Example of using steel bar in concrete (choose your own example including picture/drawing/sketch).

A new landfill site is to be designed with a projected life of 32 years for a population of 220000 generating 2.27 kg waste/capita/day. The density of the compacted waste is 537 kg/m3. The height of landfill cannot exceed 13 meters. Please use the knowledge of solid waste management (especially landfill design) to describe the area (width x length) required for that landfill, if:   
a. The landfill does not have slopes   
b. The landfill has slopes (3:1 ratio)

Rainfall induced slope instability is a common phenomenon for an area in tropic region. Please discuss why rainfall will trigger the slope instability. You may apply the concept of principle of effective stress while explaining the slope instability (if necessary). Propose ONE (1) method of slope protection work and briefly elaborate how to control or prevent this from happened (slope failure due to rainfall).

The tangents of a spiral curve intersect at an angle of 25°at STA 4+072. The radius of the central curve is 300m and the length of the spiral curve is 52.71m.

a.) Determine the external distance of the spiral.

b.) Determine the offset distance from the tangent to the start of the central curve.

c.) Determine the spiral angle from TS to SC.

d.) Determine the deflection angle from TS to SC.

e.) Determine the stationing where the central curve ends

A domestic wastewater with a flow of 1700 m3 / day will be treated in a biological treatment plant. Wastewater pre-settling tank effluent BOD value is 350 mg / L. If the volume of the biological reactor (ventilation reactor) is 500 m3, do you prefer a fully mixed or plug-flow reactor? Please explain the reasons.

explain the water footprint consumptions in Oman and consumers behavior

A vertical summit curve has tangent grades of +2.5% and -1.5% intersecting at station 12+460.12 at an elevation of 150m above sea level. If the length of the curve is 182m: a. Compute the length of the passing sight distance.

b. Compute the stationing of the highest point of the curve.

c. Compute the elevation of the highest point of the curve.

Q) Determine using the NRC formula, the BOD5 of the effluent from a single-stage, low-rate trickling filter that has a filter volume of 1,500 m3 , a hydraulic flow rate of 0.26 m3/s, and a recirculation ratio of 1.5. The influent BOD5 is 360 mg/L. Would the single stage be sufficient to achieve the WHO BOD efficacy? If not how can you improve the system efficiency and provide the necessary calculations?

Q) A. Design a set of three rectangular grit basins with proportional flow weir for a plant which has a max flow of 97,500 m3/day, an average flow of 75,000 m3/day and a minimum flow of 30,000 m3/day. Make the max depth equal to the width. The design velocity (Vh) is 0.5 m/s. B. Design a set of three parabolic channel for the same flow rates and design velocity in branch A above.

Abdul-Rahim Taysir

You are contracted to produce a map of University of Ghana covering the area shown in the image below. Explain how you will arrive the final map [Hint: your explanation should touch on how you will collect your data, perform selection, classification, simplification, symbolization and finally the map design]

Risk registers are a common part of professional practice in construction in identifying and analysing risk. Critically appraise the limitations of the risk register in effectively managing risks during the project delivery stage.

^{Briefly identify and discuss four ways clients (or their representatives) could try to reduce the adversarial (win-lose) nature of construction contracting}

Road engineering:

Explain with diagrams, the concept of the major and minor drainage system approach.

What are the methods by which the effect of punched holes can be considered in
the calculation?