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Materials and Construction

Materials and Construction
Which of the following alloys does not contain nickel?

Chlorinet - 2 alloy
Monel
Inconel
Babbit metal

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

Feldspar
Quartz
Fluorite
Gypsum

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Materials and Construction
A chemical change takes place when iron

Melts
None of these
Rusts
Is heated

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Materials and Construction
Zinc is highly __________ at room temperature.

Ductile
Brittle
Malleable
Resistant to atmospheric corrosion

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Materials and Construction
High speed cutting tool steels contain about __________ percent of tungsten.

43990
30-35
50-55
18-20

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Materials and Construction
Urea autoclave is made of

Lead lined steel
Stainless steel
Refractory blocks
Cast iron

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