1)The stress on the circular footing of 6 m diameter due to column load is 200 kPa at the level of the footing i.e., z = 0 m. Calculate the vertical stress at a depth of 2 m, 4 m and 6 m below the central line of the footing and at edge of the footing. Also, draw the pressure bulb for 10% intensity of the applied in conventional graph sheet .

2)There are two borrowing areas ‘A’ and ‘B’ which have soils with void ratios of 0.8 and 0.7 respectively. The inplace water content is 20% and 15% respectively. The fill at the end of the construction will have a total volume of 10,000 m3, bulk density of 2000 kg/m3 and a placement water content of 22%. Determine the volume of soil required to be excavated from both areas. Assume that the specific gravity of the soils at site ‘A’ and site ‘B’ is 2.65 If the cost of excavation of soil and its transportation from the borrow area to the construction site is Rs 200 per every 100 m3 of soil for Area A and Rs 220 per every 100 m3 of soil for area B, which of the borrow area is more economical and justify your answer with detailed calculations

a)A route within an urban setting has three signalized intersections in series and at maximum intervals of 50m from one intersection to the next. During peak periods, there is backflow of traffic from one intersection to the previous. As a Traffic Engineer, what cost effective measure will you propose to alleviate this problem and how will you achieve it? It should be noted that physical improvements such as relocation of intersection, lane widening, channelization, etc. cannot be considered as options.

b) Most of the traffic signal systems used in Ghana are pre-timed signals. There are instances where phases with high traffic volumes have green times lower than phases with low traffic volumes. What could account for this signal timing deficiency and what can be done to rectify it? (AN,5)

QUESTION 4: PUBLIC PARTICIPATION “People are not demanding solutions, they are demanding the right to participate in the formulation of the solutions”. (Study Guide: Section 17.3). In view of the above statement, describe the proposed process of public participation with specific emphasis on the role of the town planner in such processes.

You are working as an assistant in a design office. A developer in your local area has contacted your company looking for advice as to what would be a suitable project to meet the needs of the local community but also be a profitable investment. The developer is considering a number of different sites in the area. please research your local area(Hong Kong) and select an appropriate construction-based project.

Topic:Minimising risk through design and specification

P8 Utilise appropriate forms of referencing and citation in the preparation of a written report.

P9 Prepare a presentation of your final project outcomes, utilising industry standard software.

Example 4: A settling basin is designed to have a surface overflowrate of 32.6m/d.

Determine the overall removal obtained for a suspension with the size distribution

given in the table below. The specific gravity of the particles is 1.2 and water

temperature is 20°C.

(M=1.0087x10 Ns/m2,P =998.23 kg/m3)

particale size mm (( 0.1 , 0.08 , 0.07 ,0.06 ,0.04 ,0.02 ,0.01))

Weight fraction greater than size % ((10,15,40,70,93,99,100))

1. Discuss which specific sector of crucial infrastructure you think is least critical (example: chemical, commercial, communication, dams, emergency services, energy, food & agriculture, healthcare, IT, nuclear reactors, transportation, waster & waste?)

2. Discuss what sectors you think to be present within your neighborhood & provide examples.

3. Why do you think that Sector-Specific Plans should be confidential or unclassified, & offer example recommendations

4. Do you think there is other critical infrastructures that belongs in the Sector-Specific Plans?

1. Provide a simple definition of structural design.

2. Give a description of both the LRFD and ASD design approaches. What is the fundamental

   difference between the methods?

3. Identify three sources of variation in the strength of a structure and its components.

4. Provide two examples of serviceability limit states.

What would be the percent change in deflection if a solid rectangular beam has its unsupported length changed from 30 inches to 36 inches?   SHOW YOUR CALCULATION. What does this tell you about the importance of unsupported beam length in structural design?

Assuming that electricity will be produced, compare the use of a pyrolysis or gasification system to a conventional mass burn combustion system. Under what conditions would a pyrolysis or gasification system be used?

Why is artificial intelligence bad for our future?

Cone of Depression – determini

ng the maximum pumping rate fo

r a specified draw down.

(+20)

A consulting company decides to u

se Pump & Treat to remove the

TCE plume from the aquifer. For an

unconfined aquifer such as this, t

here is a possibility that dr

awdown during the Pump & Treat operation will

lower the water table to the

bottom of the well and that the wa

ter will stop flowing (thi

s is bad). Suppose a 6

inch diameter well is installed

which fully penetrates the 15-m

thick aquifer which has a hydraulic

conductivity of 0.001 m/s. Deter

mine the maximum pumping rate

(in gallons per minute, gpm) that can be

sustained indefinitely if the dr

awdown at an observation well 5

00 m from the pumped well is 12 m and the

drawdown at the pumped well is

limited by the depth of the aqui

fer and the height of the submersible pump,

which you may estimate at 0.3 m

(i.e., drawdown in the pumping

well may not exceed 14.7 m).

Answer: Q = 50.5 gpm.

Usually, for a given slump, the cement and water demand will _________ as the maximum size of coarse aggregates decrease.
A. increase                B. decrease                  C. not change

Compare between curve A and B in the particle size distribution figure shown below, which one represents a well-graded aggregate? Your answer is _________.

What are the major similarities and differences between pozzolanic and hydraulic reactions for cementitious materials? (2 points)

Please explain why the impermeability and chemical corrosion resistance of the concrete are improved by using supplemental cementitious materials?

Identify and discuss the factors that can cause polls results to be wrong.​