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Engineering Materials

Engineering Materials
The property of a material which enables it to retain the deformation permanently, is called

Plasticity
Ductility
Malleability
Brittleness

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Engineering Materials
The ability of a material to resist softening at high temperature is known as

Creep
Hot tempering
Fatigue
Hot hardness

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Engineering Materials
Which of the following impurity in cast iron makes it hard and brittle?

Silicon
Phosphorus
Sulphur
Manganese

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Engineering Materials
Weld decay is the phenomenon found with

Mild steel
Nonferrous materials
Stainless steel
Cast iron

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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
Iron-carbon alloys containing 1.7 to 4.3% carbon are known as

None of these
Hypereutectic cast irons
Eutectic cast irons
Hypoeutectic cast irons

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