describe five of the 11 transportation infrastructure in terms of risk and protection - roads, railways, walkways, bridges and tunnels, stations, airports, air routes, waterways, ports, cycling infrastructure, and living streets.
In: Civil Engineering
Non suspended slab and suspended slab.What is the difference in details? Where is the location? What is the challenge to build it?
Explain the construction of both slab step by step in details.
In: Civil Engineering
Immediately after a fill is placed, the excess pore water pressure in an underlying saturated clay is equal to:
a. 0
b. 100 lb/ft2
c. The hydrostatic pore water pressure
d. The unit weight of the fill times its thickness
e. Half of Δσ_z
In: Civil Engineering
The study of the mechanics of solids is a central object in the formation of various engineering modalities. And it is not for nothing that it is mandatory discipline in almost all engineering. Almost every concrete human achievement (not just intellectual or virtual), be it a building, a machine, equipment or even a (plastic) work of art, needs a structural support, something that can perform its function mechanically .... (José Roberto de F Arruda).
Given the great importance of solid mechanics in Engineering, cite and comment on 3 examples of the application of Solid Mechanics in our daily lives, and their importance in solving engineering problems.
In: Civil Engineering
Case study: TBS Shipping
1. Assuming the MV Hamburg Pearl has a DWT of 44,500 MT, an
empty weight of 6,500 MT, and a crew, stores, and fuel weight of
1,000 MT, estimate how much of the following will fit into the
cargo holds, without exceeding the ship's volume or weight
limits:
Sunflower seeds: Blank 1 MT
Cobalt: Blank 2 MT
Peanuts (unshelled): Blank 3 MT
To answer this, you will need to look up standard values for stowage factors and calculate the answers. If you find the stowage factor is a range, use a value in the center of that range.
2. Why do you think the problem with the wood pellets happened without being caught ahead of time? Use your own words to explain the basic reason in a sentence or two.
3. What would you do to protect against this problem happening again?
In: Civil Engineering
The wastewater treatment plant will also treat wastewater originating from the industrial activity of textile mills in the future. proposed and describe appropriate unit processes that can be added to the plant.
In: Civil Engineering
Describe how the term “E” waste is related to this document. Are we potentially curing one environmental problem and creating another?
In: Civil Engineering
During a chemical treatment of wastewater the reaction rate found to be 20.8 /minutes when the temperature of wastewater was 29.4°C. What will be the reaction rate when the same reaction is performed in the evening when temperature reduced to Y °C. The value of temperature coefficient is 1.130
NaOH + FeCl3 > Fe(OH)3 + NaCl
In: Civil Engineering
Morrison claims that the building of the Middlesex Canal can be seen in one of two ways: (1) "a continual and almost systematic botching of a very simple process"; or (2) "as an exercise rather more remarkable than [landing a man on the moon]" (Page 29). Which interpretation do you consider more accurate, and why? Use three examples to explain your argument.
In: Civil Engineering