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Engineering Materials

Engineering Materials
The ability of a material to absorb energy in the plastic range is called

Resilience
Fatigue strength
Creep
Toughness

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Engineering Materials
Wrought iron

Is a ductile material
Can be easily forged or welded
Cannot stand sudden and excessive shocks
All of these

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Engineering Materials
Foundry crucible is made of

Lead
Graphite
German silver
Mild steel

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Engineering Materials
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio

50 : 20 : 10 : 20
30 : 20 : 30 : 20
50 : 20 : 20 : 10
40 : 30 : 20 : 10

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Engineering Materials
Permalloy is a

Kind of stainless steel
Polymer
Nickel and iron alloy having high permeability
None ferrous alloy

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Engineering Materials
Chromium when added to steel _________ the tensile strength.

Increases
Does not effect
Decreases
None of these

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