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Engineering Materials

Engineering Materials
The transistor is made of

Copper
Gold
Silver
Germanium

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Engineering Materials
Addition of manganese to aluminium results in

One of the best known age and precipitation hardening systems
Improvement of casting characteristics
Improvement of corrosion resistance
Improving machinability

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Engineering Materials
Which of the following metal shrinks most from molten state to solid state?

Brass
Cast steel
Cast iron
Admiralty metal

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Engineering Materials
In which of the following cases, consideration of creep is important

Flywheel of steam engine
Gas turbine blades
Cycle chains
Cast iron pipes

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Engineering Materials
German silver is an alloy of

Refined silver
Nickel, Copper and zinc
Silver and some impurities
Nickel and copper

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Engineering Materials
Corrosion resistance of steel is increased by addition of

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

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