QUESTION : what are the different kind of ventilation use in tunnel while construction and while in use of tunnel and why?

NOTE: This question refers to Steel Design. You may need to refer to the AISC Steel Construction Manual (you can google an older version if needed).

For bolted connections, what are the differences of bearing-type and slip-critical connections?
What are the typical limit states we should check for bolt connections? Please be as detailed as possible.

Your task is to build a wastewater treatment plant to handle all of the domestic wastewater produced by a housing estate. Using population equivalent, PE = 65000, design, describe and calculate briefly the sizes of all the unit processes in the treatment plant that are going to be built. You may assume the value that is not given.

Discuss any two methods that can be used to reduce traffic congestion in a round about during pick hours.

4.15   What are eight of the safety prevention measures that might be used to prevent accidents?

a) An earthen irrigation channel is 10km long and it is suggested to have a capacity of 18m3 /s for a flow depth of 1.2m. The cross-section is trapezoidal with a bed width of 10m and side slopes of 4 horizontal to 1 vertical. The bed slope is 1:1,000. What value of n was used in the design? How does this compare with the literature?

b) The channel in a) has floodplains of 250m on the left bank with a scattered brush, and 750m of cultivated land without crops on the right bank. The channel overtops and floods at a depth of 1.5m. What is the flow depth for a flood of 250m3 /s?

Discuss the Mohr Coulomb and Drucker prager criterion, their yield surface and examples.

Your task is to build a wastewater treatment plant to handle all of the domestic wastewater produced by a housing estate. Using population equivalent, PE = 65000, design, describe and calculate briefly the sizes of all the unit processes in the treatment plant that are going to be built. You may assume the value that is not given.

1. Who are the stakeholders and how they are impacted both positively and negatively.

2. What knowledge and skills are needed to implement sophisticated, appropriate and workable solutions to the complex global problems facing the world today?

3. What interdisciplinary perspectives would help identify innovative and non-obvious solutions?

4. What insights can you articulate, based your culture and other cultures with which you are familiar, to help understand your world view and enable greater civic engagement?

5. What is your position on the right thing(s) to do?

6. Comment on another member's comment that is related to your analysis.

Describe the adverse effects on aquatic ecosystem associated with the discharge of effluents containing high concentrations of suspended solids?

1. Describe the relationship of employment. Compare employment with agency and independent contractor – how are these the same? How are these different?

Topic: Construction - Structure

(1 paragraph minimum)

1.) Discuss the significance and relevance in modern construction of the structural integrity of buildings.

2.) Address the main causes of Structural Failures.  

a trapezoidal channel with a fall of 6m per km is required to convey a discharge of 7 m^3/s through terrain consisting of loose soil. perform the following .

A. design a trapezoidal concrete lined ( n = 0.013) channel.

B. design an effective trapezoidal concrete lined with Bermuda grass ( n= 0.035) which has minimum perimeter subject to the low hazard constraint Vy < 0.4m^2/s and v < permissible velocity.

write a review report on the topic impact of climate change on hydro power generation?