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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

Silver metal
Invar
Duralumin
Hastelloy

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

Babbitt metal
Phosphor bronze
Nichrome
Monel metal

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Engineering Materials
Phosphor bronze contains

2.5% phosphorous
0.5% of phosphorous
1% phosphorous
None of these

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Engineering Materials
The electric process of steel making is especially adapted to

High speed tool steel
Magnet steel
Alloy and carbon tool steel
All of these

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Engineering Materials
The percentage of carbon in low carbon steel is

0.5%
0.3%
0.15%
0.05%

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Engineering Materials
Nodular iron has

Low melting point
High tensile strength
High machinability
All of these

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