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Engineering Materials

Engineering Materials
Aluminium bronze contains aluminium and copper in the ratio of

0.47916666666667
2.1180555555556
2.5277777777778
40 : 60

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Engineering Materials
Recrystallization temperature can be lowered by

All of these
Purification of metal
Working at lower temperature
Grain refinement

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Engineering Materials
Which of the following is used for bearing liner?

Bell metal
Gun metal
Bronze
Babbitt metal

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Engineering Materials
Perminvar alloy having constant permeability is an alloy of

Iron, zinc and bismuth
Copper, nickel and antimony
Nickel, copper and iron
Nickel, copper and zinc

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Engineering Materials
Quenching is not necessary when hardening is done by

Nitriding
Case hardening
Any one of these
Flame hardening

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Engineering Materials
Cast iron is a

Ductile material
Malleable material
Brittle material
Tough material

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