Immediately after a fill is placed, the excess pore water pressure in an underlying saturated clay is equal to:
a. 0
b. 100 lb/ft2
c. The hydrostatic pore water pressure
d. The unit weight of the fill times its thickness
e. Half of Δσ_z
In: Civil Engineering
The study of the mechanics of solids is a central object in the formation of various engineering modalities. And it is not for nothing that it is mandatory discipline in almost all engineering. Almost every concrete human achievement (not just intellectual or virtual), be it a building, a machine, equipment or even a (plastic) work of art, needs a structural support, something that can perform its function mechanically .... (José Roberto de F Arruda).
Given the great importance of solid mechanics in Engineering, cite and comment on 3 examples of the application of Solid Mechanics in our daily lives, and their importance in solving engineering problems.
In: Civil Engineering
Case study: TBS Shipping
1. Assuming the MV Hamburg Pearl has a DWT of 44,500 MT, an
empty weight of 6,500 MT, and a crew, stores, and fuel weight of
1,000 MT, estimate how much of the following will fit into the
cargo holds, without exceeding the ship's volume or weight
limits:
Sunflower seeds: Blank 1 MT
Cobalt: Blank 2 MT
Peanuts (unshelled): Blank 3 MT
To answer this, you will need to look up standard values for stowage factors and calculate the answers. If you find the stowage factor is a range, use a value in the center of that range.
2. Why do you think the problem with the wood pellets happened without being caught ahead of time? Use your own words to explain the basic reason in a sentence or two.
3. What would you do to protect against this problem happening again?
In: Civil Engineering
The wastewater treatment plant will also treat wastewater originating from the industrial activity of textile mills in the future. proposed and describe appropriate unit processes that can be added to the plant.
In: Civil Engineering
Describe how the term “E” waste is related to this document. Are we potentially curing one environmental problem and creating another?
In: Civil Engineering
During a chemical treatment of wastewater the reaction rate found to be 20.8 /minutes when the temperature of wastewater was 29.4°C. What will be the reaction rate when the same reaction is performed in the evening when temperature reduced to Y °C. The value of temperature coefficient is 1.130
NaOH + FeCl3 > Fe(OH)3 + NaCl
In: Civil Engineering
Morrison claims that the building of the Middlesex Canal can be seen in one of two ways: (1) "a continual and almost systematic botching of a very simple process"; or (2) "as an exercise rather more remarkable than [landing a man on the moon]" (Page 29). Which interpretation do you consider more accurate, and why? Use three examples to explain your argument.
In: Civil Engineering
what is a runoff coefficient in hydrology and what is hydrologic abstraction?
what is their use and why do they matter in the engineering world?
What are the primary strengths or weaknesses of the concept?
What would have made it easier for you to understand the method or concept?
In: Civil Engineering
What causes surface scaling? What are the precautionary measures for surface scaling?
In: Civil Engineering
In: Civil Engineering
Rod OA rotates counterclockwise with a constant angular velocity of = 5 rad/s. The double collar B is pin connected together such that one collar slides over the rotating rod and the other slides over the horizontal curved rod, of which the shape is described by the equation r = 1.5(2 - cos θ) ft. If both collars weigh 0.75 lb, determine the normal force which the curved rod exerts on one collar at the instant θ = 120o. Neglect friction.
In: Civil Engineering
In: Civil Engineering
What is the composition of the building? What is the role?
What are the principles of building design?
In: Civil Engineering
Design an isolated footing with one side limited to 7 ft for the following: 1 ft x 1 ft edge column, axial loads PD = 130 kip and PL = 155 kip, fc’ = 3,000 psi, fy = 60,000 psi, qa = 4 ksf, and a distance from top of backfill to bottom of footing is 4 ft. Assume the soil density is 100 pcf. For the column, fc’ = 5,000 psi. Sketch your design.
In: Civil Engineering
1- William F. May says, “[The Professional] had better be virtuous. Few may be in a position to discredit him. The knowledge explosion is also an ignorance explosion; if knowledge is power, then ignorance is powerlessness.” Explain what May is saying here. Present an example of how this might apply to engineers.?
2- What is the method of line-drawing? An example will be useful in explaining this.?
In: Civil Engineering