CWB Level 1 Metallurgy and Material Specification QUESTIONS & ANSWERS(RATED A+)
2 views 0 purchase
Course
CWB Level 1 Metallurgy and Material Specification
Institution
CWB Level 1 Metallurgy And Material Specification
Select the non-ferrous metal from the following: (Multiple choice)
Question 1 options:
A) Wrought iron.
B) Copper.
C) Carbon steel.
D) Stainless steel. - ANSWERB) Copper.
Which of the following materials is a ferrous alloy? (Multiple choice)
Question 2 options:
A) Aluminum.
B) Nickel.
C...
CWB Level 1 Metallurgy and Material
Specification QUESTIONS &
ANSWERS(RATED A+)
Select the non-ferrous metal from the following: (Multiple choice)
Question 1 options:
A) Wrought iron.
B) Copper.
C) Carbon steel.
D) Stainless steel. - ANSWERB) Copper.
Which of the following materials is a ferrous alloy? (Multiple choice)
Question 2 options:
A) Aluminum.
B) Nickel.
C) Chromium.
D) Stainless steel. - ANSWERD) Stainless steel.
Alloys are mixtures of a metal with: (Multiple choice)
Question 3 options:A) Only other metals.B) Other non-metals.C) Both metals and
non-metals.D) Iron. - ANSWERC) Both metals and non-metals.
For normalizing, the steel is heated slightly higher than annealing, followed by air
cooling. This type of cooling process produces a grain structure of: (Multiple choice)
Question 4 options:A) Cementite/pearlite.B) Fine ferrite/pearlite.C) Coarse
ferrite/pearlite.D) Fine austenite/pearlite. - ANSWERB) Fine ferrite/pearlite.
What is the result of hot-shortness in a metal? (Multiple choice)
Question 5 options:A) Loss of impact strength.B) Increased toughness.C) Loss of
ductility.D) Increased malleability. - ANSWERC) Loss of ductility.
Hot-rolling is carried out in what region? (Multiple choice)
Question 6 options:A) The austenite region.B) The pearlite regionC) The cementite
region.D) The ferrite region. - ANSWERA) The austenite region.
When thermal stress relief is completed, nondestructive testing is often postponed
for 48 hours to ensure that no delayed post-stress relief cracking occurred:
(True/False) - ANSWERfalse
When thermal stress relief is completed, nondestructive testing is often postponed
for 24 hours to ensure that no delayed post-stress relief cracking occurred
What are the three main components when charging a blast furnace? (Multiple
choice)
,Question 9 options:A) Iron ore, nickel pellets, and limestone.B) Iron ore, manganese,
and cokeC) Iron ore, limestone, and coke.D) Iron ore, nickel pellets, and coke. -
ANSWERC) Iron ore, limestone, and coke.
The three major steel groups are carbon steels, low-alloy steels and: (Multiple
choice)
Question 10 options:A) Manganese steels.B) Alloy steelsC) Carbon-molybdenum
steels.D) Carbon-nitrate steels. - ANSWERB) Alloy steels
The grouping of steels referred to as high strength low alloy steels (HLSA) typically
exhibit the following attributes: (Multiple choice)
Question 11 options:A) A high carbon content, high strength, and a large grain
size.B) A high carbon content, high strength, and a fine grain size.C) A low carbon
content, high strength, and a fine grain size.D) A low carbon content, poor
toughness, and a large grain size. - ANSWERC) A low carbon content, high strength,
and a fine grain size.
The carbon content (%C) for structural steel plates falls in the range of: (Multiple
choice)
Question 12 options:A) 0.05% - 0.10%B) 0.15% - 0.30%C) 0.5% - 0.80%D) 1.70% -
2.50% - ANSWERcheck answer
Adding silicon to low-carbon steel decreases the steel's magnetic properties.
(True/False) - ANSWERfalse
it ends up having a high magnetic permeability
Which element contained in HSLA steels will improve resistance to atmospheric
corrosion? (Multiple choice)
Question 14 options:A) Copper.B) BoronC) Oxygen.D) Carbon. - ANSWERA)
Copper.
Austenitic stainless steel is a mixture of chromium and enough nickel to remain
austenitic over the whole temperature range and therefore does not transform on
heating or cooling. (True/False) - ANSWERtrue.
When working with stainless steels, what does the term pickling refer to? (Multiple
choice)
Question 16 options:A) A chemical treatment to remove surface iron contamination
only.B) A chemical treatment to remove the mill scale prior to weldingC) A chemical
treatment to corrode the surface in a controlled fashion.D) A chemical treatment to
corrode the surface in an uncontrolled fashion. - ANSWERC) A chemical treatment
to corrode the surface in a controlled fashion.
What series of stainless steel is commonly used in washing machines, cutlery, the
automotive industry, and the food and beverage industry? (Multiple choice)
Question 17 options:A) 200 series.B) 300 series.C) 400 series.D) 316 series. -
ANSWERA) 200 series.
, What series of stainless steel is commonly used in agriculture equipment, turbines,
petrochemicals, fasteners, and heat exchangers? (Multiple choice)
Question 18 options:A) 200 series.B) 300 seriesC) 400 seriesD) 316 series. -
ANSWERC) 400 series
The carbon content of a specific steel grade, e.g. 4340: (Multiple choice)
Question 19 options:A) depends only on the nickel content.B) depends only on the
type of furnace in which the steel is made.C) will not be uniform, but will fall within a
specified range.D) can be whatever the client requires. - ANSWERB) depends only
on the type of furnace in which the steel is made.
double check this answer
What designates that AISI 4340 refers to nickel-chromium-molybdenum steel?
(Multiple choice)
Question 20 options:A) The first digitB) The first two digitsC) The first three digitsD)
The last digit - ANSWERB) The first two digits
How many types of steel are covered by CSA G40.21? (Multiple choice)
Question 21 options:A) 5B) 6C) 7D) 8 - ANSWERC) 7
P groupings in ASME Section IX are used to group steels for procedure qualification
testing. (True/False) - ANSWERTrue
If more than 2% carbon is added to iron, the resulting material: (Multiple choice)
Question 23 options:A) can no longer be forged.B) is called cast iron.C) will contain
cementite and pearlite.D) will contain martensite and pearlite. - ANSWERB) is called
cast iron.
Metals have a crystalline structure in which the atoms are arranged in an irregular
pattern. (True/False) - ANSWERfalse
At temperatures above 910 °C (1670 °F), iron exists in which crystalline structure?
(Multiple choice)
Question 25 options:A) FCCB) BCCC) HCPD) PCC - ANSWERA) FCC
Ferrite, austenite, and cementite are know as: (Multiple choice)
Question 26 options:A) ParticlesB) ElementsC) PhasesD) Atoms - ANSWERC)
Phases
If more than 0.8% carbon is added to iron, the resulting material: (Multiple choice)
Question 27 options:A) can no longer be forged.B) is called cast iron.C) will contain
cementite and pearlite.D) will contain martensite and pearlite. - ANSWERcheck this
answer
From the materials listed below, choose the metal with the highest thermal
conductivity. (Multiple choice)
Question 28 options:A) Silver.B) Gold.C) Aluminum.D) Copper. - ANSWERA) Silver.
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 EFT, 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 this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller papersbyjol. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R261,12. You're not tied to anything after your purchase.
