2021 BE 1251 Exam 1 Written_Version 1
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Louisiana State University *
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Mechanical Engineering
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2021 BE 1251 Exam 1 Version 1
Name ______________________
Type in your name above, and your short answers in the spaces provided below. When finished, save as a
PDF (.pdf) and upload to Moodle in the 10/25 to 10/29 section. 5 points each for 35 total points.
1)
What is engineering? Please define engineering stating the three main points or focuses of engineers.
2)
What are any two of the five cornerstones of personal ethical behavior?
3)
A House of Quality is used to relate the importance of engineering characteristics of a design to the:
a.
Supervisor Ideas
b.
Quantitative Attributes
c.
Gantt Chart
d.
Customer Attributes
4)
Which phase of the Engineering Design Method would include looking up information through patents, the internet, or trade journals?
5)
_____________ in use accommodates a wide range of individual preferences and abilities as one of the Seven Principles of University Design
Excel Practical Problem:
6-7) Download the file “2021ExamSensorDataset.xlsx” from Moodle, which includes voltage data from two sensors detecting an analyte’s concentration. For the first 7 seconds of each trial, there was no analyte
introduced; what are the average and standard deviations of sensor voltage over the time were analyte was
detected? Sensor
A
B
Average Voltage (mV)
Standard Deviation (mV)
Next, create a plot showing the relationship between all time points of sensor output and analyte concentration, being sure to label your chart and axes. Include the multiple data points for zero analyte concentration in your plot. Add trendlines for both sensor A and B, and show the equations and R-
squared values with appropriate significant figures so that they are clearly visible. Paste the chart below in this Word document. Which sensor has a response that is more linear with concentration? How did you determine this?
More linear sensor: ______
This can be concluded by:
For Sensor A, what will the voltage be at 30 ppm concentration?
(Paste your chart below.)
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Related Questions
I need answers for problems 13, 14, and 15 pertaining to the print provided.
NOTE: If you refuse to answers all 3 parts and insist on wasting my question by breaking down 1 simple question into 3 parts, then just leave it for someone else to answer. Thank you.
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I need answers to questions 13, 14, and 15 pertaining to the print provided.
Note: A tutor keeps putting 1 question into 3 parts and wasted so many of my questions. Never had a issue before until now, please allow a different tutor to answer because I was told I am allowed 3 of these questions.
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I need help solving these 3 simple parts, if you can not answer all 3 parts then please leave it for another tutor, thank you.
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please help solve A-F. thank you
You are an engineer working on a project and your prototype has failed prematurely. You question whether or not a key component of the prototype was manufactured with the correct material. There are two way to check for the material properties. The first way is to have a material certification done to confirm the exact material composition. This will take some time. The second method to confirm the material properties is to make an ASTM test sample and test for the material properties. This tensile test was completed on a test sample with an initial diameter of .501” and an initial length of 2”. The Load-Deflection data for this tensile test is below. Use this data to answer the first set of questions on the Final Exam in eLearning. A. Determine the Ultimate Tensile Strength B. Determine the 0.2% Offset Yield Strength C. Determine the value of the Proportional Limit D. Determine the Modulus of Elasticity E. Determine the Strain at Yield F. Calculate %…
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hello i hope you are fineI need your help by solving the question below. Please, please, please quickly, because I am studying now and I have exams in the coming days, so I need to do this homework in order to understand the study material and I do not have much time. I need to solve within half an hour or a little more.
It's kind of fill in the blank please give me the best word possible
the question is :
1-The graphitization of cast iron effected by ………………………..?
2-The hardness test techniques differs among themselves according to …………………….?
3-The main advantages of grey cast iron are ………………………….?
4-The solid materials deform by ……………………., while , liquids deform by ………………..?
5-The main rules that must be taken in order to increasing the accuracy of hardness test, are ………………..?
6-Nodular iron more ductile than grey iron, because …………..?…
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I need parts 8, 9, and 10 answered. Number 1 is an example of how it should be answered.
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The major diameter (100 mm) of this part is interrupted by a flat surface on top. Is an auxiliary view required to show the true size and shape of that flat surface? (Multiple Choice)a. Yesb. No
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The class I'm taking is physics for scientists and engineers!
**** I need help with part D only*****
Can you please write out the solution and not type out the solution? I had to reask this question because the last tutor typed out the solution and it was very hard for me to follow . Please and thank you for the special request.
I have attached the problem. Please view attachment before answering. Thank you!
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Don't use chatgpt will upvote
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heck my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion.
Return to question
Required information
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
The loading for a beam is as shown in the figure, where F1= 19 lb, F2= 20 lb, F3= 35 lb, F4= 2O Ib, and F5 = 15 lb.
F1
F2
F3
F4
F5
O B
6 in 8 in.-8 in. -6 in.-
Determine the reaction at A. (You must provide an answer before moving to the next part.)
