IMSE 250 EXAM 1 QUESTIONS AND ANSWERS | 2026 UPDATE
| 100% CORRECT.
Every moment on the job in a machine shop - (answer)When should you wear eye protection?
Yes, you need to wear eye protection - (answer)Do you need to wear eye protection every time you visit
a machine shop?
True - (answer)Both steels and cast iron are iron-carbon alloys. (t/f)
easy - (answer)Aluminum is ____ to be recycled and reused.
Yes - (answer)Can both brasses and bronzes contain copper?
crystalline - (answer)Atoms in most metals have a ____ structure.
Face-centered cubic - (answer)Generally speaking, which structure has a better ductility (ability to
deform with fracture)
higher - (answer)Generally speaking, metals have ____ thermal conductivity than plastics.
Composites - (answer)On Boeing 787 airplanes, which type of material is used the most?
Cu+Ni - (answer)What materials are used to mint the 25 cent coin?
physical property - (answer)Density is part of ______
0.1 - (answer)If we let the young's modulus of AISI 4140 steel be 1, which value will most likely be
young's modulus of plastics?
, IMSE 250 EXAM 1 QUESTIONS AND ANSWERS | 2026 UPDATE
| 100% CORRECT.
No - (answer)Can the young's modulus be greatly changed by manufacturing processes?
0.5 - (answer)If we let the tensile strength of AISI steel be 1, which value will most likely be the tensile
strength of ceramics?
Yield strength increased by strain hardening - (answer)Why does it feel hard to bend the paper clip back
to shape?
increases - (answer)Generally speaking, as tensile strength increases, harness ______.
Low Carbon Steel - (answer)High Ductility Metal
Cast Iron - (answer)Low Ductility Metal
To alter the shape - (answer)Which one of the following is NOT amount the purposes of heat treatment?
Austenite - (answer)In the Iron Carbon equilibrium diagram, which of the following phases exists at a
high temperature (>912 C) environment?
Hardening - (answer)Which one of the following represents the most common heat treatment
processes?
2% - (answer)Generally speaking, steels are Fe-C alloys with less than about __ carbon content?
Martensite>Bainite>Pearlite - (answer)Which of the following order represents the hardness order (from
hardest to softest) of the structures?
| 100% CORRECT.
Every moment on the job in a machine shop - (answer)When should you wear eye protection?
Yes, you need to wear eye protection - (answer)Do you need to wear eye protection every time you visit
a machine shop?
True - (answer)Both steels and cast iron are iron-carbon alloys. (t/f)
easy - (answer)Aluminum is ____ to be recycled and reused.
Yes - (answer)Can both brasses and bronzes contain copper?
crystalline - (answer)Atoms in most metals have a ____ structure.
Face-centered cubic - (answer)Generally speaking, which structure has a better ductility (ability to
deform with fracture)
higher - (answer)Generally speaking, metals have ____ thermal conductivity than plastics.
Composites - (answer)On Boeing 787 airplanes, which type of material is used the most?
Cu+Ni - (answer)What materials are used to mint the 25 cent coin?
physical property - (answer)Density is part of ______
0.1 - (answer)If we let the young's modulus of AISI 4140 steel be 1, which value will most likely be
young's modulus of plastics?
, IMSE 250 EXAM 1 QUESTIONS AND ANSWERS | 2026 UPDATE
| 100% CORRECT.
No - (answer)Can the young's modulus be greatly changed by manufacturing processes?
0.5 - (answer)If we let the tensile strength of AISI steel be 1, which value will most likely be the tensile
strength of ceramics?
Yield strength increased by strain hardening - (answer)Why does it feel hard to bend the paper clip back
to shape?
increases - (answer)Generally speaking, as tensile strength increases, harness ______.
Low Carbon Steel - (answer)High Ductility Metal
Cast Iron - (answer)Low Ductility Metal
To alter the shape - (answer)Which one of the following is NOT amount the purposes of heat treatment?
Austenite - (answer)In the Iron Carbon equilibrium diagram, which of the following phases exists at a
high temperature (>912 C) environment?
Hardening - (answer)Which one of the following represents the most common heat treatment
processes?
2% - (answer)Generally speaking, steels are Fe-C alloys with less than about __ carbon content?
Martensite>Bainite>Pearlite - (answer)Which of the following order represents the hardness order (from
hardest to softest) of the structures?
