For 610 UB 113 Grade 300 plus universal beam with full lateral restrain to the critical flange maximum design moment capacity M* about the x-axis

Q1. Gombo Water and Sanitation Company Limited has been having a problem with regards to the operation of
the company which has caused the organization not to satisfy the needs of the customers due to frequent
breakdown of water and sewerage pumps, residents receiving brownish water and not addressing customer
complaints of high bills, residents not receiving adequate supply of water and leakages in the distribution.
The other problem has been frequent sewerage blockages which results in direct discharge of raw sewerage
into the Mulungushi River hence affecting the ecological process as the main sewerage pipe crosses the
river. In May this year, the company was given a fine by Environmental Management Agency of 50,000
Zambian Kwacha for discharging raw sewerage in the Mulungushi River due to non-function of the
Biological filters. You have been engaged as a consultant by the Government of the Republic of Zambia to
provide solutions to the challenges the utility is facing. What professional advice would you give?

You work for a surveying company. Main roads WA has contracted your company to set out the centre line of a new highway to be constructed. You have found the following video online about a robot that can do the work more effectively:[10 marks]

https://www.youtube.com/watch?v=ZeTJBxgSjEs

Write a one-page report to convince your line manager of the benefits of using the robot for line marking compared to traditional surveying methods.Use scholarly sources to support your argument.In your report address the following:

1. Accuracy and precision

2. Ease of use

3. Productivity

4. Cost per point

Mechanistically, what is the difference between Nabarro-Herring and Coble creep

A rigid pavement is to be designed to provide a service life of 20 years and has an initial PSI of 4.4 and a TSI of 2.5. The modulus of subgrade reaction is determined to be 300 lb/in3. For design, the daily car, pickup truck, and light van traffic is 30,000; and the daily truck traffic consists of 300 passes of single-unit trucks with single and tandem axles, and 400 passes of tractor semi-trailer trucks with single, tandem, and triple axles. The weights for cars, pickups, light vans is two -2000 lb single axles, for single unit trucks are 10,000 lb steering, single axle and 22,000 lb drive, tandem axle and for tractor semi-trailer trucksare 12000 lb steering, single axle, 18,000-lb drive, tandem axle and 50,000 lb, trailer, triple axle.Reliability is 95%, the overall standard deviation is 0.45, the concrete modulus of elasticity is 4.5 million ln/in2, the concrete’s modulus of rupture is 900 lb/in2, the load transfer coefficient is 3.2, the drainage coefficient is 1.0. Determine the required slab thickness.

1. What types of economic process applicate for firing process in tile and brick ?

4. A 1000 litrecontainmenttankcatches the outflowfrom a processing apparatus whichhas 800 litresof water with2 gof chemical agentdissolved in it.  Additional supplycomesinto the tank at 3 litres/hr containing5 g/litreof the chemical agent. The solution leaves thecontainmenttank at 3 litres/hr. When the amount of chemical agentin the containment tankreaches 500 g, no more supplyis allowed to enter the system. Instead,fresh water is input intothe tank at 2 litres/hr; andat the same time,the outflow is increased to 4 litres/hr.  How much chemical agentis heldin thecontainmenttankat any time t.Assume all liquids are well-mixed.(10marks

Calculate the field weights of the ingredients for 0.039 m3 of concrete by using ACI Method of Mix Design. Job specifications dictate the followings:  

Cement content: 300 kg/m3

w/c: 0.57 (by weight, from the strength point of view)

w/c: 0.53 (by weight, from durability point of view)

Fine Aggregate (SSD)/Coarse Aggregate (SSD)=0.45 (by weight)

Air Content: 1,30 %  

For Fine Aggregate (Crushed): SSD Bulk Specific Gravity: 2.47, Total Moisture: 5,0 % and Absorption Aggregate: 2,7 %.  

For Coarse Aggregate (Crushed): SSD Bulk Specific Gravity: 2.60, Absorption Capacity: 2.0 %, Total Moisture: 1.9 % and Dry Rodded Unit Weight: 1470 kg/m3.

Cement: Sulphate Resisting Cement, Specific Gravity: 3.17

FIBER REINFORCED CONCRETE

Explain the use of the following fibers:

a) Steel

b) Glass

c) Natural

d) Polymer

e) Asbestos

f) Carbon

A 276 m equal-tangent sag vertical curve has the PVC at station 3 + 700.000 and elevation 321 m. The initial grade is -3.5% and the final grade is +0.5%. Determine the stationing and elevation of the PVI, the PVT, and the lowest point on the curve.

Write four general principles to be observed while laying damp proof course.

A machine follow Carnot which is working between the temperatures TL = 45.9 0
C and
TH = 698.7 0
C. The engine performs 1423 J of work each cycle which takes 0.32 sec.
a. What is the efficiency of this machine?
b. What is the average power of this machine?
c. How much heat is extracted from the high-T reservoir each cycle?
d. Explain the loss of power and how to optimize it?

A residential building was affected by the patches on all the walls, leakages in the corner of the building and uneven floors. Explain briefly the four methods to control the above problem mention in the building.