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WorksheetsIED 4.1.2 Quiz
Total questions: 49
Worksheet time: 25mins
What is the main goal of Activity 4.1.2 "Cams Make the World Go Round"?
To understand the history of cams
To use mathematical modeling to optimize design criteria
To study the biological aspects of cams
To learn about the political impact of cams
Which software is suggested for creating a sketch in Activity 4.1.2?
Adobe Photoshop
Microsoft Paint
Fusion 360
AutoCAD
What is one of the tasks to be performed using Fusion 360 in Activity 4.1.2?
Create a pie chart
Write a program
Create a construction plane
Design a website
What is the purpose of a cam mechanism?
To increase the speed of an axle
To change the direction or rhythm of movement of other parts
To reduce friction between machine parts
To generate electrical energy
Which of the following is NOT a product that typically uses a cam mechanism?
Clock mechanisms
Sewing machines
Electric motors
Toys
What will you create in the activity to understand cam mechanisms better?
A 2D sketch of a cam
A 3D solid model of a cam
A physical prototype of a cam
A written report on cam mechanisms
Why is parametric modeling used in creating a 3D model of a cam?
To ensure the model is aesthetically pleasing
To make the model waterproof
To allow the model to be quickly changed to adapt to new criteria
To reduce the cost of production
What is the cam number for the Hexagonal cam type shown in Figure 2?
1
4
5
3
Which cam number corresponds to the Eccentric cam type according to Figure 2?
2
3
4
6
Identify the cam number for the Pear cam type as depicted in Figure 2.
5
1
3
6
What examples can you identify of products that use a cam mechanism?
Electric fan
Internal combustion engine
Hydraulic press
Digital clock
What is the benefit of using parametric modeling when designing furniture for different sized individuals?
It allows for the creation of complex geometries with minimal effort.
It enables quick scaling of models by changing one or two dimensions.
It eliminates the need for physical prototypes.
It automatically generates the necessary materials list.
What is the purpose of applying constraints in the design of a model for manufacturing?
To change the color and material of the model
To enforce geometric and dimensional relationships regardless of the actual size
To reduce the cost of manufacturing
To increase the production time
What is the name given to the copy of the pear cam created in the document?
OnlineOrderCam
ParametricPear
NominalCam
FlexiCam
What does the new parameter "NominalDia" represent in the ParametricPear model?
The color of the pear cam
The material of the pear cam
The nominal diameter of the pear cam
The actual size of the pear cam
What value is assigned to "NominalDia" in the ParametricPear model?
(a)
What is "NominalDia" used for in relation to the cam?
To describe the color of the cam
To describe the material of the cam
To calculate other assigned cam dimension values
To represent the actual measurement value of the cam diameter
What is the first step to modify parameters in Fusion 360 according to the document?
Select the '+' beside the User Parameters line.
Review the "Direct and parametric modeling" in Project Documentation.
Enter the Name and Expression in the Add User Parameters dialog box.
Assign AxleDia a value of 0.25 in the Expression box.
What should you select after choosing Modify in Fusion 360 to change parameters?
User Parameters
Change Parameters
Add User Parameters dialog box
Parameters menu
What is the expression value assigned to the parameter "NominalDia" in Fusion 360?
"0.25"
"2.5"
"NominalDia"
"AxleDia"
What is the purpose of creating the AxleDia parameter in Fusion 360?
To set a fixed diameter for all future projects.
To represent the color of the axle.
To plan for varying axle diameters in future activities.
To calculate the speed of the cam rotation.
What does the Parametric 3D solid modeling software automatically assign to each dimensional constraint added to the model?
A) A unique color code
B) A default name starting with "d1"
C) A random alphanumeric string
D) A user-defined label
When is a parameter created in the context of the Parametric 3D solid modeling software?
A) When a 3D model is saved
B) When a dimensional constraint is added to a sketch or feature
C) When the software is updated
D) When a new file is opened
What can you do to make it easier to identify which dimensional constraint a parameter represents?
A) Delete the parameter
B) Replace the default parameter name with a meaningful collection of letters and numbers
C) Change the unit of measurement
D) Increase the value of the parameter
What additional information can be added to parameters to provide more information?
A) Hyperlinks to external resources
B) Comments
C) Password protection
D) Animation effects
In the context of the image, what does the parameter "d5" represent?
A) A radial dimension
B) A diameter dimension
C) A distance parameter
D) A taper angle parameter
What does the parameter "d6" represent in the image?
