307 FINAL EXAM (ALL PRE-POST LAB) QUESTIONS AND ANSWERS
6 views 0 purchase
Course
307
Institution
University Of The People
307 FINAL EXAM (ALL PRE-POST LAB) QUESTIONS AND ANSWERS
The following plot is from an experiment that measured the force required to break the lead in a
mechanical pencil, when being held at 60 degrees from the flat surface. What's wrong with this plot?
Missing a legend
Dots shouldn't be conn...
307 FINAL EXAM (ALL PRE-POST LAB) QUESTIONS AND ANSWERS 2024-2025
The following plot is from an experiment that measured the force required to break the lead in a
mechanical pencil, when being held at 60 degrees from the flat surface. What's wrong with this plot?
Missing a legend
Dots shouldn't be connected
Nothing is wrong
Missing a title - ANS-✔✔Dots shouldn't be connected
One could make this data set linear by changing the x-axis limits to display only the linear region, where
x is between 3.5 inches and 4 inches for example. Inserting a trend line would then give the slope of the
linear region. - ANS-✔✔False
What's the best method for demonstrating your use of the correct analysis method?
Include as many equations as you can. Use the integral symbol (∫) or advanced logical operators
(∩,∑,×,Π) if you aren't sure of your technique.
Sample calculations
Email the TA ahead of grading
Provide all of the experimental data - ANS-✔✔Sample calculations
What is wrong with the following plot?
Nothing is wrong
Plot is missing a title
Theory should be a solid line
Experimental data should be a solid line
, Orange data points missing from first two data points - ANS-✔✔Theory should be a solid line
The fracture surface of the acrylic specimen is _______ to the direction of the loading. - ANS-✔✔
Normal
For ductile steel necking started at the yield point - ANS-✔✔False
If the main purpose of a tension test is just to find the elastic modulus and Poisson's ratio then one can
perform the test with a constant cross section cylindrical specimen instead of the varying-diameter dog-
bone shaped specimen. - ANS-✔✔False
For a highly brittle material with a fracture strength of 50 MPa and % of ductility of 5, what is the
materials toughness? - ANS-✔✔1.25 MPa
For a ductile material, typically - ANS-✔✔Fracture strength < Ultimate strength
If there is a small flaw in our acrylic test specimen (notch, crack, chip, scratch), oriented along the
loading axis, how will this affect the results of the compression test? - ANS-✔✔Failure will occur sooner
If the cross section of the longer wood specimen is two (2) inches by four (4) inches the load at failure
during your test on the Sintech 10/GL would be - ANS-✔✔Not applicable
In the stress concentration experiment, what is the purpose of a dummy gauge? Select ALL that apply.
It is not necessary if the surrounding temperature is accurately controlled to be the same for each
experiment.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Accurate. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.