The reaction at A is
76 c 8 Ib
raw
ill
10:45 PM
ENG
69°F Mostly cloudy
10/6/2021
pe here to search
近
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I need answers to questions 13, 14, and 15 pertaining to the print provided.
Note: A tutor keeps putting 1 question into 3 parts and wasted so many of my questions. Never had a issue before until now, please allow a different tutor to answer because I was told I am allowed 3 of these questions.
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Please show work in a handwritten format.
Don't use chatgpt.
Mechanics of materials/design.
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I need these three parts answered (Multiple Choice). If you can not answer all three parts, please leave it for another tutor to answer. Thank you.
What size paper was used for the original version of this print? (Multiple Choice)ABCD
The two views near the bottom of the print are called detail views. Which one of theviews above (left side, front, or right side) shows the same geometry, but at the normal 1:1scale? (Multiple Choice)a. left sideb. frontc. right side
What size paper was used for the original version of this print? (Multiple Choice)ABCD
The two views near the bottom of the print are called detail views. Which one of theviews above (left side, front, or right side) shows the same geometry, but at the normal 1:1scale? (Multiple Choice)a. left sideb. frontc. right side
The major diameter (100 mm) of this part is interrupted by a flat surface on top. Is an auxiliary view required to show the true size and shape of that flat surface? (Multiple Choice)a. Yesb. No
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https://www.bartleby.com/questions-and-answers/it-vivch-print-reading-for-industry-228-class-date-name-review-activity-112-for-each-local-note-or-c/cadc3f7b-2c2f-4471-842b-5a84bf505857
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its
beauty.
A).so
B).because of
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D).because
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a.)in addition
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Qin Shi Huang ordered an army to be built so that his palace would be protected.
Emperor
a.)add
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c.)plus
d.)in addition
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read ancient
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a.)thus
b.)as a result
c.)in order to
d.)therefore
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PRINCIPLES OF COMPUTER AIDED ENGINEERING – MENG303
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question in the picture
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ACTIVITY 2 (LECTURE)
SCI 2
PHYSICS FOR ENGINEERS
I.
Answer the following and write your answers on a piece of paper. Upload your
work in pdf or jpeg file (portrait). Express your final answers in two decimal
places.
1. A turtle is crawling along a straight line. Its distance from the origin at any instant
is given by the equation x = 8t – 3t², where x is in centimeters and t is in
seconds. Find (a) the average velocity of the body in the interval from t = Os to t =
1s (1pt) and (b) the instantaneous velocity at t = 2.5s. (1pt)
2. A cheetah is chasing a deer at velocity v = 1.8 t³ – 12t where in v is in meters
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3. An antelope moving with constant acceleration covers the distance between two
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4. A ball is…
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Note/I don't want it handwritten
Develop a list of values that you think are important to being a successful engineer. This list will probably include things such as engineering knowledge andtechnical skills that are not ethical in nature. For the values that are ethical,think about where these values come from and how you came to hold them
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help! please write the correct answer. no long explanation needed! upvote will be given!
Mechanics of Deformable Bodies
A closed cylindrical vessel contains a fluid pressure of P (Mpa). The cylinder has an inside diameter, d (m) and a wall thickness, t (mm) made of steel alloy with yield strength of 340 Mpa. What is the maximum allowable pressure (MPa) if d = 2.50 m and t = 31.8 mm using a factor of safety of 2.5? (2 decimal places)
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Question 2
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Please double check before rejecting this question. If it needs to be rejected, please explain why as I cannot see how this is a breach of the honor code.
This is a questions from the previous year's exam at my university in Engineering Science. I have submitted a solution given to us for study purposes as proof that I will not be graded on this assessment.
In this solution, the formula (2gh)1/2 is used to find the solution, but I am on familliar with Bernoulli's Principle (P=1/2pv^2+pgh), and I was not able to find a solution using this. My solution incurred an error when I found that I had two unkown variables left that I could not break down in any meaningful way. (Velocity being the desired variable, Pressure being the problematic variable). Pressure = Force x Area, but I don't know enough about the dimensions of the tank or tap to be able to understand this.
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Related Questions
- I need answers for problems 13, 14, and 15 pertaining to the print provided. NOTE: If you refuse to answers all 3 parts and insist on wasting my question by breaking down 1 simple question into 3 parts, then just leave it for someone else to answer. Thank you.arrow_forwardI need answers to questions 13, 14, and 15 pertaining to the print provided. Note: A tutor keeps putting 1 question into 3 parts and wasted so many of my questions. Never had a issue before until now, please allow a different tutor to answer because I was told I am allowed 3 of these questions.arrow_forwardI need help solving these 3 simple parts, if you can not answer all 3 parts then please leave it for another tutor, thank you.arrow_forward
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