Engineering Final Exam

Which rotation does the following object not experience? 1 axis rotation.png

-y, +z

Which of the following values represents the minimum interference of the shaft and hole sizes? https://docs.google.com/document/d/1rR9MJGFTc0XJR3aOSuYx27pXFzmQnVe2yn08C7S7VQ8/edit

.03

The goal of the following sketch is to draw the resultant vector of s + r from the given image. Include a line to the sketch that will determine the magnitude of the resultant vector drawn, then print its value to the counsel. Write down the value given (four values after the decimal place). https://docs.google.com/document/d/1eQek1LfZtMdiR4R8ge3b_rVy4c6Rk-P5fMg4GSeMlwE/edit

0.7211

The goal of the following sketch is to draw the resultant vector of s + r from the given image. Include a line to the sketch that will determine the magnitude of the resultant vector drawn, then print its value to the counsel. Write down value given (four values after the decimal place). Vector.png Vector_Sketch.pde

0.7211

Given a basic size of 1.5 inches, and a fit of LC2, determine the LMC of the hole.

1.501

You and 5 other members of your team are asked to design a new tennis racket. Using a well-known brain writing technique, 3-6-5, how many ideas in total can be generated through this technique?

108

How many multiviews are needed to display all of the dimensions of an object?

2

How is a chamfer dimensioned correctly?

2X 3 X 2

From the following sketch, list the number of created functions that are visible. Class.png

6

From the following sketch, write the number of created functions that are visible. https://docs.google.com/document/d/1vzn4-VLCgaoAZJDpKraA5nWuQPNMQM1hkTbkvrxIoZM/edit

6

Define the Boolean operations that created the final object. Boolean Op.png

A cut by B and C

Define the Boolean operations that create the final product.

A cut by B, then cut by C

Define the Boolean operations that create the final product. Boolean.png

A joins B, then intersection of C

Define the Boolean operations that created the final object. https://docs.google.com/document/d/1rnX_ki9qGrfo261e3IyxJQ63qzKGYfFCOuUTzjXwALQ/edit

A joins B, then intersects with C

What is defined as the minimum clearance or maximum interference between parts?

Allowance

Why is it important to define a range of acceptable tolerances for manufacturing? (Select all that apply)

Allows parts to be manufactured in different places. Allows cost of the product to be reduced Allows for very small tolerances. Allows assembled parts to fit together easily

Which of the following are not true about oblique surfaces?

Appears as a surface in only one view Appears as an edge in only one view

Which of the following is true about inclined surfaces?

Appears as an edge in only one view Retains its shape in at least two views

Which of the following pictorials will produce the multiviews shown? Fig4.png

B

The figure summarizes survey responses to a question. Which graph type is used to display the responses? Graph.png

Bar chart

Label the formatting of the following tolerance... https://docs.google.com/document/d/1h5yVhnr1YDhg9Q89ljyf1GIpPeVcUDeuvmgm6L8ncow/edit

Bilateral

From the following sketch, what is the name of the class? Class.png

Boid

Select the pictorial view of the object that will produce the multiviews given. https://docs.google.com/document/d/16Gl7zCiV21X9NXp3QdsiFw2Cmxa4Qr2fOadEJZ1jXuY/edit

C

The U.S. Department of Energy reported that 14% of adults were below a basic literacy level. The variable literacy is considered to be...

Categorical

For the pictorial shown, which multiview correctly shows the front, top, or r. side view of the object? Fig2.png

D

Is rotated to, as rotated to Fig1.png

D

Dimension lines occasionally have arrows attached to them.

False

It is not acceptable for extension lines to cross other extension lines.

False

The gap between the extension line and the object may not be visible.

False

The preferred way engineering projects are done is by separating skills and organizing functional groups.

False

When looking down a coordinate axis, the CCW rotation of a 2D shape is negative

False

When rotating about two or more axes, the rotations are commutative

False

Which of the following values represents the fit? of the shaft and hole sizes? https://docs.google.com/document/d/1CSgWpy_emw1sbXKjoK75uVT3ymo0DTctqJt9mZ23-qI/edit

Force fit

Data was collected based on a survey of 100 people who recently purchased a motorcycle. Based on the information given, which of the following variables are categorical?

Gender of purchaser Brand of motorcycle purchased Telephone area code of purchaser

What dimensions do the front and R. side views have in common?

Height

Which of the following conditions is related to a Clearance fit?

Hole > Shaft

How is the basic size related to the shaft and the hole?

It is the same

Kai exits off I-20W and makes a right turn, then makes a right at the next light. If he makes a left turn at the next light, in what direction must he turn to continue heading west (assuming each section of road remains straight)?

Left

Which of the following is a characteristic of solid modeling that is not found in CAD?

Linear materials analysis

The Min Clearance is defined as...

Min of hole - Max of shaft

If a student is interested in robotics, what branch of engineering are they least likely to consider?

Molecular

Data was collected based on a survey of 100 people who recently purchased a motorcycle. Based on the information given, which of the following variables are discrete numerical?

Number of previous motorcycles owned by purchaser

If you point your index fingers toward each other, rotate your right finger and have the left finger move in the opposite direction, then

One is clockwise and the other is counterclockwise

If you point your index fingers toward each other, rotate your right finger and have the left finger move in the opposite direction, then...

One is clockwise and the other is counterclockwise

In the following Processing sketch, select all the manners in which variables are declared Stopwatch.png

PFont int

CNC manufacturing is most beneficial in what stage of the design process?

