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Materials and Construction

Materials and Construction
White cast iron as compared to grey cast iron is

Very hard
All of these
Very brittle
More durable

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Materials and Construction
Percentage of silver in German silver is

5
10
0
20

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Materials and Construction
Hydrocyanic acid is not shipped in

Aluminium containers
Monel drums
Cast iron vessels
Steel cylinders

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Materials and Construction
Balls in a ball mill are usually made of

Cast iron
Stainless steel
Steel
Bronze

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Materials and Construction
The electrical conductivity of a __________ decreases with rise in temperature.

Semi-conductor
Metal/alloy
Dielectric
None of these

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Materials and Construction
The purpose of nitriding the steel is to

Improve its reliability
None of these
Harden its surface
Soften its surface

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