Intro to Mechanical Engineering
Exam 1
How do you know you have chosen the "right" career?
A.) Your family and friends feel it is a good fit.
B.) You are satisfied and challenged.
C.) Your boss is happy with your work.
D.) You are appropriately compensated. - ------------ANS: B.) You are satisfied and
challenged.
In a common ethical riddle, a person is forced to make a decision that will result in
injury to either their child or 100 strangers. This riddle is an appeal to which
perspective?
A.) Intent
B.) Consequences
C.) Character
D.) Fairness - ------------ANS: B.) Consequences
In making a prototype of a toy automobile, list the post-rapid-prototyping finishing
operations that you think would be necessary. Explain. - ------------ANS: The post
prototyping operations would vary based on the method used to make it. It can vary
from almost none (such as with MJM) to grinding, sanding, wax-coating, painting to
create a
smooth, attractive, and safe surface finish. You most likely would not need any curing
or
further strengthening, as it would more than likely not be made of metal or ceramics.
In researching a topic, which method is NOT a good way to validate the information
on a webpage?
A.) Search for other webpages on the same topic.
B.) Follow the links on that website to see their supporting information.
C.) Search for articles that have been peer reviewed.
D.) Find official webpages on the topic, such as a .gov or company website.
E.) Use the library to find books on the topic. - ------------ANS: B.) Follow the links on
that website to see their supporting information.
, In the ficticious story of George Washington and the cherry tree, a young George
Washington tells the truth even when the consequence would likely result in
punishment. This story is an appeal to ethical action from which perspective?
A.) Consequences
B.) Intent
C.) Fairness
D.) Character - ------------ANS: D.) Character
List the processes described in this chapter that are best suited for the production of
ceramic parts. Explain. - ------------ANS: 3DP and Selective laser sintering are best
suited for producing ceramics because they can
both work well with ceramic powder with appropriate binder to produce ceramic
pieces.
Synthetic (human caused) conversion of nitrogen into more reactive forms now
accounts for what percent of all nitrogen fixation?
A.) 1%
B.) 10%
C.) 50%
D.) 90%
E.) 99% - ------------ANS: C.) 50%
Using the PERIOD method, design an experiment that compares how four different
tires perform. You decide to run an experiment that tests all four tires on dry, damp,
and wet roads for decelerations of 1, 3, 5, 7, and 9 m/s^2. If each experiment is
repeated two times, how many measurements are needed?
A.) 240 measurements
B.) 120 measurements
C.) 60 measurements
D.) 30 measurements - ------------ANS: B.) 120 measurements
What are the cleaning and finishing operations in rapid-prototyping processes?
Why are they necessary? - ------------ANS: The cleaning and finishing operations in
rapid prototyping essentially clean up the product
through things such as sanding, grinding, filing, or secondary machining to make the
prototype more accurate to the real product. It is necessary because the production
technique can leave unwanted material behind or leave it with a rough, unrealistic
appearance.
What engineer would be most likely to work on identifying and reducing the number
of defective car engines built on an assembly line?
Exam 1
How do you know you have chosen the "right" career?
A.) Your family and friends feel it is a good fit.
B.) You are satisfied and challenged.
C.) Your boss is happy with your work.
D.) You are appropriately compensated. - ------------ANS: B.) You are satisfied and
challenged.
In a common ethical riddle, a person is forced to make a decision that will result in
injury to either their child or 100 strangers. This riddle is an appeal to which
perspective?
A.) Intent
B.) Consequences
C.) Character
D.) Fairness - ------------ANS: B.) Consequences
In making a prototype of a toy automobile, list the post-rapid-prototyping finishing
operations that you think would be necessary. Explain. - ------------ANS: The post
prototyping operations would vary based on the method used to make it. It can vary
from almost none (such as with MJM) to grinding, sanding, wax-coating, painting to
create a
smooth, attractive, and safe surface finish. You most likely would not need any curing
or
further strengthening, as it would more than likely not be made of metal or ceramics.
In researching a topic, which method is NOT a good way to validate the information
on a webpage?
A.) Search for other webpages on the same topic.
B.) Follow the links on that website to see their supporting information.
C.) Search for articles that have been peer reviewed.
D.) Find official webpages on the topic, such as a .gov or company website.
E.) Use the library to find books on the topic. - ------------ANS: B.) Follow the links on
that website to see their supporting information.
, In the ficticious story of George Washington and the cherry tree, a young George
Washington tells the truth even when the consequence would likely result in
punishment. This story is an appeal to ethical action from which perspective?
A.) Consequences
B.) Intent
C.) Fairness
D.) Character - ------------ANS: D.) Character
List the processes described in this chapter that are best suited for the production of
ceramic parts. Explain. - ------------ANS: 3DP and Selective laser sintering are best
suited for producing ceramics because they can
both work well with ceramic powder with appropriate binder to produce ceramic
pieces.
Synthetic (human caused) conversion of nitrogen into more reactive forms now
accounts for what percent of all nitrogen fixation?
A.) 1%
B.) 10%
C.) 50%
D.) 90%
E.) 99% - ------------ANS: C.) 50%
Using the PERIOD method, design an experiment that compares how four different
tires perform. You decide to run an experiment that tests all four tires on dry, damp,
and wet roads for decelerations of 1, 3, 5, 7, and 9 m/s^2. If each experiment is
repeated two times, how many measurements are needed?
A.) 240 measurements
B.) 120 measurements
C.) 60 measurements
D.) 30 measurements - ------------ANS: B.) 120 measurements
What are the cleaning and finishing operations in rapid-prototyping processes?
Why are they necessary? - ------------ANS: The cleaning and finishing operations in
rapid prototyping essentially clean up the product
through things such as sanding, grinding, filing, or secondary machining to make the
prototype more accurate to the real product. It is necessary because the production
technique can leave unwanted material behind or leave it with a rough, unrealistic
appearance.
What engineer would be most likely to work on identifying and reducing the number
of defective car engines built on an assembly line?
