CWB LEVEL 1 METALLURGY AND MATERIAL
SPECIFICATION QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED 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. Ans✓✓✓B) Copper.
Which of the following materials is a ferrous alloy? (Multiple choice)
Question 2 options:
A) Aluminum.
B) Nickel.
C) Chromium.
D) Stainless steel. Ans✓✓✓D) 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. Ans✓✓✓C) 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. Ans✓✓✓B) 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. Ans✓✓✓C)
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. Ans✓✓✓A) 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) Ans✓✓✓false
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. Ans✓✓✓C) 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. Ans✓✓✓B) 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. Ans✓✓✓C)
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% Ans✓✓✓check answer
Adding silicon to low-carbon steel decreases the steel's magnetic
properties. (True/False) Ans✓✓✓false
, 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.
Ans✓✓✓A) 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) Ans✓✓✓true.
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. Ans✓✓✓C) 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. Ans✓✓✓A) 200 series.
SPECIFICATION QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED 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. Ans✓✓✓B) Copper.
Which of the following materials is a ferrous alloy? (Multiple choice)
Question 2 options:
A) Aluminum.
B) Nickel.
C) Chromium.
D) Stainless steel. Ans✓✓✓D) 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. Ans✓✓✓C) 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. Ans✓✓✓B) 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. Ans✓✓✓C)
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. Ans✓✓✓A) 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) Ans✓✓✓false
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. Ans✓✓✓C) 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. Ans✓✓✓B) 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. Ans✓✓✓C)
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% Ans✓✓✓check answer
Adding silicon to low-carbon steel decreases the steel's magnetic
properties. (True/False) Ans✓✓✓false
, 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.
Ans✓✓✓A) 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) Ans✓✓✓true.
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. Ans✓✓✓C) 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. Ans✓✓✓A) 200 series.
