Virtual Labs

Which of the following statement is correct

a: Energy stored in the body, when strained within the elastic limit is known as strain energy Explanation

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b: The maximum strain energy which can be stored in a body is termed as proof resilience Explanation

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c: The proof resilience/unit volume of material is known as modulus of resilience Explanation

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d: All the above Explanation

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Instrument used to measure extension in cast iron and aluminium in this experiment is

a: Extensometer Explanation

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b: Dial micrometer Explanation

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c: Scale Explanation

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d: None of these Explanation

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If the material is unloaded, there will be specified percentage of strain permanently left in it. It is called

a: Yield stress Explanation

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b: Tangent stress Explanation

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c: Proof stress Explanation

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d: None of these Explanation

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Which is correct

a: Wrought iron is produced from cast iron Explanation

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b: Cast iron is produced from pig iron Explanation

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c: Both a and b Explanation

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d: None of these Explanation

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Percentage reduction of cast iron specimen during tensile test would be of order

a: More than 50% Explanation

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b: 25 - 50% Explanation

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c: 10 - 25% Explanation

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d: Negligible Explanation

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Correct order for metals

a: tensile strength< shear strength< compressive strength Explanation

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b: shear strength< tensile strength< compressive strength Explanation

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c: shear strength< compressive strength< tensile strength Explanation

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d: compressive strength< tensile strength< shear strength Explanation

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Wrought iron has better tensile strength than cast iron and is more ductile.

a: True Explanation

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b: False Explanation

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Young's modulus of Iron and Aluminium in GPa

a: 400 & 250 Explanation

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b: 70 & 350 Explanation

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c: 211 & 70 Explanation

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d: 300 & 450 Explanation

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Tensile Test on Cast Iron