me2331 study Flashcards
Which of the following are examples of engineering work products? (select all that apply)
a) cubicle seating charts
b) analysis reports
c) cafeteria lunch menu
d) engineering drawings
e) CAD models
b. analysis reports
d. engineering drawings
e. CAD models
Which of the following details must be present to properly identify a controlled document? (select all that apply)
a) Unique ID number
b) Company Logo
c) Special Blue Paper color
d) Description
e) Version (revision) number
a) Unique ID number
d) Description
e) Version (revision) number
In order to effectively control work products from a configuration standpoint, what functions must be in place? (select all that apply)
a. An approval process for release
b. A rule that requires all part numbers to start with the letter “W”
c. A means to fully identify each work product
d. A process for handling changes
a. An approval process for release
c. A means to fully identify each work product
d. A process for handling changes
Since company procedures are not delivered to a customer, they do not have to be configuration controlled.
(true or false)
false
Version control keeps track of changes that are made to a controlled document and is often presented in a table.
(true or false)
true
when making a change to a design, the design engineer can either 1._______ or 2._______
1. select from the following
a. erase signatures
b. roll the revision
c. change the description
d. remove BOM
- select from the following
a. just make the design change without doing anything else
b. select a different paper size
c. get a new drawing/part number
- b. roll the revision
- c. get a new drawing/part number
What criteria should be considered when deciding if an engineering change is major or minor?
a. Height, Length, and Width
b. Form, Fit, and Function
c. Fault, Factor, and Feedback
d. Mass, Volume, and Energy
b. Form, Fit, and Function
If an engineering change is determined to be major, what is the proper way to conduct the change?
a. Roll the revision
b. Create a new part number
c. Change the description
d. The drawing can be changed directly with no change to the revision or part number
b. Create a new part number
A go-kart design engineer needs to change the pattern of the wheel studs on the hub drawing to accommodate a design change to larger wheels. How should the hub drawing be changed?
a. Roll the revision of the hub
b. It doesn’t matter; either is ok
c. Get a new part number for the hub
d. Make the change directly without changing the revision or part number
c. Get a new part number for the hub
Which of the following is a quality to identify a part?
a. drawing
b. BOM
c. part number
d. CAD
c. part number
With regard to product structure, which of the following elements may be a child of a ‘part’ element? (select all that apply)
a. material
b. other parts
c. assemblies
d. hardware/COTS
a. material
d. hardware/COTS
With regard to product structure, which of the following elements may be a child of a ‘hardware/COTS’ element? (select all that apply)
a. material
b. parts
c. Other hardware/COTS elements
d. Hardware/COTS elements cannot have anything under them
d. Hardware/COTS elements cannot have anything under them
A Bill of Materials (BOM) is a section of the product structure of an end item pertaining to a specific drawing.
(true or false)
true
Which of the following is the best way to describe design?
a. The art of sequential guessing at solutions until an effective one is identified
b. A process to bring a solution from an abstract to concrete state
c. A process to move a concrete solution to a more abstract state
d. A method of bookeeping with rows and columns representing date and cost values
b. A process to bring a solution from an abstract to concrete state
The phrase “designing the thing right” is associated with which of the following aspects of design?
a. The intent of the design and validation of the solution that shows the solution accomplishes the customer’s mission
b. Using ergonomic standing desks and adjustable chairs during design
c. The details of the design and verification that the solution was formulated correctly
d. Using the proper company logos and stationary for drawings
c. The details of the design and verification that the solution was formulated correctly
The phrase “designing the right thing” is associated with which of the following aspects of design?
a. Using the proper company logos and stationary for drawings
b. Using only renewable sources of electricity for the CAD workstations
c. The details of the design and verification that the solution was formulated correctly
d. The intent of the design and validation of the solution that shows the solution accomplishes the customer’s mission
d. The intent of the design and validation of the solution that shows the solution accomplishes the customer’s mission
Design is something that’s done on the fly without a plan. There doesn’t really need to be a process for it as long as we arrive at some kind of solution that works.
(true or false)
false
Having a process for design is important because _________ of a project’s budget is committed by the conclusion of conceptual design.
a. About 70%
b. None
c. About 25%
d. all
a. About 70%
Number the product lifecycle stages in proper order starting with 1 as the beginning.
