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Engineering Materials

Engineering Materials
The property of a material which enables it to retain the deformation permanently, is called

Ductility
Malleability
Brittleness
Plasticity

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Engineering Materials
Muntz metal contains copper and zinc in the ratio of

2.5277777777778
40 : 60
2.1180555555556
0.88888888888889

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Engineering Materials
Compressive strength of grey cast iron in tonnes/cm is of the order of

57
35
1015
710

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Engineering Materials
Maximum percentage of carbon in ferrite is

0.00025
0.0025
0.0006
0.001

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Engineering Materials
Heavy duty leaf and coil springs contain carbon of the following order

0.002
0.005
0.01
0.008

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Engineering Materials
Which of the following impurity in cast iron makes it hard and brittle?

Phosphorus
Manganese
Sulphur
Silicon

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