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Mechanical Engineering - Engineering Materials

Exercise : Engineering Materials - Section 3
11.
Which of the following iron exist between 910° C and 1403° C?
α-iron
β-iron
γ-iron
δ-iron
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The material in which the atoms are arranged chaotically, is called
amorphous material
mesomorphous material
crystalline material
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
In basic bessemer process, the furnace is lined with
silica bricks
a mixture of tar and burnt dolomite bricks
either (a) or (b)
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Polyvinylchloride (PVC) is a __________ material.
thermoplastic
thermosetting
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
In a unit cell of close packed hexagonal space lattice, there are twenty four atoms.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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