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Materials and Construction

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

Masonry well
Mild steel drum
Stainless steel vessel
Cast iron vessel

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Materials and Construction
100% H₂SO₄ at 30°C can't be stored in a vessel made/lined with

Mild steel and stainless steel
Aluminium, tin and rubber
Teflon, glass and porcelain
Cast iron and high silicon iron

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Materials and Construction
Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its

Compressive strength
Tensile strength
Machinability
Corrosion resistance

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Materials and Construction
Carbon content in steel is __________ percent.

43927
0.001-0.01
0.1-2
43865

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Materials and Construction
Constituents of stellite are

Cobalt, chromium and tungsten
Zinc, copper and nickel
Zinc, aluminium and nickel
Nickel, cobalt and vanadium

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Materials and Construction
Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of

Zircalloy
Graphite
Steel
Concrete

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