Exam (elaborations)
EPRI: Materials – Questions & Verified Solutions
EPRI: Materials – Questions & Verified Solutions
[Show more]
Content preview
EPRI: Materials – Questions & Verified SolutionsFerrous Alloys ✔️Ans -What includes iron and at least 50% iron
alloys?
Degradation ✔️Ans -What is damage caused over time to
components/ materials by a range of physical processes à resulting in
component failure?
Additional Nuclear Safety Issues ✔️Ans -What type of material
degradation led to the following consequences:
-costly outages,
-increase regulatory oversight
-create losses due to the impact of cost, time, and effort of station
management and personnel
Corrosion of piping walls ✔️Ans -What type of material
degradation led to the following consequences:
-allow the release of high energy fluids
-challenge the performance of nuclear safety-related systems
-significant personnel injury
Degradation of RC Pressure Boundary ✔️Ans -What type of
material degradation led to the following consequences:
-release of radioactive materials
-reducing the defense-in-depth for the plant workers and the general public
from exposure to radiation
-LOCA (Loss of Coolant Accident)
-loss of core cooling which increases risk of fuel damage
Degradation of RC Pressure Boundary ✔️Ans -The following are
examples of which type of material degradation consequence:
-VC Summer: hot leg RC piping leakage (Nov '00)
-Davis Besse: head wastage (Feb '02)
-Tsuruga (Japan): pressurizer relief valve leak (Sep '03)
-South TX Project: bottom mounted inst. Nozzle leak (April '03)
-Quad Cities: steam dryer degradation (July '02)
,Stress Corrosion Cracking (SCC) ✔️Ans -What can occur under
certain conditions of high tensile stress, a corrosive environment, and
susceptible materials?
Metals ✔️Ans -What has a class of elements and/or compounds
which exhibit attributes:
-Lustrous appearance
-Opaque
-Good conductor of heat and electricity
-Can be deformed to some extent before breaking
-Oxidizes, that is, give up electrons in chemical reactions
-Solid at room temperature (mercury is an exception)
-High melting point
-Not normally found in a pure state, but must be refined from an ore
Metal ✔️Ans -What is a collection of millions of crystals composed
of different atoms held together by metallic bonds?
Alloys ✔️Ans -What is a mixture of two or more materials, one of
which is a metal?
Alloys ✔️Ans -What enhances metal properties by:
-Increase strength and/or hardness
-Enhance ductility
-Increase corrosion resistance
-Enhance strength and/or machinability
-Increase wear resistance
Alloys ✔️Ans -What is stronger than pure metals?
Alloys ✔️Ans -What has reduced electrical and thermal
conductivity?
Steel ✔️Ans -_______ is an alloy of iron and carbon
Iron ✔️Ans -Ferrous is latin for?
Ferrous Alloys ✔️Ans -What alloy is dependent on catching the key
element carbon?
, Ferrous Alloys ✔️Ans -cast iron, wrought iron, steel and stainless
steel are all examples of what alloy?
Non-ferrous Alloys ✔️Ans -What is composed predominantly of
elements other than iron?
Non-ferrous Alloys ✔️Ans -·copper-based alloys, cobalt-based
alloys (Stellites), zirconium based (Zircalloys), nickel based (InconelTM) are
all examples of what alloy?
Non-ferrous Alloys ✔️Ans -examples of what alloy are commonly
used in nuclear power plants?
Strength ✔️Ans -What is the measure of the ability of a material to
SUPPORT an applied load (also ability to resist deformation)?
Ductility ✔️Ans -What is the ability of a material to deform easily
on application of tensile force?
Ductility ✔️Ans -What is the ability of a material to withstand
plastic deformation without rupture?
Ductility ✔️Ans -What is the ability of a material to undergo plastic
deformation prior to fracture?
Hardness ✔️Ans -What is the property of a material that enables it
to resist plastic deformation, penetration, indentation, and scratching?
Machinability ✔️Ans -How metal reacts to mechanical deformation
by removing CHIPS with respect to amount of metal effectively removed and
surface finish attainable is?
Machinability ✔️Ans -The mechanical properties of the metal will
be the factors that influence the _____________ of a metal
Conductivity ✔️Ans -What is the property of conducting heat or
electric current?
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 Studycafe. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$12.20. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81113 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now