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Materials and Construction

Materials and Construction
Chilled iron castings are

None of these
Highly wear resistant
Easily machinable
Soft on surface

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Materials and Construction
For storing water and acid free benzol, use a __________ vessel.

Steel
Karbate
None of these
Stainless steel

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Materials and Construction
A hardened steel essentially contains

Troostite
Sorbite
None of these
Martensite

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Materials and Construction
Wrought iron is having very high

Susceptibility to changes in its properties by heat treatment
Corrosion resistance
Strength
Hardness

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Materials and Construction
__________ steel is widely used for the manufacture of motor car crankshafts.

Chrome
High speed
Nickel
Silicon

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Materials and Construction
H₂SO₄ (< 50% concentration) is corrosive to

Rubber (butyl and hard), silicone rubber & teflon
Aluminium, mild steel, stainless steel, concrete & tin
Glass, graphite, porcelain & stoneware
Copper, cast iron & high silicon iron (14% Si)

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