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Materials and Construction

Materials and Construction
Gunmetal and bronze are not corroded by the action of

Synthetic detergent solution
Wet chlorine
Hydrochloric acid (10%)
Nitric acid (< 25%)

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Materials and Construction
Which of the following is not shipped in mild steel containers?

Formic acid
Ethyl alcohol
Acetone
Ammonia

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Materials and Construction
The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon.

2
0.2
8
4

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Materials and Construction
Constituents of stellite are

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

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Materials and Construction
The material of construction of pressure mills used for squeezing out the juice from sugar cane is

Monel
Mild steel
Cast iron
Stainless steel

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Materials and Construction
Gas holder of a gobar (cowdung) gas plant is made of

Aluminium
Tin
Mild steel
Molybdenum stainless steel

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