A quarter circle of radius 100 mm lies on Quadrant II of a coordinate plane with
reference radius at the origin. A rectangle is attached to the quarter circle at Quadrant I
with base at the x-axis of width equal to 25 mm and height same as the radius of the
quarter circle. Another rectangle with inverse dimension as the previous is attached to the
quarter circle at Quadrant III.
a. What is the moment of inertia (m4) of the composite area with respect to the x-axis at point O?
b. What is the moment of inertia (m4) of the composite area with respect to the y-axis at point O?
c. What is the polar moment of inertia (m4) of the composite area?
d. What is the centroidal moment of inertia (m4) of the composite area?
e. What is the radius of gyration (mm) of the composite area with respect to its
centroid?

WRITE A VACATION WORK REPORT FOR CIVIL ENGINEERING STUDENT

Choose an environmentally unsustainable industrial practice. Briefly define and explain your chosen unsustainable industrial practice. Then, use three green engineering principles to mitigate the effects of this practice on the environment. For each green engineering principle, you should articulate how each principle can mitigate the environmental effects of the chosen unsustainable practice.

Principles:

1. Designers need to strive to ensure that all material and energy inputs and outputs are as inherently non-hazardous as possible

2. It is better to prevent waste than to treat or clean up waste after it is formed

3. Separation and purification operations should be a component of the design framework

4. System components should be designed to maximise mass, energy and temporal efficiency

5. System components should be output pulled rather than input pushed through the use of energy and materials

6. Embedded entropy and complexity must be viewed as an investment when making design choices on recycle, reuse or beneficial disposition

7. Targeted durability, not immortality, should be a design goal

8. Design for unnecessary capacity or capability should be considered a design flaw. Including ‘one fits all’ solutions

9. Multi-component products should strive for material unification to promote disassemble and value retention (minimise material diversity)

10. Design of processes and systems must include integration and interconnectivity with available energy and material flows

11. Performance metrics include designing for performance in commercial ‘after-life’

12. Design should be based on renewable and readily available inputs

a) In order to meet the industrial and environmental demands and challenges posed by the rapidly developing technological advancement, and promotion of sanity in the country, and in the world at large, it is necessary to create and develop the awareness and interest of Civil Engineering students who are to become the future middle level manpower in the Construction Industry. According to Harris et al (2006:13), quality control is “a set of activities or techniques undertaken to ensure that all quality requirements are being met”. In order to achieve this purpose, processes are monitored. Coin a comprehensive definition of quality control to this effect.

b) Civil Engineering students are introduced to the principles and importance of quality control. Effectiveness of quality control in any given company cannot be quantified by customers. The variability of quality control results often lead to the loss of competitive edge. If this is limitation, then explain.

c) Administration and site work during a contract can be divided into many important areas which require some degree of control, the ultimate responsibility for which lies with the site manager. Examine the various aspects in a building project where quality could be determined.. AN,

one cement presented in this chapter requires procedural steps before cementing on an indirect restoration that are different from the steps required for the other materials discussed. Which material has this unique characteristic, and why are these intitial steps taken for this cement?

1. When a SMALL EGG is dropped onto the piece of 1-inch foam, from which height did the egg break entirely? Select all that apply.
a. When dropped from 1 meter
b. When dropped from 5 meters
c. When dropped from 10 meters
d. Nonsense! the small egg never broke when dropped onto 1-inch foam

2. When a small egg is dropped onto the piece of 1-inch foam, from which height did the egg fracture but not break? select all that apply
a. When dropped from 1 meter
b. When dropped from 5 meters
c. When dropped from 10 meters
d. Nonsense! the small egg never broke when dropped onto 1-inch foam

3. When a LARGE EGG is dropped from a height of 10 meters, upon which landing surface did the egg break entirely? select all that apply.
a. When landing on the hard floor
b. When landing on the 1-inch piece of foam
c. When landing in the box filled with foam pieces
d. Nonsense! the large egg never broke when dropped onto any of the landing surfaces from a height of 10 meters

Background: This interactive involves observing the results of dropping an egg onto a surface. The size of the egg, the height from which it is dropped, and the characteristics of the landing surface can be varied. The effect of variation upon the safety of the egg will be examined. The interactive is based on the impulse-momentum change theorem. The question s target a Interactive ability to reason scientifically.

4. In a two – story building, an exterior column is to be designed for a service dead load of 1000 KN, maximum live load of 1500 KN, dead load moment of 60 KN m, and live load moment of 90 KN m. If the column dimensions will be restricted to 400 mm x 500 mm, fc’ = 27.6 MPa, and fy = 414 MPa, calculate the required column reinforcement

Explain what are the requirements for Retaining Wall Design.

Need explanation and step by step solution and without plagrism

Knowledge acquisition can be performed via conducting different interview techniques. What method would you use to record multiple expert’s view for one particular problem? Explain steps involved and discuss why you would select this method.

A soil has the following properties: pH 8.6; ESP = 18%; CEC = 25 meq/100g; CaCO3 = 2%. (Question 32, Chapter 3 in text), acre furrow slice (afs) = 2 x 106 lbs. soil.

a. Calculate the SAR

b. A test lab recommended 4,300 lbs gypsum/afs. Calculate the final ESP if the grower followed the recommendation.

c. If the grower added elemental S instead of gypsum, calculate the final CaCO3 content

Please refer to the article titled as “Sustainable Construction Excellence for a Better Future in Malaysia, published in The Ingenieur, Vol. 69 January – March 2017 by the Board of Engineers Malaysia. Identify the three main pillars in the principles in sustainable development.

1. what are the right sequences of driving the precast reinforced convrete piles?

2.introduce the procedure of construction of the bored piles with the hole being supported by the mud in detail please

1 point) (Once you have their money, never give it back.) An apartment complex on Ferenginar with 250 units currently has 187 occupants. The current rent for a unit is 935 slips of Gold-Pressed Latinum. The owner of the complex knows from experience that he loses one occupant every time he raises the rent by 2.5 slips of Latinum. Since "profit is its own reward", the owner wants to maximize his profit so he asks for our help, even though he knows that "free advice is seldom cheap". What should be our recommendation for the optimal rent? slips of Gold-Pressed Latinum

Discuss the prevalence of the use of earned-value analysis to track and control costs on construction projects?