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IMSE 250 Exam 1 Study Spring 2024
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IMSE 250 Exam 1 Study Spring 2024
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IMSE 250 Exam 1 Study Spring 2024__________ do not exhibit a yield point (the plateau yielding phenomenon on the stress
strain curve), so an offset yield point (commonly set at 0.2% strain) is used on these
materials. - ANSWER-Aluminum alloys
__________ eliminates the most of effects of the strain hardening, which would reduce
the difficulty of performing secondary machining operations on the forged workpiece. -
ANSWER-Hot Forging
A six sigma process is one in which 99.99966% of all opportunities to produce some
features of a part are statistically expected to be free of defects (3.4 defective features
per million opportunities). Sigma (σ) refers to the statistical concept of __________. -
ANSWER-Standard deviation
A steel bar (carbon content is known) is heated above the Austenite temperature and
kept at that temperature for a long time (fully Austenitized). It then is cooled down to the
ambient temperature at a constant given cooling rate (temperature decreases over time
throughout the cooling curve). Which diagram would you use to find out the
crystallization structure of this steel at the ambient temperature? - ANSWER-(B)
Continuous-Cooling-Transformation (CCT) diagram
Among the following five groups of manufacturing processes, which one exploits the
ductility of certain metallic materials to produce parts?
(A) Casting
(B) Material removal.
(C) Deformation.
(D) Consolidation.
(E) Additive manufacturing. - ANSWER-Deformation
Annealing in a furnace gives ___________________ steel than normalizing in still air. -
ANSWER-Weaker and more ductile
Continue with the "copper tube bending" question described in Questions 9. The
ductility of the copper tube at the bent location will be __________.
(A) increased
(B) decreased
(C) the same - ANSWER-Decreased
Continue with the "copper tube bending" question described in Questions 9. The
Young's modulus of the copper tube at the bent location will be ___________.
(A) increased
(B) decreased
(C) the same - ANSWER-the same
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