MATERIALS AND CONSTRUCTION QUIZ

Which one contains the least percentage of carbon?

Cast iron

High speed steel

Wrought iron

Pig iron

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Urea autoclave is made of

Refractory blocks

Cast iron

Lead lined steel

Stainless steel

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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%?

Cast iron

Steel

Nickel

Karbate

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Duriron is

All of these

Prone to breakage due to thermal expansion because of its very high co-efficient of thermal expansion

High silicon iron

Acid resistant, brittle and very hard

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Which of the following is a non-magnetic material?

Nickel

Zinc

Cobalt

None of these

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Ceramic materials fabrication can not be done by

Welding

Extrusion

Slip casting

Plastic pressing

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__________ possesses viscoelastic properties.

Cork

Glass

Rubber

Graphite

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In order to be called steel, an alloy should have iron percentage greater than

80

90

70

50

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Gunmetal and bronze are not corroded by the action of

Nitric acid (< 25%)

Wet chlorine

Hydrochloric acid (10%)

Synthetic detergent solution

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Aqueous nitric acid is stored in

Cast iron vessel lined with acid-proof masonry brick

Stainless steel vessel

Cast iron vessel

Steel drum

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