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POE 2023 Final Exam

Total questions: 50

Worksheet time: 53mins

Name
Class
Date
1.
An engineer has designed and built a prototype to improve the brake system of a car. What is the next step that the engineer should take in the process?
a)
Test the prototype.
b)
Make sketches of the prototype.
c)
Identify constraints.
d)
Collect and analyze the test results. 
2.

During which step of the Design Process do you experiment with the prototype under controlled conditions and collect /record data?

a)

Test the Model

b)

Construct a Model

c)

Identify Failure Points

d)

Reflect and Redesign

3.
When finding the solution to an engineering problem, there is/are usually 
a)
only one possible correct solution
b)
a very limited number of possible correct solutions
c)
many possible correct solutions
4.

Which step of the Design Process involves communicating the results of your tests

a)

Identify the Problems

b)

Plan Solutions

c)

Identify Failure Points

d)

Reflect and Redesign

5.
When generating a solution, a designer creates either a model or a ________________.
a)
drawing
b)
report
c)
design brief
d)
prototype
6.
What is the main goal of the design process?
a)
To write reports
b)
To make things
c)
To make charts and graphs
d)
To find solutions to problems
7.

What does "iterative" mean?

a)

The process happens only once

b)

The process is difficult

c)

The process repeats itself

d)

The process is slow

8.

A prototype is a:

a)

working model

b)

A smaller version of the design

c)

Made out of different materials then the actual design.

d)

a sketch.

9.
A legal document and book in which an engineer will formally document, in chronological order, all of his/her work that is associated with a specific design project.
a)
Engineering Notebook
b)
Design Brief
c)
Justifiable
d)
Neutron
10.
Writing with a pen is best for entering data into an Engineer’s notebook.
True or False
a)
True
b)
False
11.
The deliverable document that goes with Generate Concepts is...
a)
Decision Matrix
b)
Project Recommendation
c)
Design Brief
d)
Technical Drawings
12.

Why is 3D modeling a powerful tool for engineers?

a)

3D models are cool to look at

b)

It allows an idea to be translated into a model that can explain the concept and allow for changes.

c)

3D Modeling replaces drawing and sketching

d)

You do not need a plan to use 3D Modeling

13.

In an isometric sketch, circles appear as

a)

circles.

b)

ellipses.

c)

rhombuses.

d)

squares.

14.

Why to Engineers make so many sketches

a)

They like to impress regular people with their drawing ability

b)

sketching tells a story about a design such as where it might be used

c)

sketching allows engineers to communicate details of their design quickly

d)

engineers use color in their design to show details like texture

15.

A mathematical property of a cross section (measured in inches) that gives important information about how that cross-sectional area is distributed about a centroidal axis:

a)

Centroid Principles

b)

Moment of Inertia

c)

Modulus of Elasticity

d)

Beam Deflection

16.

The ratio of the increment of some specified form of stress to the increment of some specified form of strain. Also known as coefficient of elasticity, elasticity modulus, elastic modulus:

a)

Centroid Principles

b)

Moment of Inertia

c)

Modulus of Elasticity

d)

Beam Deflection

17.

Object’s center of gravity or center of mass.

a)

Centroid Principle

b)

Moment of Inertia

c)

Modulus of Elasticity

d)

Beam Deflection

18.

Beam A and B are the same material and same dimensions. What distinguishes beam A from beam B?

a)

Beam A will have a greater resistance to bending because it has a lower moment of inertia.

b)

Beam A will have a greater resistance to bending because it has a higher moment of inertia.

c)

Beam B will have a greater resistance to bending because it has a lower moment of inertia.

d)

Beam B will have a greater resistance to bending because it has a higher moment of inertia.

19.

Flash-forward: soh cah toa

a)

The three ratios for electronic circuits

b)

a phrase to remember the three trigonometric functions

c)

Relationships of three types of trusses

d)

Names of the three blind mice

20.

What is a cantilever?

a)

A cantilever is a rigid structural element that is supported at only one end, with the other end projecting horizontally into space.

b)

A cantilever is a vertical support beam that is anchored at both ends.

c)

A cantilever is a type of bridge that is supported by cables.

d)

A cantilever is a flexible structural element that can bend and twist easily.

21.

What are the two main types of cantilever beams?

a)

simply supported cantilever beams and fixed cantilever beams

b)

continuous cantilever beams and hinged cantilever beams

c)

reinforced cantilever beams and prestressed cantilever beams

d)

composite cantilever beams and truss cantilever beams

22.

What is the purpose of a cantilever in architecture?

a)

The purpose of a cantilever in architecture is to create overhangs and provide structural support.

b)

The purpose of a cantilever in architecture is to reduce the overall weight of the structure.

c)

The purpose of a cantilever in architecture is to enhance the aesthetic appeal.

d)

The purpose of a cantilever in architecture is to increase the flexibility of the building.

23.

