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Engineering and Construction Lab Report

Industrial process control
The second experiment concerned the proportional control where the ability of the controller to maintain optimal levels with variations in measurements was observed. The third experiment involved the introduction of an external stressor to the system and then observing the response of ths sytem to the external stressor. The fourth experiment involved the application of several fundamental changes that the system might experience and observing the stability and response of the system to the
Pages: 7 (1750 words), Lab Report
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Steel Report
Lastly, specimen RW11.9 was cold robbed riled wire which was also made from middle steel material. The surface was relatively smoother and malleable but the specimen was easier to bend than specimenR12. In terms of the geometry of the specimens, N12 had a diameter of 12mm, length of 500mm and a cross sectional area of 255mm2 . Specimen R12 was also 12mm in diameter, 500mm in length and had a cross sectional area of 113.9 was 11.9mm in length, 12mm in diameter and the cross sectional area was
Pages: 5 (1250 words), Lab Report
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Impact of a water Jet laboratory
This was part one of the experiment in which one had to determine the Freezing Temperature of Pure Lauric Acid. After this part, the next procedure was to add about 300 mL of tap water with a temperature of 20–25°C to a 400 mL beaker and then placing the beaker on the base of the ring stand. The utility clamp was then used to obtain a test tube containing hot, melted lauric acid from the instructor while making sure the utility clamp is fastened. Step six involved inserting the Temperature
Pages: 6 (1500 words), Lab Report
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Jominy Hardenability test
Hardness using the Rockwell scale along the cooled bar length, and comparing the curves of experimental hardenability with the curves of the published hardenability.Hardenability entails the extent to which, a substance or material is hardened following a complete process of heat treatment. As widely cited, Hardenability is measured using the measurements of length. It serves the purpose of indicating how deep inside a material of given hardness can be obtained. This is one such vital property
Pages: 7 (1750 words), Lab Report
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Lab#2 concrete mix design and compression tests
The aggregates used must be well graded to minimize air voids in the concrete matrix.Generally, concrete mix designs are currently being over-designed for the fear of production of results that will not meet the minimum strength criteria specified by the engineer concerned. There is therefore need for analysis of concrete compressive strength variance and understanding of the criteria for proper concrete mix designs suitable for various applications.Concrete is a composite engineering material
Pages: 10 (2500 words), Lab Report
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Construction development in China
There are a lot of tourist centers in urban districts and suburbs of Shanghai, which form many tourist areas, tourist lines and special-interest tourist items. (Shanghai National Information, 2013). Throughout the past century, Shanghai has had numerous name tags attached to it; like "Paris of the Orient" and "Pearl of China". Images of Shanghai more than any other Chinese city, are bountiful in the west. A visit here therefore, is naturally tainted to some extent, with a preconception of how
Pages: 15 (3750 words), Lab Report
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Measuring Forces in Truss Members Using Strain Gages
It is important to determine the magnitude of force on every structural member and the direction of the force, which aids in designing various structural members so that they can withstand forces in them. This determination is also important in coming up with and selecting the best structural design that promises best economy in terms of the number of elements and dimensions of each element.There are two methods of analyzing forces in structural members, which include the method of joints and
Pages: 10 (2500 words), Lab Report
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Determination of principle stress
In this regard, the maximum normal stress was found to be 52.5 MPa, minimum normal stress was found to be -18.5 MPa, principle angle 34.2 degrees, Maximum shear stress was 35.5 MPa, Maximum shear angle 10.8 degrees, and angle was 79.The Obtained results show that the shear stress is positive and the normal stress is equally positive. This means that the normal stress is position outside the action plane and the shear stress is rotated clockwise in the point to be considered. Normal stress
Pages: 5 (1250 words), Lab Report
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Design and analysis (aerodynamics) of the new nose (2nd design) for open wheel climb race car in by using CFD (computational fluid dynamics). [1750 words]
At the higher nose of the nosecone, under tray CL increase but front wings CL decrease. This operation of the machine makes it possible for any change in ride height, the body of full car CL will change. At the same time, when the front wing CL increases, the under tray CL decreases. Quantitatively, from the optimization results the difference between maximum front wing CL and minimum CL reached was about 4.5% and the difference between under tray CL and minimum CL reached to 6.The simulations
Pages: 7 (1750 words), Lab Report
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Electric circuits and devices prototyping
Since a BJT is three terminal device, it can be connected in three possible ways with one terminal being common for both input and output. These three configurations include common base, common collector and common emitter configurations. The common base configuration has high voltage gain with no current gain while the common emitter has gain for both current and voltage. The common emitter configuration has a current gain with no voltage gain.This is a voltage-controlled device and has