- Manufacture
- Disposal
- Idea
- Product Design
- Operation and Maintenance
3 manufacture
5 disposal
1 idea
2 product design
4 operation and maintenance
Which of the following describes the proper order of activities in the left side of the V-diagram?
a. Concept Design, Detail Design, Planning, Preliminary Design, Requirements,
b. Concept Design, Planning, Preliminary Design, Requirements, Detail Design
c. Concept Design, Preliminary Design, Planning, Requirements, Detail Design
d. Planning, Requirements, Conceptual Design, Preliminary Design, Detail Design
d. Planning, Requirements, Conceptual Design, Preliminary Design, Detail Design
Which of the following is an example of a design input?
a. Engineering Drawings
b. Customer Requirements
c. CAD Models
d. PowerPoint Engineering Sketches
b. Customer Requirements
One of the most important criteria for a successful PDR is to demonstrate sufficient design maturity that shows how the design will work and function via the CAD models.
(T or F)
true
To successfully complete PDR, it is required to have all final analysis reports complete.
(T or F)
F
At PDR, there will be CAD models that show how the design will function/operate.
(T or F)
T
Which of the following is another design review?
a. System Variability Review (SVR)
b. Production Timing Review (PTR)
c. Detail Design Review (DDR)
d. Test Readiness Review (TRR)
d. Test Readiness Review (TRR)
The Purpose of a device or product tells us what about it?
a. What it’s made out of
b. What it does
c. How it works
d. What it is for
d. What it is for
The Function of a device or product tells us what about it?
a. What it looks like
b. What it does
c. What it is for
d. How it works
b. What it does
The Form of a device or product tells us what about it?
a. What it’s for
b. How it works
c. What it does
d. What it’s made out of
d. What it’s made out of
Consider the device shown. Which of the following best describes the Purpose of this device?
(the image is a weedwacker)
a. The device is made from metal and plastic. It is about 6’Lx1’Wx1.5’D overall
b. The device uses rapidly rotated plastic filaments to cut unwanted plant growth
c. The device removes unwanted plant growth
d. The device cuts unwanted plant growth
c. The device removes unwanted plant growth
Considering the device in the previous question. Review the following statement and indicate which of the following characteristics is being described.
“The device uses rapidly rotated plastic filaments to cut unwanted plant growth.”
a. Purpose
b. Function
c. Operation
d. Form
c. Operation
The behavior of a product is the same as the theoretical function of the product.
(T or F)
F
When speaking about the performance of a product, which 2 characteristics are being compared?
a. Speed and Precision
b. Action and Reaction
c. Look and Feel
d. Function and Behavior
d. Function and Behavior
Consider the baseball bat shown below. When used as intended, which simple machine is in operation?
a. 4th Class Lever
b. 1st Class Lever
c. 2nd Class Lever
d. 3rd Class Lever
d. 3rd Class Lever
Consider the pully arrangement shown. What is the ideal mechanical advantage for this configuration?
(the configuration is a pulley with a weight hanging from the middle of it, one end of the rope is fixed, and the other is being pulled up by someone)
a. 1
b. 2
c. 0
d. 0.1
b. 2
Consider the pulley arrangement shown. What is the ideal mechanical advantage for this configuration?
(the configuration is a pulley with a weight hanging from the middle of it, one end of the rope is fixed, and the other is attached to another pulley where the end of the rope is being pulled down)
a. 2
b. 3
c. 1
d. 0.5
a. 2
A truck is being loaded with heavy cargo boxes. To aid in loading the truck, a ramp is used as shown below. The ramp length is 9 ft. The height from the ground to the truck deck is 4.5 ft. What is the ideal mechanical advantage of using this arrangement?
a. 1
b. 2
c. 0.5
d. 4
b. 2
A truck is being loaded with heavy cargo boxes. To aid in loading the truck, a ramp is used as shown below. The ramp length is 9 ft. The height from the ground to the truck deck is 4.5 ft. Assume each box weighs 400 pounds. Assuming ideal operation, what effort force would be required to move one of the boxes up the ramp?
a. 200 pounds
b. 400 pounds
c. 800 pounds
d. 100 pounds
a. 200 pounds
Match the word with the proper definition. A minimum level of adequacy for structures, machines and testing. Often related to user and bystander safety.
a. codes (regulations)
b. guidelines
c. standards
d. tribal knowledge
a. codes (regulations)
Match the word with the proper definition. An established norm for uniform engineering processes, sizing, and component selection.
a. codes (regulations)
b. guidelines
c. standards
d. tribal knowledge
c. standards
Design codes and regulations carry the authority of law whereas design standards do not.
