Font size
WorksheetsEES Spring final
Total questions: 80
Worksheet time: 3hrs 6mins
The study of values, issues, and decisions that are involved with the work of engineers is known as:
conscientious.
engineering ethics.
systems thinker.
efficient.
Engineers need to ask two of the following questions to extend human capabilities. (09-17 Edpuzzle)
How can we prioritize good?
What is good for humans?
How is the system efficient?
What is good?
Select the American Society of Civil Engineers Code of Ethics distinct principles from the following. (09-17 Edpuzzle)
Service with competence.
Reputation by merit.
Continue professional development.
Consider system designs and moral reasons.
The one factor that a scientist changes during an experiment. (It affects the results of the experiment). (10-07 Act. 1.3.2 Experimental)
Dependent Variable
Independent Variable
Controlled Variable
The variable that is measured. It is the result of the experiment. (10-07 Act. 1.3.2 Experimental)
Controlled Variable
Independent Variable
Dependent Variable
The factors stay the same throughout the experiment. (10-07 Act. 1.3.2 Experimental)
Constant
Independent Variable
Dependent Variable
Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.
What is the independent variable? (10-07 Act. 1.3.2 Experimental)
Dropping from the same height
Amount of time it takes the helicopter to hit the floor
Wing Length
Dropping the same way
Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.
What is the dependent variable? (10-07 Act. 1.3.2 Experimental)
Amount of time it takes the helicopter to hit the floor
Dropping the same way
Wing Length
Dropping from the same height
Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed two tomato plants in 10 inch pots with potting soil and watered them ¼ cup each day. One plant was placed under a cardboard box and one was placed in the sunlight. She measured the growth of the plant each week for three weeks.
What is the dependent variable? (10-07 Act. 1.3.2 Experimental)
The growth of the plant
Using the same type of plant
Each plant was placed in a 10-inch pot
One plant is in the sunlight and the other is under a box
Based on the tensile test graph, B represents the _ of the material.
stress
fracture point
strain
elasticity range
(10-15 Act. 1.3.3 Notes)
A "complete recovery" occurs during this phase when the material regains its original length when the stress is removed:
elastic deformation.
flow region.
material hardening.
necking.
(10-15 Act. 1.3.3 Notes)
After these points are exceeded even if the forces are removed immediately the material does not regain its original properties during this phase:
elastic deformation.
flow region.
material hardening.
necking.
(10-15 Act. 1.3.3 Notes)
During this phase, if the stress is increased further an increasing number of upright dislocations form in the crystal lattice prevents the movement of the previous still sliding dislocations. At the same time, the stress in the crystal lattice continues to increase which causes hardening of the material. Here the metal becomes stronger as the strain increases.
elastic deformation.
flow region.
material hardening.
necking.
(10-15 Act. 1.3.3 Notes)
In the crystal lattice of the metal bar, so many dislocations have occurred that they can no longer lead to hardening but instead contribute to the formation of voids or cavities. The voids also cause the material cross-section to reduce until it can no longer withstand the stress at point B, better known as the:
elasticity range.
stress
strain
fracture point
10-15 Act. 1.3.3 Notes
As an engineer for Graco, you have been assigned to design a baby bottle safe, durable, and dishwasher friendly for babies 6-12 months. Based on the tensile test results, explain the plastic material you would select to manufacture your innovation.
(10-14 Calculate Volume)
What is the volume of this figure?
900 ft3
97 ft3
90 ft3
87 ft3
(10-14 Calculate Volume)
What is the volume of this figure?
230 cubic inches
168 cubic inches
132 cubic inches
145 cubic inches
(10-14 Calculate Volume)
What is the volume of this figure?
72 unit3
1.5unit
27 unit2
27unit3
(10-19 Edpuzzle: Constraints)
Identified limitations to the design of a product or system are known as:
criteria.
trade-offs.
constraints.
efficiency.
(10-19 Edpuzzle: Constraints)
Time, budget, and safety are almost always considered to be:
Hint: The company benefits from them to earn a profit while providing a quality product.
criteria.
trade-offs.
constraints.
efficiency.
(10-19 Edpuzzle: Constraints)
Identified elements and/or features of a product or system are known as:
Hint: Customers set the standards based on their needs, wants, and desires for the system (product).
constraints.
trade-offs.
criteria.
efficiency.
(10-19 Edpuzzle: Constraints)
A constraint that is concerned with cost and must be considered when designing is:
optimization.
aesthetics.
economical.
maintenance.
The retail package is the basic unit in unit loading.
weight
volume
weight per volume
fragility
The amount of matter in an object:
weight.
circumference.
mass.
volume.
It is affected by gravity:
mass.
weight.
volume.
circumference.
What is the step in the Engineering Design Process where you identify a problem or need that exists?
Plan
Ask
Imagine
Create
During which step of the Engineering Design Process do you experiment with the prototype under controlled conditions and collect /record data?
Imagine
Improve
Plan
Test and Evaluate
During which step of the Engineering Design Process would the specific constraints or requirements of the challenge be identified?
Ask
Plan
Create
Improve
An emergency-equipment company makes warning-signal flares. The company wants to redesign a flare so that it produces light for a longer period of time.
After the company thinks of ideas, what is the next step in the design process?
Build a prototype
Decide on the best solution
Identify the criteria and constraints
Test a model
Where do engineers store all their ideas?
Online application
3-ring binder
bound notebook
sticky notes
Choose the correct order for the steps of the Engineering Design Process.
