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Materials and Construction

Materials and Construction
The most resistant material to alkaline corrosion is

Nickel
Karbate
Duriron
Aluminium

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Materials and Construction
Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously.

Arsenic
Both B and C
Bismuth
Antimony

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Materials and Construction
Plasticisers are added to polymers to improve their

Acid resistance
Alkali resistance
Tensile strength
Softness & flexibility

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Materials and Construction
Steel rods are used in reinforced concrete to increase its __________ strength.

Shear
None of these
Compressive
Tensile

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Materials and Construction
Phenol is not shipped in

Galvanised or tin lined drums
Nickel lined steel tank cars
Cast iron containers
Boxed glass carboys

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Materials and Construction
High resistance electrical heating elements/wire are not made of

Kanthal wire
Nimonic alloys
Nichrome
Marageing steel

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