Exercise: Engineering Materials

Questions for: Engineering Materials

A coarse grained steel
A:
is less tough and has a greater tendency to distort during heat treatment
B:
is more ductile and has a less tendency to distort during heat treatment
C:
is less tough and has a less tendency to distort during heat treatment
D:
is more ductile and has a greater tendency to distort during heat treatment
Answer: A
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The upper critical point varies according to the carbon content in steel.
A:
True
B:
False
C:
D:
Answer: A
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The defect which takes place due to imperfect packing of atoms during crystallisation is known as
A:
line defect
B:
surface defect
C:
point defect
D:
none of these
Answer: C
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A steel containing ferrite and pearlite is
A:
hard
B:
soft
C:
tough
D:
hard and tough
Answer: B
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Which of the following metal shrinks most from molten state to solid state?
A:
Cast iron
B:
Cast steel
C:
Brass
D:
Admirality metal
Answer: D
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