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Materials and Construction

Materials and Construction
'Semi steel' is

Both A & B
Produced by adding 10-20% steel to the cupola charge
Neither A nor B
Stronger than cast iron

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Materials and Construction
Invar used in thermocouples is an alloy of nickel and

Chromium
Lead
Copper
Iron

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Materials and Construction
Ball bearings are generally made of

Chrome carbon steel
Plain carbon steel
Malleable cast iron
Stainless steel

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Materials and Construction
Hydrocyanic acid is not shipped in

Cast iron vessels
Steel cylinders
Monel drums
Aluminium containers

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Materials and Construction
The digester of a Gobar gas plant is a

Mild steel drum
Masonry well
Cast iron vessel
Stainless steel vessel

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Materials and Construction
Sheardising process is used for

Heat treatment of high speed steel
None of these
Surface coating
Cold working on metals

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