(T or F)
T
A designer is designing a new plug-in electric blender for home consumer use. Which of the following codes would likely direct certain aspects of the design? (select all that apply)
a. A requirement that the company’s logo only be affixed to the top of the device for maximum visibility
b. Proper insulation of electrical leads and contacts to prevent electric shock
c. Since it’s for consumer use, there’s likely no codes that need to be followed
d. Requirement to include a safety switch to prevent unintended operation of the device.
b. Proper insulation of electrical leads and contacts to prevent electric shock
d. Requirement to include a safety switch to prevent unintended operation of the device.
Standards are good to know about but most of the time, it’s not practical for a designer to use them. Custom-designed components should be the first choice for a designer for a properly tailored design.
(T or F)
F
Briefly research roller chain. What standards organization is responsible for the standards related to roller chain sizing and geometry?
a. FAA
b. ASTM
c. ANSI/ASME
d. NEMA/NSF
c. ANSI/ASME
From the research of the previous question, regarding #60 roller chain, what is the dimension “P” equal to?
a. 1/8 in
b. 1 in
c. 3/4 in
d. #60 is not a standard chain size
c. 3/4 in
It is important for designers to have requirements because they are the agreement between engineering design and the customer.
(T or F)
T
Which of the following best describes what a ‘requirement’ is with regard to engineering design?
a. A brief written statement that communicates a necessary function or feature of a designed item.
b. Another name for a hardware/COTS element of a BOM tree.
c. A shared thought between designers and the customer regarding how the product should work.
d. A lengthy paragraph written by the customer describing in detail what they want a designed product to do.
a. A brief written statement that communicates a necessary function or feature of a designed item.
A ‘Requirements Document’ essentially is which of the following?
a. An excerpt of a reputable information source describing the importance of design requirements for engineering design
b. A special list describing the software tools designers need to create high quality CAD models
c. A table or list of requirement statements for a given project
d. A set of long-term goals an engineering company has to enhance quality and safety at their facility
c. A table or list of requirement statements for a given project
What are the 3 main parts of a proper requirements statement?
a. Margin of safety, margin of error, and efficiency
b. Device name and desired capability
c. Company name, engineer name, and product name
d. Device name, key word, and capability statement
d. Device name, key word, and capability statement
Which of the following are considered ‘key words’ for a requirement statement? (select all that apply)
a. should
b. will
c. has to
d. can
e. would
f. may
g. shall
a. should
b. will
f. may
g. shall
What is the meaning of the key word ‘shall’ with respect to engineering requirements?
a. The requirement is a must-have but if it’s unable to be fulfilled, engineering can waive the requirement with sound justification
b. The requirement is optional and can be fulfilled at the designer’s discretion
c. The requirement is a suggestion or recommendation by the customer
d. The requirement is a must-have with no allowance for ‘almost’
d. The requirement is a must-have with no allowance for ‘almost’
Considering ‘proper requirements’, what is meant by a requirement being ‘singular’?
a. For requirements containing ordinary differential equations, the solution is either divergent or results in a function divided by zero
b. This applies to requirements documents that contain only 1 requirement statement to drive design
c. A single requirement statement may not describe more than 1 capability
d. The requirement must be written with correct verb tense so it’s able to stand alone
c. A single requirement statement may not describe more than 1 capability
For a requirement to be considered ‘verifiable’, what would be true about that requirement?
a. The requirement was peer-reviewed prior to being recorded
b. The requirement was confirmed by the customer
c. The requirement has a diagram associated with it for further reference
d. There is a clear way to check that the design fulfills the given requirement
d. There is a clear way to check that the design fulfills the given requirement
Review the following requirement, select the problems that it has. (select all that apply)
“The flashlight shall remain cool to the touch during use.”
a. None of these, the requirement is proper as it stands
b. Not Current
c. Not Implementation-Neutral
d. Not Singular
e. Not Specific
e. Not Specific
Review the following requirement, select the problems that it has. (select all that apply)
“The flashlight shall be very strong and lightweight by fabricating the outer barrel from a solid carbon nanotube cylinder”
a. Not Singular
b. Not Specific
c. Not Implementation-Neutral
d. None of these, the requirement is proper as it stands
e. Not Feasible
f. Not Current
a. Not Singular
b. Not Specific
c. Not Implementation-Neutral
e. Not Feasible
Where does conceptual design occur in the design and development process?
a. Right after Kickoff
b. Right after SRR
c. It can happen anywhere in the design process
d. Right after PDR
b. Right after SRR
For effective design, it is preferable to have as many concepts developed as possible.
