IMSE 250 FINAL | QUESTIONS AND ANSWERS | 2026 UPDATE |
SOLVED 100% CORRECT.
Cr, W, and V are commonly used metal elements added to steels to produce cutting tools. They all have
a _________ crystalline structure. - (answer)body-centered cubic
(2) Please judge the following statement: units that we usually use to define strain are mm and inch. -
(answer)F
(3) What is the name of the copper-zinc alloy? - (answer)brass
Which one of the following materials has the lowest carbon content? - (answer)(A) Cold finish 1040
carbon steel
Please judge the following statement: units that we usually use to define stress are N and kN (newtons).
- (answer)F
) Stainless steel's resistance to corrosion and staining and low maintenance make it an ideal material for
many applications. Besides carbon and iron, stainless steel must also have __________ (element). -
(answer)chromium
Among the following five groups of manufacturing processes, which one exploits the ductility of certain
metallic materials to produce parts? - (answer)deformation
The ductility of a steel test specimen can be found out by studying ___________________. - (answer)(B)
the ability of the specimen to stretch before it fractures
Questions 9-13: We feel that it is harder to bend the paper clip back to the original shape than to bend it
over initially because of the strain hardening effect. During this process, some material properties at the
bending location are changed. - (answer)increased
0) Continue with the "paperclip bending" question described in Questions 9. The Young's modulus of the
steel wire at the bent location will be ___________. - (answer)the same
, IMSE 250 FINAL | QUESTIONS AND ANSWERS | 2026 UPDATE |
SOLVED 100% CORRECT.
Continue with the "paperclip bending" question described in Questions 9. The ductility of the steel wire
at the bent location will be _____. - (answer)decreased
Please identify what type(s) of deformation happened during this paper clip bending process described
in Questions 9. - (answer)plastic and elastic deformation
The steel wire to make paper clips as shown in Question 9 is manufactured by (wire) drawing, which
belongs to ______ material processing. - (answer)deformation
Which material is most likely to be an engineering ceramic material such as silicon nitride, silicon
carbide, and a large number of oxides (instead of other types of engineering materials)? - (answer)A
) Which material is the most ductile - (answer)C
Which material is the stiffest (see diagram in Question 14)? - (answer)A
) Two samples (that generate curves A and C in diagram in Question 14) after the above tensile tests are
shown as below. Please judge which one is more likely the sample characterized by the above stress-
strain curve C? - (answer)B
Generally speaking, for a steel, as its tensile strength decreases, its hardness __________. -
(answer)decreases
Young's modulus is one of the ___________ of an engineering material. - (answer)mechanical properties
__________ do not exhibit a yield point, so an offset yield point (commonly set at 0.2% strain) is used on
these materials. - (answer)aluminum alloys
SOLVED 100% CORRECT.
Cr, W, and V are commonly used metal elements added to steels to produce cutting tools. They all have
a _________ crystalline structure. - (answer)body-centered cubic
(2) Please judge the following statement: units that we usually use to define strain are mm and inch. -
(answer)F
(3) What is the name of the copper-zinc alloy? - (answer)brass
Which one of the following materials has the lowest carbon content? - (answer)(A) Cold finish 1040
carbon steel
Please judge the following statement: units that we usually use to define stress are N and kN (newtons).
- (answer)F
) Stainless steel's resistance to corrosion and staining and low maintenance make it an ideal material for
many applications. Besides carbon and iron, stainless steel must also have __________ (element). -
(answer)chromium
Among the following five groups of manufacturing processes, which one exploits the ductility of certain
metallic materials to produce parts? - (answer)deformation
The ductility of a steel test specimen can be found out by studying ___________________. - (answer)(B)
the ability of the specimen to stretch before it fractures
Questions 9-13: We feel that it is harder to bend the paper clip back to the original shape than to bend it
over initially because of the strain hardening effect. During this process, some material properties at the
bending location are changed. - (answer)increased
0) Continue with the "paperclip bending" question described in Questions 9. The Young's modulus of the
steel wire at the bent location will be ___________. - (answer)the same
, IMSE 250 FINAL | QUESTIONS AND ANSWERS | 2026 UPDATE |
SOLVED 100% CORRECT.
Continue with the "paperclip bending" question described in Questions 9. The ductility of the steel wire
at the bent location will be _____. - (answer)decreased
Please identify what type(s) of deformation happened during this paper clip bending process described
in Questions 9. - (answer)plastic and elastic deformation
The steel wire to make paper clips as shown in Question 9 is manufactured by (wire) drawing, which
belongs to ______ material processing. - (answer)deformation
Which material is most likely to be an engineering ceramic material such as silicon nitride, silicon
carbide, and a large number of oxides (instead of other types of engineering materials)? - (answer)A
) Which material is the most ductile - (answer)C
Which material is the stiffest (see diagram in Question 14)? - (answer)A
) Two samples (that generate curves A and C in diagram in Question 14) after the above tensile tests are
shown as below. Please judge which one is more likely the sample characterized by the above stress-
strain curve C? - (answer)B
Generally speaking, for a steel, as its tensile strength decreases, its hardness __________. -
(answer)decreases
Young's modulus is one of the ___________ of an engineering material. - (answer)mechanical properties
__________ do not exhibit a yield point, so an offset yield point (commonly set at 0.2% strain) is used on
these materials. - (answer)aluminum alloys
