1.What are the criteria for classifying a confined space as a permit required confined space? Include the citation for the OSHA standard where you found the answer to the question.
In: Civil Engineering
a) differentiate quality from quality assurance.
b) Suppliers should be chosen with the sole aim of maximum value for the company. Courtesy and equitable dealings with sales representatives create goodwill and establish. State and explain six categories of electronic commerce business models that could be used.
c) If standards are to be maintained in the Industry it is essential that those associated with construction must be provided with knowledge and mental skills. Suitable education to this end is therefore necessary and is divided into two parts; Technical Education and Practical Education. Project management is one aspect of Technical Education. For that matter, discuss the relevance of project management and narrow down to four importance of it as a profession.
In: Civil Engineering
In comparing probability distributions, which of the following statements is TRUE?
Select one:
1. The geometric and Poisson distributions have the
lack of memory property.
2. The exponential and Poisson distributions are interchangeable
because they have the exact same
random variable.
3. The geometric and negative binomial distributions both have a random number of trials.
4. The uniform and normal distributions have the same distribution shapes.
5. The Poisson distribution is the limiting form of the negative binomial distribution.
In: Civil Engineering
In: Civil Engineering
Do you believe fuel cells will be the future of automobiles and small heat engines? Why or Why not? If not, what do you believe is the future?
In: Civil Engineering
Insight on:
a) Highway drainage and Slope protection Design
b) Highway Pavement Design, Materials and Construction & Equipment Utilization
In: Civil Engineering
Explain briefly the importance of serviceability limit state in the design stage for the structures
In: Civil Engineering
In: Civil Engineering
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?
In: Civil Engineering
WRITE A VACATION WORK REPORT FOR CIVIL ENGINEERING STUDENT
In: Civil Engineering
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:
Designers need to strive to ensure that all material and energy inputs and outputs are as inherently non-hazardous as possible
It is better to prevent waste than to treat or clean up waste after it is formed
Separation and purification operations should be a component of the design framework
System components should be designed to maximise mass, energy and temporal efficiency
System components should be output pulled rather than input pushed through the use of energy and materials
Embedded entropy and complexity must be viewed as an investment when making design choices on recycle, reuse or beneficial disposition
Targeted durability, not immortality, should be a design goal
Design for unnecessary capacity or capability should be considered a design flaw. Including ‘one fits all’ solutions
Multi-component products should strive for material unification to promote disassemble and value retention (minimise material diversity)
Design of processes and systems must include integration and interconnectivity with available energy and material flows
Performance metrics include designing for performance in commercial ‘after-life’
Design should be based on renewable and readily available inputs
In: Civil Engineering
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,
In: Civil Engineering
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?
In: Civil Engineering
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.
In: Civil Engineering
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
In: Civil Engineering