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Engineering Materials

Engineering Materials
Solder is an alloy consisting of

Tin and lead
Tin, antimony, copper
Tin and copper
Lead and zinc

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Engineering Materials
Iron-carbon alloys containing 1.7 to 4.3% carbon are known as

Eutectic cast irons
None of these
Hypoeutectic cast irons
Hypereutectic cast irons

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Engineering Materials
Steel made from phosphate iron is

Tough
Hard
Brittle
Ductile

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Engineering Materials
Pearlite consists of

6.67% carbon and 93.33% iron
13% carbon and 87% ferrite
13% cementite and 87% ferrite
13% ferrite and 87% cementite

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

Basic
Brittle
Neutral
Acidic

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Engineering Materials
Chromium when added to steel _________ the tensile strength.

Does not effect
Decreases
Increases
None of these

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