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Engineering Materials

Engineering Materials
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is

Duralumin
Invar
Silver metal
Hastelloy

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Engineering Materials
Process of Austempering results in

Lamellar layers of carbide distributed throughout the structure
Martenistic structure
Carburised structure
Formation of bainite structure

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

0.88888888888889
2.5277777777778
40 : 60
2.1180555555556

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Engineering Materials
Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?

Nichrome
Monel metal
Babbitt metal
Phosphor bronze

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Engineering Materials
Recrystallization temperature can be lowered by

All of these
Purification of metal
Working at lower temperature
Grain refinement

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Engineering Materials
The hardness is the property of a material due to which it

Can be rolled or hammered into thin sheets
Can cut another metal
Can be drawn into wires
Breaks with little permanent distortion

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MORE MCQ ON Engineering Materials

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