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Engineering Materials

Engineering Materials
The addition of which of the following improves machining of copper?

Vanadium
Tin
Sulphur
Zinc

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Engineering Materials
Which of the following elements does not impart hardness to steel?

Copper
Nickel
Chromium
Silicon

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Engineering Materials
Malleability of a material can be defined as

Ability to undergo large permanent deformations in compression
Ability to undergo large permanent deformations in tension
All of these
Ability to recover its original form

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

Basic
Brittle
Acidic
Neutral

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Engineering Materials
Constantan an alloy used in thermocouples is an alloy of

Copper and zinc
Copper and tin
Copper and iron
Copper and nickel

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Engineering Materials
The transistor is made of

Germanium
Copper
Gold
Silver

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