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Engineering Materials

Engineering Materials
Hardness of lower bainite (tempered martensite) is about

RC 65
RC 57
RC 48
RC 80

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Engineering Materials
Beryllium bronze contains

99% copper and 1% beryllium
60% copper and 40% beryllium
97.75% copper and 2.25% beryllium
80% copper and 20% beryllium

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Engineering Materials
In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion.

Sulphur
Phosphorus
Manganese
Silicon

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Engineering Materials
The metal suitable for bearings subjected to light loads, is

Silicon bronze
Monel metal
White metal
Phosphor bronze

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Engineering Materials
German silver contains

1% silver
5% silver
2% silver
No silver

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Engineering Materials
In compression, a prism of brittle material will break

By crushing into thousands of pieces
By forming a bulge
By shearing along oblique plane
In direction perpendicular to application of load

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