What is a metal’s ability to withstand wear, abrasion and penetration called?

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ALP CBT 2 Fitter Previous Paper: Held on 21 Jan 2019 Shift 1

Answer 1

Explanation:

Hardness:

Hardness is a measure of a metal's ability to withstand scratching, wear, abrasion, and penetration.
The maximum hardness of steel is a function of its Carbon content.
It increases as the percentage of carbon increases.

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Mechanical properties of metal:

Ductility	A metal is said to be ductile when it can be drawn out into wires under tension without rupture. Wire drawing depends upon the ductility of a metal. A ductile metal must be both strong and plastic. Copper and aluminium are good examples of ductile metals.
Malleability	Malleability is the property of a metal by which it can Be extended in any direction by hammering, rolling, etc. without causing rupture. Lead is an example of a malleable metal.
Hardness	Hardness is a measure of a metal's ability to withstand scratching, wear, and abrasion, indentation by harder bodies.
Brittleness	Brittleness is the property of a metal which permits no permanent distortion before breaking. Cast iron is an example of a brittle metal which will break rather than bend under shock or impact.
Toughness	Toughness is the property of a metal to withstand shock or impact. Toughness is the property opposite to brittleness. Wrought iron is an example of tough metal.
Tenacity	The tenacity of a metal is its ability to resist the effect of tensile forces without rupturing. Mild steel, Wrought Iron, and copper are some examples of tenacious metals.
Elasticity	The elasticity of a metal is its power of returning to its original shape after the applied force is released. Properly heat-treated spring is a good example of elasticity.
Resistivity	It is the property of a substance due to which it opposes the flow of the electric current.