Pages: 7 (1750 words), Lab Report
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Taping over uneven ground
The plumb bobs present in the image are those of field engineering where they have to be sharp to the point and this is critical to ensure that the centre of gravity remains high on the bob to eliminate false results.The above image is that containing plain marking flags. These flags are very important and not only in this kind of project but for many other engineering endeavors. These flags assist the surveyor or other people that are assisting an engineer in understanding the actual
Pages: 4 (1000 words), Lab Report
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Taping over uneven ground
The plumb bobs present in the image are those of field engineering where they have to be sharp to the point and this is critical to ensure that the centre of gravity remains high on the bob to eliminate false results.The above image is that containing plain marking flags. These flags are very important and not only in this kind of project but for many other engineering endeavors. These flags assist the surveyor or other people that are assisting an engineer in understanding the actual
Pages: 4 (1000 words), Lab Report
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Physics lab report
A positive different in (x-x0) indicates that the force is negative x direction. A negative (x-x0) implies a positive force direction.Given a displacement initially A = x-x0, F = -kA, and accelerates towards the negative x-axis towards equilibrium; x = x0 where the restoring force is zero. It passes beyond x0 to the opposite direction and arrives with x-x0 = -A at zero velocity and it is pulled back. This forth and back motion goes on and results to oscillations. Without friction, kinetic
Pages: 5 (1250 words), Lab Report
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Electrical circuits
Results of the values of component rating have been documented and analyzed. The discussion and analysis section gives view about the results. RLC response characteristics in different connection conditions have been put out expounding on the effects of loading and use of active and passive devices in electrical circuits. They achieve application in designing of filters and communication equipment.Signal systems make use of electronic components in their application. The objective in designing
Pages: 15 (3750 words), Lab Report
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Refrigeration Laboratory
The inefficient motor should also be replaced with an efficient one so as to save energy. Friction reduction measures are very important. Lubricant and oil should be smeared on the Inner lining of the walls of the suction pipes to reduce friction between the fluids and the walls.Man-made chlorine, especially Chlorofluorocarbons depletes the ozone layer making it permeable to dangerous ultra violet rays reach the earth. It was due this concern that the Montreal Protocol, an international
Pages: 8 (2000 words), Lab Report
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Designing and implementing a precision rectifier circuits
Of rectification is the diode .This type of rectification helps in converting the whole incoming /input waveform to output having a constant polarity which may be a negative or a positive .in the process it converts two polarities of incoming. waveform to pulsating direct current and produces a higher voltage output voltage .the requirement for this rectification are; center tapped transformer or a four diode in abridge arrangement.A full wave rectification is composed of a four diode, as
Pages: 5 (1250 words), Lab Report
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Measurement and instruments
The features include low current consumption, 3.5V to 24V DC operation voltage, open-Collector pre-driver, wide operating voltage range, temperature compensation, 50mA maximum sinking output current and reverse polarity protection. This is the Hall Effect named after Edwin Hall who discovered this in 1879. The principle which was used was the basic physical principle underlying the Hall Effect being Lorentz force. To generate a potential difference across the device the magnetic flux lines
Pages: 6 (1500 words), Lab Report
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Learning from Disaster
The change was effected, and the contract’s Shop Drawing 30 and Erection E-3 were also changed.A few days later, 42 new shop drawings were sent to G., which included the revised drawings. Ten days later, the pictures were returned to Havens, complete with the stamp of Gillum’s Engineering review seal that further authorized the construction. The fabricator had used the guidelines from the American Institute of Steel Construction (AISC) standards, for the original design of the
Pages: 8 (2000 words), Lab Report
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Cooling Tower
The cooling process is carried via reduction or taking away of hot liquid from the plant’s condenser, and then directing or transferring the heat from the hot liquid to the atmosphere; mostly water is utilized as the thermal heat sink.The load tank has two electrical heaters for the simulation of the cooling load for the power plant. Heated water in the load tank is pumped via water flow meter and control valve to the water distributing system at the top.Distilled water is used when filling
Pages: 11 (2750 words), Lab Report
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Solar cell
Therefore, the contact grid should be made such that it allows more photons o penetrate and the same time it should collect more electrons.On hitting the Silicon surface, the energy of the photon transfer to the valence electron in the n-type. The energy makes the valence electron escape its orbit leaving a hole in its place. In the n-type, the freed electrons are known as majority carriers. The holes left behind are called minority carriers. However, its opposite in the p-type. The holes are
Pages: 4 (1000 words), Lab Report
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