Using the compressive stress-strain data provided in fig below and the Australian standard AS 1012.17 test method for determining the modulus of elasticity of concrete, determine the modulus of elasticity of concrete for the following two scenarios: a. concrete requiring complete hydration f the Portland cement and minimal porosity b. Concrete that will simulate equivalent workability to the concrete mix listed in bullet point (a) but with HWR added to the mix to maximize the plasticising effect

Size the hot water tank (i.e. determine its rating, storage capacity, and dimensions) for a duplex that has 2 families, with 3 adult occupants each. Assume the typical morning routine includes taking a shower, face/hand washing, tooth bushing, food preparation, and automatic dishwashing.

Design a space within a building (could be one room) indicating the interior thermal
mass and construction. The design should illustrate the best location for thermal mass
and window placement in order to improve indoor comfort and building's thermal
performance.

Topic: Construction - Soil

1.) Create a 1-2 pages minimum technical report about the "Index Properties of Soils". Your report should include types and condition of soil, and provide their structural properties, compressibility, shear strength and compactness (relative density) characteristics.  

2.) Provide technical references from at least one source to support your points.

Explain with appropriate examples , how selection of construction machineries and equipment effect the construction project planning ?

(write by Microsoft Word )

Which of the following are the shortcomings of a code of ethics formulated by “professional engineering society”? (1) These codes are not formulated with sincere scholarship or expertise and are often a hostage to economic interests. (2) Most practicing engineers do not belong to any professional engineering society, so the codes cannot properly reach out to them. (3) Such codes, at best represent the highest ethical common denominator among those to who it applies, therefore, it may include provisions which may be ethically questionable (4) These codes are not exhaustive – and there are matters of ethical importance that may go unnoticed

(a) 1 and 2

(b) 1, 2, 3 and 4

(c) 2, 3 and 4

(d) 2 and 3

Using Mohr's circle explain why for lateral earth pressure in sand against a retaining wall, the active thrust behind the retaining wall is always less than the passive thrust?

Both isotropically consolidated undrained (CIU) triaxial test and an isotropically consolidated drained (CID) triaxial test are conducted on a loose sand. Without calculation which test will have a higher deviator stress at failure?

choose one type of space truss structure for a 100m span hangar and a 30m span gas station, respectively, and explain the reason briefly

Differentiate between Unified Soil Classification System (USCS) and MIT Soil Classification Systems. Differentiate between Unified Soil Classification System (USCS) and MIT Soil Classification Systems.

PURPOSE:

The purpose of this assignment is to enable the students to enhance their knowledge on the environmental engineering and sustainable development for environmental engineering.

TASK 1 (DOCUMENTATION)

Development in science and technology has increase the level of human lifestyle which leads to technology advancement. However, everything good comes with a price. One of the greatest problems that the world is facing today is that of environmental pollution, increasing with every passing year and causing grave and irreparable damage to the earth as a results of the chemical by-products produced from a human activities. Nowadays, more than 700 emerging pollutants, their metabolites and transformation products, are listed as present in the European aquatic environment alone (www.norman-network.net). The presence of emerging contaminants, including pharmaceuticals and personal care products (PPCPs), pesticides, and endocrine-disrupting chemicals (EDCs), in water bodies is a serious problem in many countries. However, the environmental fate of emerging contaminants and their behavior is largely unknown. They are presently not monitored in the environment but have a high potential of causing environmental damage and suspected detrimental effects on ecosystems and human health (Geissen et al., 2015).

The goverment of Malaysia is requesting the environmental consultant company you are currenly working to do a study on the impact of emerging pollutants to water suppy system in Malaysia. This study must include the current management apply to manage this pollutant. As a team leader you are required to prepare a documentation consist of:

1. Introduction: Described what is the Emerging pollutants
2. Discuss the significant impacts of Emerging pollutants to our water supply system
3. Discuss the current action taken by authorities to reduce, remove and manage this emerging pollutants according to current law and regulations.
4. As an engineer responsible, suggest potentially sustainable methods for the treatment and management of emerging pollutants. Write a reason why you chose the methods.
5. Conclusion

requirement:

1. Number of words: 3500 - 5000 Words excluding references.

[TOTAL: 100 marks]

1. Explain how changes are handled in Qatar construction projects. How is BOQ (Bill of Quantities) related to change order payment?

2. Explain if owner has direct relationship with the subcontractors. What happens if owner interferes into the work of the subcontractors.

6. What are 5 different types of cement? Name all the ingredients used in concrete with their proportion.

Based on the practice of EWIS wiring installation practice, describe the technical procedures to satisfy FAA’s requirements.