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Materials and Construction

Materials and Construction
Photographic plates are coated with

Silver halide
Metallic silver
Silver nitrate
Calcium silicate

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Materials and Construction
Super conductors are those substances, which

Conduct electricity at low temperature
Offer high resistance to current flow
Offer no resistance to current flow
Conduct electricity at high temperature

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Materials and Construction
Carbon content in plain carbon steel is __________ percent.

0.85 to 1.2
0.35 to 0.45
0.1 to 0.15
0.65 to 0.80

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Materials and Construction
Hammers and railway rails are normally made of

Mild steel
High carbon steel
Medium carbon steel
Dead mild steel

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

Masonry well
Stainless steel vessel
Mild steel drum
Cast iron vessel

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Materials and Construction
Zircalloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium

None of these
And copper
And graphite
Tin, nickel, iron and chromium

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