(T or F)
T
During the design process, how many concepts are carried forward to preliminary design?
a. Usually just 1
b. At least 5
c. All of them
a. Usually just 1
Which of the follow best describes the ideation method known as “analogy”?
a. Using an existing design as a starting point to formulate an idea for a new design
b. A form of industrial espionage that seeks to retrieve trade secrets clandestinely
c. Using an optimization program to produce ideas in the form of CAD model geometry
d. Creating a table of subfunctions and possible means to accomplish them
a. Using an existing design as a starting point to formulate an idea for a new design
Which requirements should a concept-level design be able to show support of?
a. Requirements don’t need to be met at the concept phase
b. Generally all of them but especially the difficult requirements that are often the most limiting to the design
c. The easy ones like color or small cosmetic details
b. Generally all of them but especially the difficult requirements that are often the most limiting to the design
what is morphology
a method of ideation where the user considers functions of a solution to a problem and then breaking the functions apart into multiple subfunctions. After the functions have been broken down, one must generate ideas and concepts as a means of meeting the requirements for each subfunction. These subfunctions and ideas are organized in a grid or table. In order to arrive at the overall solution, one idea for each subfunction is selected and that combination of ideas will create the overall solution.
what is TRIZ
a method of ideation that aims to overcome constraints to innovative thinking and generate a large variety of solution concepts. The method turns a specific problem into a general problem, which makes it possible to research known solutions to similar problems that one can take back to solve their specific problem.
There are typically 2 stages of concept evaluation. One stage with the design engineer and one with a larger group.
(T or F)
T
When the design engineer evaluates design concepts for the first evaluation, what are the 3 potential categories each concept will be organized into?
a. Feasible, Conditionally Feasible, and Unfeasible
b. Easy, Moderate, and Hard
c. Small, Medium, and Large
d. Cheap, Expensive, and No-Cost
a. Feasible, Conditionally Feasible, and Unfeasible
When the designer is evaluating concepts during the first evaluation, which of the following found in a concept design will lead to the design being deemed “Unfeasible”?
a. Fails to meet requirements
b. None of these, all concept designs are inherently feasible
c. Has one area that needs to be resolved but generally meets requirements
d. Is low risk
a. Fails to meet requirements
During the first evaluation with the design engineer, when a conceptual design is deemed “Unfeasible” due to lack of sponsorship, what does that mean?
a. The concept design did not originate from an existing patent
b. The design fails to meet requirements
c. None of these, all conceptual designs are inherently feasible
d. Program or functional leadership refuses to support the concept
d. Program or functional leadership refuses to support the concept
In a conceptual design, which of the following may be considered contributing an unreasonable level of risk to a design that is part of a customer-contracted development project?
a. Using Microsoft Project to plan project tasks, resources, and schedule
b. Utilizing immature, experimental technology to support a significant portion of the design
c. Having a short schedule
d. Using commercial off the shelf components to a large extent
b. Utilizing immature, experimental technology to support a significant portion of the design
Which of the following are benefits to using a decision matrix to facilitate concept evaluation? (select all that apply)
a. It maximizes subjective opinion and feeling
b. It’s easily recordable as a documented process
c. It produces numerical results that aid in quantitively comparing concepts
d. It produces more objective comparison
b. It’s easily recordable as a documented process
c. It produces numerical results that aid in quantitively comparing concepts
d. It produces more objective comparison
Considering Pugh’s Method for concept evaluation, how many criteria is a good range?
a. Pugh’s Method does not use criteria for comparison
b. 5 to 15
c. 30 to 40
d. 1 to 3
b. 5 to 15
When using Pugh’s Method for concept evaluation, it is possible to ‘weight’ certain criteria so they carry more value than others.
(T or F)
T
For Pugh’s Method of concept evaluation, if not included in the system requirements, what other considerations may be valuable to include in the criteria? (select all that apply)
a. The floor plan of the design office
b. Ease of manufacture
c. System efficiency
d. Production cost
b. Ease of manufacture
c. System efficiency
d. Production cost
To use Pugh’s Method for concept evaluation, why do we need to have a “Datum”?
a. The datum design is what each alternate design is compared against for each criteria
b. Pugh’s Method does not use a datum
c. The datum design is just an example design that isn’t part of the actual matrix
d. The datum is another word for the title block area that records all the identifying details for the evaluation
a. The datum design is what each alternate design is compared against for each criteria
Using Pugh’s Method for concept evaluation, what does it mean when one of the criteria receives the same score for each concept design?
a. It doesn’t mean anything; the scores can turn out in a variety of patterns
b. That criterion is not helping to differentiate the concept designs
c. That criterion is very influential to the evaluation
d. That criterion is more important than the other criterion
b. That criterion is not helping to differentiate the concept designs
The highest-scoring concept design coming out from the concept evaluation matrix must always be selected to be developed further in preliminary design.
(T or F)
F
