A monolithic reinforced concrete floor is to be composed of rectangular bays measuring 6 m x 7.5 m. The floor is to designed to carry a service live load of 5 KPa, floor finish of 1.5 KPa, and ceiling load of 1 KPa, in addition to its own weight.

Design the corner floor panel slab using fc’=21 MPa, fy = 400 MPa, and concrete unit weight of 23.54 KN/m3.

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A water treatment plant is designed for a constant flow rate of 3 MGD. The flocculation system consists of three tanks, each having a water depth of 10 ft and an average hydraulic residence time (HRT) of 30 min.   
(a) Determine the dimension of each tank (i.e., width and length).

(b) Determine whether the flow through velocity is acceptable.

(c) The plant is planning to take one tank out of service for maintenance. Determine the increase in power requirement in the remaining two units to maintain the average velocity gradient (G) of 40 sec-1.

Summarise the cement production process.

arrive the cross section of a plate girders for railway bridge with effective span of 30m and dead load on the open floor 7.5 KN/m . equivalent total load for BM calculation per track is 2727KN and for shear is2927 kN

Compare the following risks: Preventable risks, Strategy risks, and External risks.

subject : risk management is construction

Based on the Engineering Case Study on Highland Towers Collapsed, answer the following questions;

a) Explain the factors contributing to the collapse of the building.

b) Explain Highland Properties engineer’s misconduct and relate it to the BEM Code of professional conduct.

1. Explain what life cycle analysis means. What is the importance of this analysis with respect to material selection? Explain in detail.

1. Why it is important for engineers to have a basic understanding of contract law?
2. Why is it important for constructors to have a basic understanding of contract law?
3. Why is breach of contract the central focus of all of the parties to a contract?

You have been asked to review the performance of a combination
solution gas, gas-cap drive reservoir. Well test and log information show
that the reservoir initially had a gas cap half the size of the initial oil
volume. Initial reservoir pressure and solution gas-oil ratio were 2500 psia
and 721 SCF/STB, respectively. Using the volumetric approach,
initial oil in place was found to be 56 MM STB. As you proceed with the
analysis, you discover that your boss has not given you all the data you
need to make the analysis. The missing information is that at some point
in the life of the project a pressure maintenance program was initiated
using gas injection. The time of the gas injection and the total amount of
gas injected are not known. There was no active water drive or water
production. PVT and production data are in the following table:

a) At what point (i.e., pressure) did the pressure maintenance program
begin?

b) How much gas in SCF had been injected when the reservoir pressure is
500 psia? Assume that the reservoir gas and the injected gas have the
same compressibility factor.

Explain Revenue Bonds & commissioning stage in construction

A ) Briefly explain the main characteristic of shear wall structures in tall building.
Sketch as necessary. Provide examples as well.
Describe the difference of proportionate and non-proportionate twisting structure.
B) Briefly explain the main characteristic of wall-frame structures in tall building.
Sketch as necessary. Provide examples as well.
C) Describe the factors affecting the stability of tall building. State the modes
involved in buckling of tall building

a) Sketch the specific energy curves for the following open channel flows:

· A hydraulic jump formed in a rectangular open channel

· Flow through a channel width constriction, where the depths remain subcritical

throughout

· Flow through a sluice gate, where the gate opening is less than the flow’s critical

depth.

· Flow through a combined channel width constriction together with an upward

step, where the depth remains subcritical throughout.

b) Define and explain the following terms

· Critical depth

· The origin or description of the two components of the specific energy for

rectangular channels

· Alternate depths· The origin or description of the two components of the momentum function for rectangular channels