Exam (elaborations)
IMSE 250 (2)
- Course
- Institution
Exam of 5 pages for the course Imse 250 at Imse 250 (IMSE 250 (2))
[Show more]
Seller
Follow
lydiaomutho
Content preview
IMSE 250A student gets 100% on all exams but has not done any homework or quizzes. The best grade
this student can get is a... - ANS-D
Make up quizzes ____________ be given - ANS-will not
Online homework assignments are due - ANS-Friday at 11:59 pm
Which one of the following statements is false if you miss an exam for this course? - ANS-You
cannot retake it since no make-up exams will be given
True or False. Manufacturing in the U.S. will all be moved to other countries. - ANS-False
The United States accounts for about _______% of global manufacturing in 2013 - ANS-18
About ________% of the U.S. GDP came from US manufacturing - ANS-13
What kind of property is density a part of? Mechanical or physical? - ANS-Physical properties
If the young's modulus of AISI 4140 steel is 1, which value will most likely be the young's
modulus of plastics? - ANS-0.1
Can the young's modulus of a material be greatly changed by manufacturing processes? -
ANS-No
Can the yield strength of a material be greatly changed by manufacturing processes? - ANS-Yes
If the tensile strength of AISI 4140 steel is 1, which value will most likely be the tensile strength
of ceramics? - ANS-0.5
Can the ductility of a material be greatly changed by manufacturing processes? - ANS-Yes
Why is it hard to bend a paper clip back to it's original shape after bending it - ANS-Yield
strength increased by strain hardening
Generally speaking, as tensile strength increases, hardness - ANS-increases
What is not a purpose of heat treatment - ANS-To alter the shape of a part
What are the purposes of heat treatment - ANS-1. Increase strength and hardness
2. Decrease strength and hardness
, 3. Harden only the surface of a part without changing the interior properties
What is the most common heat treatment process? - ANS-Hardening
Steels are Fe-C alloys with less than about ______% Carbon content - ANS-2
What quenching media quenches fastest? - ANS-Water
Two products that usually need surface hardening are... - ANS-Shafts and gears
Which heat treatment process will give the maximum ductility to a machined metal part -
ANS-Full annealing
With heat treatment of steel parts, the faster the cooling rate, the ___________ the parts will be
after the heat treatment - ANS-harder
What heat treatment method cannot improve the treated metal's machinability? -
ANS-Quenching
In tempering, the workpiece needs to be heated below the - ANS-lower transformation
temperature
In annealing, the workpiece needs to be heated to the - ANS-upper transformation temperature
In normalizing, the workpiece needs to be heated above the - ANS-upper transformation
temperature
Normalizing gives ____________ steel than full annealing - ANS-stronger and more brittle
A steel bar is heated to a certain temperature and kept at that temperature for a long time.
Which diagram would you use to find out the crystallization structure of this steel at that
temperature? - ANS-Equilibrium diagram
A steel bar is heated to a high temperature and kept at that temperature for a long time. It then
is cooled down to ambient temperature at a constant given cooling rate. Which diagram would
you use to find out the crystallization structure of this steel at the ambient temperature -
ANS-Continuous cooling transformation diagram
(CCT)
Which one of the following material properties is the most important to determine if Chon and
Roy could succeed in their attempt to escape? - ANS-Young's modulus
If the bars were made from aluminum instead of steel, would Chon and Roy's escape be easier?
- ANS-Yes
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 lydiaomutho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now