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A contractor has submitted a tender while specifying that it is available for acceptance for a

period of five weeks after the tender submission. However, the contractor withdrew its bid

after two weeks due to an unexpected rise in its workload. Can the owner recover the costs

for employing a different contractor? Explain.

The following laboratory tests are performed

a- Setting time test of cement paste samples

b- Compressive Strength of mortar cubes

c- What cement component (C₂S, C₃S etc.) plays most important role in each of the tests and why?

d- Which cement type will give you best and worst results for each of the tests? For compressive strength assume that it was run 3 days after casting

For a and b what are the significance and use of each of these tests

Using sketches and notes, explain how a “Brick Veneer Expansion Joint” is assembled and the primary function it performs.

Question 1

a) The terms “Efficiency” and “Effectiveness” are extremely important to the success of any construction project and the site manager. In your own words define and distinguish the meaning of the two terms with suitable examples with respect to a construction site in the UK.

b) Apply the two terms in your role as a construction site manager and illustrate how you would achieve the right balance between the two.

c) What other aspect of your work as a site manager in a construction site would you rank at the top of all other issues/activities/tasks and why?

In three sentences, describe the similarities between performance and prescriptive specifications as related to design-build.

Question 6

a. Using the example of brick laying in a construction site clearly explain the following:

i. Push or Building-to-stock

ii. Pull or Building-to-order

iii. Push-Pull Point

b. Define Supply Chain Management (SCM). List and explain some of the key benefits and challenges in SCM especially within the context of a Construction Manager.

c. What is Just-in-time (JIT) approach and where did it originate from? How does it help in the reduction/elimination of waste especially in the context of a construction project?

Construction Management and Site Management can be treated as two separate entities although with a very fine and at times obscure line dividing them.

Summarise to what extent the above statement is valid. Your discussion should specifically interpret and apply the above statement in the context of a large commercial construction project in the UK and distinguish the similarities and differences in the two roles and the duties discharged. Your arguments can be supported with practical examples, diagrams, etc.

The permittivity of a geotextile fabric to stormwater (15°C) is 0.05/sec. What would be the new permittivity if the stormwater was replaced by saltwater (also 15°C)? By gasoline? Be sure to cite where you found values for viscosity and density.

I want to calculate how much weight a PVC panel will support, for instance, If a person were to lie on top of the panel, what is the maximum weight of the person that this panel will support, before breaking. Its thickness is 1/4th inch. It has a length of 84.5 inches and a width of 12 inches. This panel is support in both of the shorter ends by an aluminum railing.

1. For a normal population with known variance s2, answer the following questions:

(a) What is the confidence level for the interval: ?− 1.85?/√?≤ ?≤ ?+ 1.85?/√??

(b) What is the confidence level for the interval: ?≤ ?+ 1.4?/√?

How do you think the pay-to-play scandal affect civil engineer professions?

Q1)

The three criteria that are required to be checked together in order to assess an action of an individual of being ethical and unethical (in accordance with Gerald Cavanagh, Dennis Moberg and Manuel Velasquez) are: a. ………………………………………….. b. ………………………………………….. c. …………………………………………..

b) How the organization puts its ethical stance into practice, by addressing different stakeholders’ interests is referred to as ………………………………………………………………

c) The competencies of an engineer may be categorized into: a. …………………………………………… b. …………………………………………… c. ……………………………………………

Determine the ultimate load carrying capacity of a group pile in the following scenarios: a) Piles are 20 m long, 3 by 3 in plan, square in cross section and to be driven into a granular soil b) Piles are 20 m long, 3 by 3 in plan, square in cross section and to be driven into saturated clay soil c) Provide a reflective comment on your results

A simply supported beam of length 7m has a concentrated couple M_o (counter clockwise) of 10kNm applied at one end.

Using DIM(Double Integration Method):

1. The maximum deflection is located at what distance from the applied load?
2. Calculate the maximum deflection assuming E = 200 GPa and I = 60x10^6 mm⁴