MATERIALS AND CONSTRUCTION QUIZ

Which of the following pairs of elements may form an alloy?

Iron & carbon

Platinum & mercury

Iron & mercury

None of these

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Lead is

Used as a cathodic material

Not resistant to corrosion

Not used as pigment (in its compound forms) for paints

Used as a shock absorber (in mattress form) between the foundation an steel framework of skyscrapper buildings

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Which of the following is not an alloy of copper?

German silver

Muntz metal

Admirability gun metal

Pewter metal

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Which of the following is the easiest to bend?

Steel

Cast iron

Stainless steel

Wrought iron

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The phenomenon in which slow extension of material takes place with the time at constant load is called

Creep

Ductility

Elasticity

Plasticity

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Most suitable material for high pressure vessel operating at 500 atm. and 500° C is

18/8 stainless steel

Mild steel

High silicon iron (14% Si)

Molybdenum stainless steel

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Interchain forces are the weakest in case of

Plastics

Fibres

Elastomers

Both rubber & elastomers

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Most of the common metals have __________ crystal structure.

None of these

Orthorhombic

Hexagonal

Cubic

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Anodic material used for the cathodic protection of underground buried steel pipeline is

Brass

Nickel or copper

Bronze

Zinc or magnesium

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Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70%?

Karbate

Cast iron

Steel

Nickel

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