A) A radial dimension
B) A diameter dimension
C) A distance parameter
D) A taper angle parameter
What is the name of the parameter that represents the thickness of the cam in the Sketch1 and Extrude1 feature?
D1@Boss-Extrude1
Thk
D1@Sketch1
A
How do you open the parameter table in Fusion 360?
Select Modify, then Change Parameters
Select Tools, then Parameters
Select Edit, then Change Properties
Select View, then Show Parameters
What should you expand to find the parameter for the cam thickness in Fusion 360?
Sketch 1 and Extrude 1
Component and Sketch 2
Component and Extrude 2
Sketch 2 and Extrude 1
What is important to note about parameter names in Fusion 360?
They are assigned by the user exclusively.
They are assigned by the CAD program in the order that dimensional constraints are applied.
They can only be renamed by the program administrator.
They are automatically unique for each model.
What abbreviation is suggested for renaming the cam thickness parameter in the parameter table?
CT
CAM
Thk
Tck
What is the purpose of the Parameter Name Display as described in the image?
To display the name of a parameter associated with a model's physical properties.
To display the name of a parameter associated with a sketch dimension when you hover over the dimension.
To rename a parameter associated with a sketch dimension.
To display the list of all parameters in the Parameters menu.
How can you view the display of a parameter name in a sketch according to the image?
By selecting the parameter from the Parameters menu.
By double-clicking on the dimension in the sketch.
By opening the sketch and hovering over the dimension.
By renaming the parameter in the parameter table.
What should you rename the hole diameter parameter to, as indicated in step 8?
HoleSize
HoleDimension
HoleDia
DiameterValue
Refer to Figure 8 in the image. What is the displayed name for the dimension d4?
R1.25
d4: Ø.25 in
Ø0.25
R0.25
According to Figure 9, how is the diameter of the hole in the middle of the cam expressed?
NominalDia plus 0.025 in.
AxleDia minus 0.025 in.
NominalDia divided by four.
AxleDia plus 0.025 in.
What mathematical operation is used to express the small radius at the top of the cam in Figure 9?
Multiplication by four
Division by four
Subtraction by 0.025 in
Addition of 0.025 in
What is the first step to replace parameter expressions in Fusion 360 according to the document?
Select OK.
Close the Parameters menu.
Select Modify, then Change Parameters.
Replace the numeric values in the Expressions column.
After changing the parameter expressions in Fusion 360, what should you do before closing the Parameters menu?
Select Modify, then Change Parameters.
Close the Parameters menu.
Select OK.
Replace the numeric values in the Expressions column.
What is the purpose of replacing the numeric values in the Expressions column in Fusion 360?
To open the Parameters menu.
To change the unit of measurement.
To associate the mathematical expression with the parameter.
To select the Modify option.
What is an alternative way to revise a parameter expression according to the text?
By revising the parameter table only
By editing a parameter expression and updating the associated sketch dimension
By deleting the parameter table
By ignoring the parameter table and sketch dimensions
Why would the cam designer assign the value of AxleDia – 0.025 to represent the hole diameter?
To account for the size of the cam
To ensure a tight fit for the axle
To provide a clearance fit between the axle and the hole
To increase the weight of the cam
What initial value can you assume for the axle diameter when creating new parameters in your cam model?
0.5 inch
1.5 inches
0.025 inch
0.25 inch
What should be the tolerance of the axle size, whether a round or square axle, as mentioned in the document?
A) +/- 0.1 inches
B) +/- 0.01 inches
C) +/- 0.001 inches
D) +/- 0.5 inches
According to the document, what must be recorded when considering the tolerance of the axle size?
A) The weight of the axle
B) The color of the axle
C) The cam through hole dimensions including tolerance and the allowance between cam and axle
D) The length of the cam only
What is the purpose of modifying the through hole in your cam model as stated in the document?
A) To change the color of the cam
B) To fit the cam to the axle
C) To increase the weight of the cam
D) To make the cam rotate faster
What is the discussion prompt about in the document?
A) The advantages and disadvantages of using a round axle over a square axle
B) The advantages and disadvantages of using a square axle over a round axle
C) The advantages of using a square axle only
D) The advantages of using a round axle only
What will be the motion of a follower resting against the cam surface of each of the six types of cam profiles shown in the activity?
A) The motion will be linear and uniform
B) The motion will be random and unpredictable
C) The motion will be the same for all cam profiles
D) The document does not provide this information
