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Materials and Construction

Materials and Construction
The maximum percentage of chromium that can be added to steel is about

30
24
18
12

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Materials and Construction
Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and

Moving mercury and carbon
Moving mercury and graphite
Graphite and moving mercury
Moving mercury and crimped steel wire

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Materials and Construction
Alinco, which is a aluminium-cobalt-nickel steel, is used for making

Surgical instruments
Powerful magnets
Chemical equipments
Boiler tubes

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Materials and Construction
Maximum permissible sulphur content in steel is __________ percent.

0.805
0.055
0.015
0.505

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Materials and Construction
Wrought iron is having very high

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

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Materials and Construction
Stainless steel is not corroded by

Sulphuric acid (10%)
Saturated brine
Hydrochloric acid (10%)
Nitric acid (10%)

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