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Engineering Materials

Engineering Materials
In malleable iron, carbon is present in the form of

Flakes
Nodular aggregates of graphite
Free carbon
Cementite

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Engineering Materials
Lead is poured into the joint between two pipes. These pipes may be made of

Asbestos cement
Concrete
Cast iron
Vitrified clay

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Engineering Materials
Shock resistance of steel is increased by adding

Chromium
Nickel and chromium
Sulphur, lead and phosphorus
Nickel

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Engineering Materials
Silicon when added to copper improves

Hardness and strength
Strength and ductility
Machinability
Hardness

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Engineering Materials
The hardness and tensile strength in austenitic stainless steel can be increased by

Normalizing
Full annealing
Martempering
Hardening and cold working

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Engineering Materials
Which of the following is not the correct method of increasing fatigue limit?

Surface decarburisation
Nitriding of surface
Cold working
Shot peening

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