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Mechanical Engineering - Engineering Materials

Exercise : Engineering Materials - Section 1
6.
Cast iron is a
ductile material
malleable material
brittle material
tough material
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The hardness is the property of a material due to which it
can be drawn into wires
breaks with little permanent distortion
can cut another metal
can be rolled or hammered into thin sheets
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Malleable cast iron is produced
by adding magnesium to molten cast iron
by quick cooling of molten cast iron
from white cast iron by annealing process
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Smelting is the process of
removing the impurities like clay, sand etc. from the iron ore by washing with water
expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns
reducing the ore with carbon in the presence of a flux
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The percentage of carbon in cast iron varies from
0.1 to 0.5
0.5 to 1
1 to 1.7
1.7 to 4.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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