Give an example of a cantilever application in civil engineering.

a)

Tunnels

b)

Roads

c)

Dams

d)

Bridges or balconies

24.

What is the design principle behind cantilever bridges?

a)

Use of a projecting beam or structure supported at both ends

b)

Use of a projecting beam or structure supported at multiple points

c)

Use of a projecting beam or structure supported at only one end

d)

Use of a projecting beam or structure supported at neither end

25.

What is the design principle behind cantilever shelves?

a)

Diagonal beam anchored at one end

b)

Vertical beam anchored at one end

c)

Horizontal beam or bracket anchored at one end

d)

Curved beam anchored at one end

26.

What are the advantages of using cantilevers in construction?

a)

Increased flexibility and shorter spans with additional support

b)

Decreased flexibility and longer spans with additional support

c)

Decreased flexibility and shorter spans without additional support

d)

Increased flexibility and longer spans without additional support

27.

What are the disadvantages of using cantilevers in construction?

a)

Enhanced load-bearing capacity, reduced risk of structural failure, and lower construction costs.

b)

Unlimited load-bearing capacity, decreased risk of structural failure, and lower construction costs.

c)

Unlimited load-bearing capacity, reduced risk of structural failure, and lower construction costs.

d)

Limited load-bearing capacity, increased risk of structural failure, and higher construction costs.

28.

Explain the concept of overhanging cantilevers.

a)

Overhanging cantilevers are structures that are made of flexible materials.

b)

Overhanging cantilevers are structures that are shorter than their support point or beam.

c)

Overhanging cantilevers are structures that are completely detached from their support point or beam.

d)

Overhanging cantilevers are structures that extend beyond their support point or beam, creating an overhang.

29.
What is the direction of the force of gravity acting on the box?
a)
down the ramp to the right
b)
straight up
c)
straight down
d)
up the ramp to the left
30.
What is force?
a)
A push exerted on an object
b)
A push or pull exerted on an object
c)
A pull exerted on an object
d)
Nothing
31.

In order for the plane to move forward, it must have a greater force than this arrow?

a)

up arrow

b)

down arrow

c)

front arrow

d)

back arrow

32.
According to Bernoulli's Principle, when the wind speed is high, wind pressure is ________
a)
high
b)
low
c)
not enough information
d)
None of the above
33.
According to Bernoulli's Principle, when the wind speed is low, wind pressure is ________
a)
high
b)
low
c)
not enough information
d)
None of the above
34.
To generate lift, a blade is angled so the _________ pressure air moves under the blade.
a)
high
b)
low
c)
not enough information
d)
None of the above
35.

The faster a fluid moves, the lower the pressure is in the moving fluid compared to the fluid not moving as fast. This is called

a)

Newton's Laws

b)

Bernoulli's Principle

c)

Wright Brothers Priciple

36.
An engineer should use Engineering Notebooks to write down every idea, drawing, computation/calculation, observation, meeting notes/class notes, questions/answers, and interactions with other people or organizations.
a)
True
b)
False
37.
When you make an error:
a)
Scratch it out completely
b)
Erase it
c)
Draw a line through it
d)
X it out
38.
True or false: You are encouraged to remove pages from your Engineering Design Notebook.
a)
True
b)
False
39.
Where does the Table of Contents go?
a)
First Page
b)
Page Four
c)
Last Page
d)
Nowhere, this is a trick.
40.
True or False:  You are allowed to draw in your engineering notebook
a)
True
b)
False
41.
Why does the Engineering Notebook have to be in pen or permanent ink?
a)
Because the engineering notebook can be used during legal proceedings during a patent dispute.
b)
Because pencil is for middle and elementary school.
c)
You should NOT use a pen. 
d)
Because it makes you look more professional.
42.

Using technological and scientific knowledge to solve practical problems is call _______________.

a)

Math

b)

Invention

c)

Innovation

d)

Engineering

43.

A ________________ engineer may create a robot to discover water on a planet.

a)

mechanical

b)

electrical

c)

computer

d)

chemical

44.

A model that can be tested and redesigned is called a...

a)

product

b)

prototype

c)

process

45.
A systematic, creative, iterative process for addressing challenges.
a)
Informed Design
b)
Design Brief
c)
Engineering Design
46.
A limit imposed on a design solution.
a)
Constraint
b)
Specification
c)
Risk/Benefit Trade-Off
47.
Which one is balanced?
a)
top
b)
bottom
c)
both
48.
Which is the strongest shape used in engineering?
a)
Triangle
b)
Square
c)
Circle
d)
Rectangle
49.

The force of squeezing a material together is...

a)

compression

b)

tension

c)

torsion

d)

bending

50.
Thermal energy always moves:
a)
From a high temperature object to a lower temperature object.
b)
From a lower temperature object to a higher temperature object.
c)
From an object with lower kinetic energy to an object with higher kinetic energy.
d)
From an object of higher mass to an object of lower mass.

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