Exercise: Engineering Materials

Questions for: Engineering Materials

Induction hardening is basically a
A:
carburising process
B:
surface hardening process
C:
core-hardening process
D:
none of these
Answer: B
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Grey cast iron has
A:
carbon in the form of free graphite
B:
high tensile strength
C:
low compressive strength
D:
all of these
Answer: A
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Which of the following statement is true about brittle fracture?
A:
High temperature and low strain rates favour brittle fracture
B:
Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture
C:
Brittle fracture is always preceded by noise
D:
Cup and cone formation is characteristic for brittle materials
Answer: B
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Which of the following steel making process is being adopted at Rourkela Steel Plant?
A:
Bessemer process
B:
Open-hearth process
C:
Electric process
D:
L-D process
Answer: D
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The ability of a material to undergo large permanent deformation with the application of a tensile force, is called ductility.
A:
Correct
B:
Incorrect
C:
D:
Answer: A
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