Which of the following material has maximum malleability?

14) The ability of a material to absorb energy in the plastic range is called

Answer is:

resilience

Explanation:

Resilience: Resilience is the ability of a metal to absorb energy and resist soft and impact load.

Creep: When a metal is subjected to a constant load (below its yield point), at high temperature, for a prolonged period of time, it undergoes a permanent deformation. This tendency of the metal is called creep.

Toughness: When a huge external force is applied on a metal, the metal will experience fracture. Toughness is the ability of a metal to resist fracture. The ability of a material to resist fracture due to high impact loads, is called toughness.

15) The malleability is the property of a material by virtue of which a material

regains its shape and size after the removal of external forces

retains the deformation produced under load permanently

can be drawn into wires with the application of a tensile force

can be rolled or hammered into thin sheets

Answer is:

can be rolled or hammered into thin sheets

Explanation:

Ductility: Ductility is the property by which a metal can be drawn into thin wires. It is determined by percentage elongation and percentage reduction in area of a metal.

Malleability: Malleability is the property by which a metal can be rolled into thin sheets. Highly malleable metals (like Mild Steel) are extensively used in making sheet metals.

16) The stiffness is the ability of a material to resist

deformation under stress

fracture due to high impact loads

externally applied forces with breakdown or yielding

none of the above

Answer is:

deformation under stress

Explanation:

Stiffness: When an external force is applied on a metal, it develops an internal resistance. The internal resistance developed per unit area is called stress. Stiffness is the ability of a metal to resist deformation under stress.

17) Iron ore is, usually, found in the form of

Answer is:

all of these

Explanation:

Iron ore is, usually, found in the form of

1. As oxides (Haematite, Magnetite, Limonite)

2. As Carbonates ( Siderite)

3. As sulphides (Pyrite)

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Which of the following material has maximum malleability?

Lead

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Related Engineering Materials MCQ with Answers

14) The ability of a material to absorb energy in the plastic range is called

resilience

15) The malleability is the property of a material by virtue of which a material

can be rolled or hammered into thin sheets

16) The stiffness is the ability of a material to resist

deformation under stress

17) Iron ore is, usually, found in the form of

all of these

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