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Materials and Construction

Materials and Construction
Maximum consumption of zinc is in

Electrical industry
Galvanising
Utensil manufacture
Alloying

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Materials and Construction
Which has the maximum melting point out of the following?

Wrought iron
Stainless steel
Steel
Cast iron

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Materials and Construction
Which of the following alloying elements is present in maximum percentage in high speed steel.

Vanadium
Chromium
Tungsten
Molybdenum

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Materials and Construction
Nickel is a constituent of

Monel metal
Bronze
Duralumin
Solder

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Materials and Construction
Metal at the top of the electromotive series is

Most noble
Most active
Most stable
Least active

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Materials and Construction
Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (l/20th of ordinary metals)?

Alumel
Invar
Chromel
Constantan

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