MATERIALS AND CONSTRUCTION QUIZ

Dielectric strength of a material is

A magnetic property

Its energy stroage capacity

Its capacity to withstand high voltage

Its capacity to resist the flow of current

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Containers made of high silicon cast iron (14% Si) are not suitable for the storage of

Benzoic & boric acids

Acetic acid

Hydrochloric acid (concentrated)

Phosphoric acid (95%) & sulphuric acid (95%)

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Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines?

None of these

Silicon steel

Chromium steel

Molybdenum steel

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How many molecules per unit cell are there in a face centred cubic lettice?

6

2

8

4

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Ceramic materials fabrication can not be done by

Welding

Plastic pressing

Extrusion

Slip casting

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Pipes for bi-cycle frames are made of __________ steel.

Stainless

Chrome carbon

Hot rolled

Cold rolled

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Nickel and molybdenum are the basic constituents of

Solder

German silver

Hastealloy

Inconel

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Alinco, which is a aluminium-cobalt-nickel steel, is used for making

Surgical instruments

Chemical equipments

Powerful magnets

Boiler tubes

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18/8 stainless steel means, that it contains

18% chromium and 8% molybdenum

18% nickel and 8% chromium

18% molybdenum and 8% chromium

18% chromium and 8% nickel

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Presence of high phosphorous in cast iron increases its

Fluidity

Melting point

Shrinkage

Tensile strength

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