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Engineering Materials

Engineering Materials
Shock resistance of steel is increased by adding

Nickel and chromium
Chromium
Sulphur, lead and phosphorus
Nickel

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Engineering Materials
The aluminium alloy, mainly used, for anodized utensil manufacture, is

Magnalium
Y-alloy
Hindalium
Duralumin

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Engineering Materials
Nickel when added to copper improves

Strength and ductility
Machinability
Hardness
Hardness and strength

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Engineering Materials
When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces

White cast iron
Malleable cast iron
Alloy cast iron
Nodular cast iron

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Engineering Materials
Hardness of upper bainite (acicular structure) is about

RC 48
RC 57
RC 65
RC 80

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Engineering Materials
In which of the following cases, consideration of creep is important

Gas turbine blades
Flywheel of steam engine
Cycle chains
Cast iron pipes

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