MATERIALS AND CONSTRUCTION QUIZ

The increase in hardness of metal due to its cold working is termed as the __________ hardening.

Age

Flame

Induction

Work

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Aqueous nitric acid is stored in __________ vessel.

Thermosetting plastic material

Stainless steel

Plain carbon steel

Cast iron

TRUE ANSWER : ?
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Which of the following is the hardest?

Pearlite

Cementite

Austenite

Ferrite

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Which of the following is not a nickel based alloy?

Inconel

Babbit metal

Nimonics

Hastelloys

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Softening of hardned steel is done by its

Normalising

Tempering

Carburising

Annealing

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Invar used in thermocouples is an alloy of nickel and

Lead

Chromium

Iron

Copper

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The presence of impurities in iron

Increases its melting point

Makes it malleable

Decreases its melting point

Does not affect its melting point

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Which of the following commercial metals is most abundantly found in India?

Zinc

Aluminium

Nickel

Copper

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Presence of manganese in alloy steel improves its

Corrosion resistance

Elasticity & creep resistance

Cutting ability

Abrasion resistance & toughness

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DDT is shipped in

Paper bags

Fibre drums

Either B or C

Stainless steel containers

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