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Engineering Materials

Engineering Materials
Super conduction by metals is observed in the temperature range of

Below 10°K
Around 0°C
Around 100°C
Above 100°K

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Engineering Materials
Which of the following impurity in cast iron makes it hard and brittle?

Manganese
Sulphur
Silicon
Phosphorus

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Engineering Materials
The lower critical point for all steels is

600°C
723°C
913°C
700°C

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Engineering Materials
Corrosion resistance of steel is increased by addition of

Vanadium, aluminium
Tungsten, molybdenum, vanadium, chromium
Chromium and nickel
Sulphur, phosphorus, lead

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Engineering Materials
Bronze is an alloy of

Copper and tin
Copper, tin and zinc
Copper and zinc
None of these

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Engineering Materials
Lead is poured into the joint between two pipes. These pipes may be made of

Asbestos cement
Vitrified clay
Concrete
Cast iron

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