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Materials and Construction

Materials and Construction
Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese.

1.5-2
3.5-4.5
44179
44021

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Materials and Construction
18/8 steel is a/an __________ stainless steel.

Ferritic
Austenitic
None of these
Martensitic

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Materials and Construction
Failure of a material is termed as fatigue failure, if it fails below the yield point. The resistance to fatigue failure of a material is measured by the

Endurance limit
Ultimate tensile strength (U.T.S.)
Elastic limit
None of these

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Materials and Construction
Cast irons are generally specified by their

Tensile strength
Manufacturing proces
Hardness
Carbon content

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Materials and Construction
Zircalloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium

And copper
Tin, nickel, iron and chromium
None of these
And graphite

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Materials and Construction
Percentage of silver in German silver is

5
20
10
0

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