COURSE: SOIL MECHANICS
-Types of Retaining Walls
1. Gravitational Walls
2. Cantilever Walls
3. Criva Walls
4. Gabion Wall
5. Sheet pile walls
6. Screen walls
7. Armed Earth
8. Walls in Mensula
9. Buttress Walls
-Describe the identified retaining walls
-Identify the importance and application it represents.

Q1: Define creep in concrete? Distinguish it from elastic deformation.

Q2: Discuss the rate of concrete drying shrinkage at different ages.

Q3: Explain the positive aspects of bleeding on concrete.

Q4: Explain the effects of size and grading of aggregates on workability of concrete?

Q5: Differentiate between additives and admixtures with examples.

Q6: Explain the working mechanism of retarders, plasticizers and air entrained
admixtures.

Q7: Define volume and weigh batching of concrete? Explain with examples.

Q8: Differentiate between continuous and batch type concrete mixers?

Q9: Explain, how to improve cohesiveness of concrete ingredients? Indicate its effects on
concrete segregation?

Q10: Discuss the primary reasons for the abnormal setting behaviors of concrete?
Describe how chemical and mineral admixtures may cause concrete abnormal setting with
the help of examples.

1. Do research on the Curriculum Development Centre (CDC) in Malaysia. Find out what the department is about, the function, its roles, and contributions in the curriculum development of Malaysia or your homecountry.

2. Select only ONE education level (pre-school, primary, secondary, tertiary) in Malaysia and explain the Curriculum Development in chronological history until the present day.

3. Write your findings in a 4- pages report (Not inclusive of diagrams or pictures) and include your reflection at the concluding paragraph.

Case Study

N. Got, P.Eng., has been hired recently as the chief engineer, as well as his assistant, James Lo, C.E.T., by a gold mine near a remote town in Northern Ontario. The mining company is the main employer in the region. Immediately upon starting the new job, N. Got spent some time reviewing the mining company’s operational procedures. No Got discovered that, for several years, tailing ponds at the mine have been releasing toxic and corrosive substances into the environment in violation of the law. N. Got also found in the company’s file a recent report prepared by an engineering consulting firm in Toronto. The report concerned an economic feasibility study for updating the mine’s facility. In the report, the engineering consulting firm specifically urged the mining company to undertake a number of expensive capital improvements necessary to ensure compliance with environmental law. N. Got also learned that the mining company could not afford the necessary improvements. N. Got found nothing in the mining company’s files that indicated that any governmental authorities were aware of the illegal discharges.

1. Discuss N. Got’s obligations with respect to the mining company

2. Discuss N. Got’s obligations with respect to the public. What is the public interest in this case? How would the public interest be impacted by N. Got’s actions? How should a potential mine closure and the resultant loss of a large number of jobs affect N. Got’s professional duties?

3. Discuss N. Got’s obligations with respect to the engineering consulting firm.

A class I two lane highway is on level terrain with passing permitted
throughout. The highway has 11 ft lanes with 4 ft shoulders. There are 16 access points
per mile. The base FFS is 60 mi/h. The highway is oriented north and south, and
during the peak hour, 440 vehicles are going northbound and 360 vehicles are going
southbound. If the PHF is 0.87 and there are 4% large trucks, 3% buses, and 1%
recreational vehicles, what is the level of service.
Given:
ATS: PTSF:
ET= 1.2 ET= 1.1
ER= 1.0 fG=1.0 ER= 1.0 fG=1.0`
when it is level terrain, 600<vp<1200

A two-lane highway is currently operating at its two-way capacity in
rolling terrain. The traffic stream consists of cars and trucks only. A recent traffic
count revealed 720 vehicles (total, both directions) arriving in the most congested 15-
min interval. What is the percentage of trucks in the traffic stream based on the ATS
service measure?
Given:
ATS:
fG=0.99 when it is rolling terrain, vp>1200
ET= 1.5
when it is rolling terrain, vp>1200

A rectangular beam carrying a uniform load of 26 KN/m including its own weight is limited in cross section to 300 mm x 500 mm. The beam is simply supported in a span of 6 m. Using fc = 7 Mpa, fs = 124 Mpa, n = 12, ?? = 40 ???, ?? = 1.7 ???, ?????? ?ℎ? ????. Allow 65 mm distance from centroid of steel bars to extreme fibers.

During the construction of a building, what are the main environmental considerations which you should address?

use the tables of compound interest to look up the value of the factors. Do not use the interest formulas.

Two mutually exclusive alternatives are being considered. Both have lives of 5 years. Alternative 1 has a first cost of $2,500 and annual benefits of $746. Alternative 2 costs $6,000 and has annual benefits of $1,664. The minimum attractive rate of return (MARR) is 8%.

1. Use present worth analysis to determine which alternative should be selected.
2. Use annual cash flow analysis to determine alternative should be selected.
3. Use rate of return analysis to determine alternative should be selected.

Give at least 10 transportation and structural engineering topics for Capstone proposal or Thesis.

Given :

M=150kN-m , fc'=21Mpa , Fy=420Mpa , fs allowable = 0.4fy

Design a doubly reinforced concrete beam section , give the b , d , d' , As' , As of the concrete section.

Referring to Conflict management, identify the five major steps involved in managing a conflict situation with the help of an example detailed for each step. Type into the text box below: