Exercise: Engineering Materials

Questions for: Engineering Materials

Which of the following iron exists at 910° C?
A:
α-iron
B:
β-iron
C:
γ-iron
D:
δ-iron
Answer: A
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The process which improves the machinability of steels, but lowers the hardness and tensile strength, is
A:
normalising
B:
full annealing
C:
process annealing
D:
spheroidising
Answer: D
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The nuts and bolts are made from silicon steel.
A:
Correct
B:
Incorrect
C:
D:
Answer: B
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In a unit cell of a body centred cubic space lattice, there are __________ atoms.
A:
six
B:
nine
C:
fourteen
D:
seventeen
Answer: B
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Steel containing upto 0.15% carbon, is known as
A:
mild steel
B:
dead mild steel
C:
medium carbon steel
D:
high carbon steel
Answer: B
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