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Engineering Materials

Engineering Materials
Which of the following alloys does not have copper as one of the constituents?

Monel metal
Constantan
Delta metal
Nichrome

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Engineering Materials
Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio

2.1180555555556
40 : 60
2.9375
30 : 70

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Engineering Materials
If a refractory contains high content of silicon, it means refractory is

Neutral
Basic
Brittle
Acidic

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Engineering Materials
When medium carbon steel is heated to coarsening temperature

The grain size increases very rapidly
There is no change in grain size
The average grain size is a minimum
The grain size first increases and then decreases very rapidly

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Engineering Materials
The property of a material which enables it to retain the deformation permanently, is called

Plasticity
Brittleness
Ductility
Malleability

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Engineering Materials
The electric process of steel making is especially adapted to

Alloy and carbon tool steel
High speed tool steel
Magnet steel
All of these

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