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Engineering Materials

Engineering Materials
Age hardening is related to

Duralumin
Silver
Brass
Copper

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

Hardening and cold working
Full annealing
Martempering
Normalizing

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Engineering Materials
Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio

40 : 60
2.9375
2.1180555555556
30 : 70

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Engineering Materials
The hardness of steel primarily depends on

Heat treatment employed
Shape of carbides and their distribution in iron
Percentage of carbon
Percentage of alloying elements

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Engineering Materials
Isotropic materials are those which have the same

Electric and magnetic properties in all directions
Thermal properties in all directions
Stresses induced in all directions
Elastic properties in all directions

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Engineering Materials
Process of Austempering results in

Formation of bainite structure
Martenistic structure
Lamellar layers of carbide distributed throughout the structure
Carburised structure

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MORE MCQ ON Engineering Materials

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