Define the Problem, Brainstorm Possible Solutions, Explore Solutions, Generate a Solution, Test and Evaluate
Define the Problem, Brainstorm Possible Solutions, Explore Solutions, Test and Evaluate, Generate a Solution
Define the Problem, Brainstorm Possible Solutions, Generate a Solution, Explore Solutions, Test and Evaluate
Explore Solutions, Define the Problem, Brainstorm Possible Solutions, Generate a Solution, Test and Evaluate
If your initial design doesn't fully solve the problem or meet the challenge, you must go back and revise your plan. This is part of which step in the Design Process?
Ask
Improve
Create
Imagine
Engineers plan on developing a new drill for use on oil rigs. What should the engineers do first in order to develop the new drill?
Build a prototype of the new drill
Determine the materials needed to build the new drill
Test existing technology
Conduct research on features for a new drill
A small group of people starts sharing ideas. Some ideas may seem silly, but all suggestions are written down for further consideration. This activity is part of which step of the Engineering Design Process?
Imagine
Create
Ask
Plan
A team of engineers is asked to design a scooter for less than $30. They decide that they will only use recycled materials. Which of the following is the team’s constraint?
Made out of recycled materials
Designed to appeal to kids
Cost less than $30 to produce
What size resistor would produce a 3 Amps current flow with a 12 emf?
3 Ohms
4 Ohms
12 Ohms
1 Ohm
What is current measured in?
Ω (Ohms)
Electrical pressure (Volts)
A (Amps)
W (Watts)
What is Resistance?
The ability to reduce the flow of electrons
The flow of electrons
Electric potential difference
The flow of protons
The electricity that flows in a closed path is called a:
path.
current.
light.
circuit.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
2.5 V
10 V
25 V
0.4 V
If the voltage is increased and the resistance stays the same, the current will:
decrease.
stay the same.
increase.
If the voltage stays the same and Resistance is increased, the current will:
decrease.
remain the same.
increase.
If the battery produced 12.6 Volts what would be the current flow for a 6 Ohm resistor?
2.1 Amps
1.71 Amps
2.4 Amps
15 Amps
The first two color bands are........
Percentage
Digits
Tolerance
Size
The third color band is the _.
digit
multiplier.
tolerance.
percentage.
The fourth color band represents the _.
digit
tolerance.
multiplier.
The gold color band refers to__________tolerance.
+ / - 5%
+ / - 20%
+ / - 10%
zero
If the fourth color band old is gold on a 100 ohm resistor. The range for the tolerance is between_____and ______
- 95% and + 110%
+ / - 5% of 1K
-80% and + 120%
- 95% and + 105%
What is the median (average) value for the following resistor?
550 Ohms
220 Ohms
110 Ohms
222 Ohms
Where did the name "breadboard" come from?
It sounded like a fun name.
They used to wire circuits on the board that was used to cut bread
It is made of bread
It is in the shape of a piece of bread
What will happen if you forget to include one of these in the circuit?
The current will go too fast
The LED will burn out
The circuit will overload
What physical quantity does the voltmeter measures?
Current
Power
Resistance
Voltage
What physical quantity does ammeter measures?
Voltage
Current
Power
Resistance
A tool that measures voltage, current, resistance, and continuity is called a:
ammeter.
voltmeter.
multimeter.
On a multimeter, the black probe is connected to the __.
Amperage
COM (which is positive)
COM (which is negative)
Continuity
What type of measurement requires the component to be isolated and power removed?
Currency
Current
Voltage
Resistance
The multimeter should always be set ______ than/with the indicated value.
lower
higher
twice
What will appear to the display if the probes are connected in reverse?
A positive reading
A "twice the value" reading
An infinite reading
A negative reading
What scale in the multimeter will you choose when you are to measure the voltage of a power outlet?
ACV Scale
AC Current Scale
DCV Scale
Resistance Scale
The place where a lever pivots is called the _______.
center
pivot point
fulcrum
What kind of lever is this?
Third Class Lever
Second Class Lever
First Class Lever
A see-saw is an example of a _-class lever.
1st
2nd
3rd
A wheelbarrow is an example of a _-class lever.
1st
2nd
3rd
0.987
4.887
4.987
0.887
1.433
1.500
1.543
1.532
2.151
.0515
2.515
0.151
0.622
5.662
5.622
0.662
0.553
9.066
1.066
0.966
Which of the two circuits would have the brightest bulbs?
A
B
Does this statement best describe a parallel or a series circuit?
When more light bulbs are added they all remain bright.
Parallel circuit
Series circuit
Series circuit - Bulbs are off
Series circuit - Bulbs are lit
Parallel circuit - Bulbs are lit
Parallel circuit - Bulbs are off
This circuit does not work because _.
the bulbs are not connected properly.
the single cell is not powerful enough.
there is a short circuit.
there is a break in the circuit.
open parallel
open series
closed parallel
closed series
What is the part within the red boxes called?
Input buttons
CPU
Ground
Micro-usb connector
The "On Shake" Microbit command relies on the:
LEDs
accelerometer
the input buttons
compass
How many variables have been used in this program?
2
1
3
4
What name is given to this programming editor that lets you code the Microbit?
Javascript
Python
Block editor
C++
The current going through the 45-ohm resistor is
0.05 amps
0.1 amps
0.2 amps
5 amps
The voltage dropped across the 300-ohm resistor is
6V
2 V
9 V
3 V
What will happen if one light bulb is removed from this circuit?
The other bulbs will stay on
The battery will become stronger.
The other bulbs will go out.
The other bulbs will get dimmer.
