MATERIALS AND CONSTRUCTION QUIZ

Reactor used in the production of polyvinyl chloride (PVC) is made of

Aluminium

Lead

Tantalum

Nickel or glass lined steel

TRUE ANSWER : ?
YOUR ANSWER : ?

Sulphuric acid pickling tanks are lined with

Aluminium

Rubber

Nickel

Glass

TRUE ANSWER : ?
YOUR ANSWER : ?

Gas holder of a gobar (cowdung) gas plant is made of

Mild steel

Tin

Aluminium

Molybdenum stainless steel

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the hardest material?

Corrundum

Topaz

Flourite

Quartz

TRUE ANSWER : ?
YOUR ANSWER : ?

DDT is shipped in

Either B or C

Paper bags

Stainless steel containers

Fibre drums

TRUE ANSWER : ?
YOUR ANSWER : ?

Mild steel storage vessels are suitable for the storage of

Anhydrous ammonia

Hydrochloric acid (95%)

Sulphuric acid (25%)

Fatty acids

TRUE ANSWER : ?
YOUR ANSWER : ?

Spark plugs are made of

Metallic carbides

Corundum

Carborundum

High alumina ceramic

TRUE ANSWER : ?
YOUR ANSWER : ?

The softest material just next to talc in the Mho's scale is

Fluorite

Quartz

Gypsum

Feldspar

TRUE ANSWER : ?
YOUR ANSWER : ?

18/8 stainless steel means, that it contains

18% chromium and 8% molybdenum

18% chromium and 8% nickel

18% nickel and 8% chromium

18% molybdenum and 8% chromium

TRUE ANSWER : ?
YOUR ANSWER : ?

Presence of high amount of silicon in cast iron

Reduces its fluidity

Increases the formation of graphite

Suppresses the decomposition of Fe₃ C

Increases the contraction of the metal

TRUE ANSWER : ?
YOUR ANSWER : ?

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