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Materials and Construction

Materials and Construction
Condenser tubes are not made of

Aluminium brass alloy
Wood metal
Cartridge brass
Muntz brass

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Materials and Construction
Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent.

0.2
0.02
0.35
0.5

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Materials and Construction
The carbonating tower used in Solvay process of soda ash manufacture is made of

Karbate
Lead lined steel
Cast iron
Stainless steel

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Materials and Construction
Photographic plates are coated with

Silver halide
Silver nitrate
Calcium silicate
Metallic silver

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Materials and Construction
Dip stick used for measuring the level of petro fuels (e.g. petrol, diesel, fuel oil etc.) in the storage tank is usually made of

Copper
Brass
High carbon steel
Aluminium

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Materials and Construction
Silicon percentage in acid resistant cast iron is about

8
4
20
14

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