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Engineering Materials

Engineering Materials
Nodular cast iron is produced by adding ________ to the molten cast iron.

Copper
Nickel
Chromium
Magnesium

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Engineering Materials
German silver contains

1% silver
5% silver
No silver
2% silver

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Engineering Materials
Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

Manganese
Phosphorus
Sulphur
Silicon

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Engineering Materials
Which of the following elements does not impart hardness to steel?

Chromium
Silicon
Copper
Nickel

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Engineering Materials
Cartridge brass can be

Any one of these
Cold rolled into sheets
Drawn into wires
Formed into tube

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

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

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