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Materials and Construction

Materials and Construction
Anodic material used for the cathodic protection of underground buried steel pipeline is

Zinc or magnesium
Brass
Nickel or copper
Bronze

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Materials and Construction
Babbit metal is not a

Lead base alloy
White metal
Tin base alloy
Pure metal

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Materials and Construction
Out of the following, copper vessels are the most suitable for the storage of

Nitric acid (95% and fuming)
Bromine
Phosphoric acid (95%) & sulphuric acid (95% and fuming)
Dry chlorine & dry fluorine

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

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

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Materials and Construction
How many atoms are there per unit cell in a body centred cubic lattice system?

6
2
3
4

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Materials and Construction
The metals occuring at the lower most position in the electromotive series

Are heat insulators
Are very brittle
Resist corrosion very strongly
Do not resist corrosion

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