Refinement

Which time period saw the rise of physical scientific thinking?

Renaissance

Which of the following is true about oblique surfaces?

Retains its shape in at least two views Appears as a surface in all three views

A pilot does several aerial manuevers that would that would leave most people dizzy and nauseous, yet she pulls out of the manuevers and continues her flight plan. What spatial skill does she posess?

Spatial orientation

What type of spatial skill is required to know what direction someone is traveling in once they exit off the highway?

Spatial orientation

A quarterback is consistently the ball short of the receivers or past them, making it difficult for them to catch the ball. What spatial skill is the quarterback struggling with?

Spatial perception

What spatial skill allows Courtney to notice that a car headed towards her is speeding up or slowing down?

Spatial perception

Which coordinate system would be best used to create the figure shown? Fig4.png

Spherical Coordinate System

Which coordinate system would be best used to create the figure shown? Fig3.png

Spherical Coordinate System

Which two designs are modifications of the Roman arch?

The Dome The flying buttress

Which of the following objects is most likely to have the lowest tolerance?

The Mars rover

Which of the following is a vector quantity?

The weight of a ball

Why are modern civilizations unable to determine how ancient pyramids were constructed?

There was no written documentation

Slim-fitting jeans is an example of what type of fit?

Transition

The cutting plane line takes precedence over the object line.

True

Which of the following is a natural progression for developing human intelligence?

Walking before throwing a ball

The Ranking Table (attached) shows four different design concepts where each design is evaluated against three design objectives (criteria). What is another name for this table? Ranking table.png

Weighted Decision Table

Which type of perspective view represents a child looking up at an object on a high kitchen shelf?

Worm's eye view

The student senate at a university with 15,000 students is interested in the proportion of students who favor a change in the grading system to allow for plus and minus grades (e.g., B+, B, B-, rather than just B). Two hundred students are interviewed to determine their attitude toward this proposed change. The population of interest consists of how many students? [1] These two hundred students constitute a(n) [2].

[1] 15,000 [2] sample

Which is an an example of aesthetic analysis?

a vanity mirror on the visor

The arrows on dimension lines point to extension lines...

always

The cube shown has a different pattern on every one of its six sides. Choose which alternative represents a view of the cube that has been rotated in space. MR.png

b

Which is an example of mass properties analysis?

determining the center of mass of a car

In a Processing Sketch, a circle moves from the bottom of the screen to the top. Choose the command that would complete the following sketch: float x = 500; float y = 500; x -= 0.5; y = y - 0.5;

ellipse(height/2, x, 40, 40);

Baseline dimensioning is preferred over chain dimensiongin because it reduces...

error buildup

State which of the following figures is symmetric about the yz-plane. Symm figs.png

fig b

State which of the following figures is symmetric about the yx-plane. Symm figs.png

figs b & c

If the picture plane is in front of an object, the object appears...

further away

In a perspective drawing, the object always touches the...

ground line

Based on the pictorial below, select the view that correctly shows the top front, or r. side view.

https://docs.google.com/document/d/1-bKZ_RzLFRN01u-2kUqpfA0OQbz8R7QhICZ9GsdBieI/edit

Which of the following has the smallest tolerance?

https://docs.google.com/document/d/1hehAPXjMWf4uQRrJmuBgHDGoVxl5hIgZ9FzNol0ILDo/edit

By the time a product goes into production, 95% of its costs is determined, making it...

impossible to make changes to design.

A diameter is dimensioned...

in the rectangular view if it is a shaft in the circular view if it is a hole

What is the name of the edge of the object originally in contact with the axis or rotation and remains in contact after rotation?

pivot edge

Which of the following Processing sketches will print 100.0 to the console? (Check all that apply)

print(x+y); println(x + y);

The attached is a Processing display that shows two vectors, s and r, on a 100 X 100 display where the position of the origin (0, 0) is at the top left of the display and each grid line represents 10 units (similar to sketch PPs1_1). Determine the x and y components of vectors s and r. Use the format: s = (x, y) r = (a, b) Note: Both vectors start and end on a grid line Vector.png

s = (30, 0) r = (30, -40)

Johnny is approaching a red light and his car comes to a stop after crossing over the line (as the image shows). What spatial skill is he lacking?

spatial perception

Center lines must cross and create a cross hair in...

the circular view of a circular feature

When dimensioning a counterbore, the 2nd diameter value represents...

the largest diameter the counterbore

Tolerance is defined as..

the total permissable variation of a size.

In 3rd Angle Projection, the L. side view is drawn...

to the left of the front view

In 1st Angle Projection, the L. side view is drawn...

to the right of the front view

Given the parameters below, what command is implemented in the Processing sketch to make an object move from the left side of the screen to the right? PVector position = new PVector(-width/2, height/2); PVector velocity = new PVector(width/2, 0); rect(velocity.x, velocity.y, 50, 50);

velocity.sub(position)

Given the parameters below, what command is implemented in the Processing sketch to make an object slow down and then change direction? PVector position = new PVector(-width/2, 0); PVector velocity = new PVector(width/2, 0); PVector push = new PVector(5, 0); rect(velocity.x, velocity.y, 50, 50);

velocity.sub(position) position.add(push)

In a Processing, if a global variable is defined as x = 10, and you wanted to increase the value of x in increments of 1.5, how could you write that?

x += 1.5

In a Processing, if a global variable is defined as x = 10, and you wanted to decrease the value of x in increments of 1.5, what two different ways could you write that?

x -= 1.5; x = x - 1.5;