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Engineering Materials

Engineering Materials
Manganese in steel increases its

Fluidity
Tensile strength
Ductility
Hardness

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

Phosphorus
Sulphur
Manganese
Silicon

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Engineering Materials
Permalloy is a

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

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Engineering Materials
The ultimate tensile strength and yield strength of most of the metals, when temperature falls from 0 to 100°C will

Decrease
First increase and then decrease
Increase
Remain same

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Engineering Materials
Cartridge brass can be

Formed into tube
Any one of these
Drawn into wires
Cold rolled into sheets

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Engineering Materials
Slow plastic deformation of metals under a constant stress is known as

Endurance
Creep
Fatigue
Plastic deformation

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