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Engineering Materials

Engineering Materials
The percentage of carbon in low carbon steel is

0.3%
0.05%
0.5%
0.15%

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Engineering Materials
Iron-carbon alloys containing carbon ________ 4.3% are known as hyper-eutectic cast irons.

More than
Less than
None of these
Equal to

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Engineering Materials
Which of the following element results in presence of free graphite in C.I.?

Silicon
Carbon
Manganese
Sulphur

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Engineering Materials
Which of the following property is desirable for materials used in tools and machines?

Malleability
Elasticity
Ductility
Plasticity

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Engineering Materials
Addition of copper to aluminium results in

Improvement of casting characteristics
Improvement of corrosion resistance
Improving machinability
One of the best known age and precipitation hardening systems

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Engineering Materials
Free cutting steels

Is used where rapid machining is the prime requirement
Can be cut freely
Contain carbon in free from
Require minimum cutting force

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