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Materials and Construction

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

Fluorite
Feldspar
Quartz
Gypsum

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Materials and Construction
Telfon (PTFE) is corroded by

Hydrochloric acid (10%)
Sulphuric acid
Hydrochloric acid (95%)
None of these

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Materials and Construction
18/8 stainless steel means, that it contains

18% molybdenum and 8% chromium
18% nickel and 8% chromium
18% chromium and 8% molybdenum
18% chromium and 8% nickel

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Materials and Construction
__________ does not contain tin as an alloying material.

Solder
Brass
Pewter
Babbit metal

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Materials and Construction
The heat treatment process applied to cold formed steel parts is

Solution annealing
Artificial ageing
Normalising
Tempering

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Materials and Construction
Which of the following contains maximum percentage of carbon?

Railway spring steel
Rail steel
Saws for cutting steel
Boiler plate steel

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