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Engineering Materials

Engineering Materials
The bond formed by transferring electrons from one atom to another is called

Metallic bond
None of these
Ionic bond
Covalent bond

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Engineering Materials
Large forgings, crank shafts, axles normally contain carbon up to

0.20 to 0.45%
0.45 to 0.55%
0.55 to 1.0%
0.05 to 0.20%

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Engineering Materials
Phosphor bronze contains

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

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Engineering Materials
Admiralty gun metal contains

88% copper, 10% tin and rest zinc
Iron scrap and zinc
63 to 67% nickel and 30% copper
Alloy of tin, lead and cadmium

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Engineering Materials
Age-hardening is related with

Duralumin
Gun metal
Stainless steel
German silver

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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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