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Engineering Materials

Engineering Materials
Depth of hardness of steel is increased by addition of

Nickel
Chromium
Tungsten
Vanadium

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Engineering Materials
When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite.

None of these
Equal to
Less than
More than

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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
Grey cast iron has

All of these
Carbon in the form of free graphite
High tensile strength
Low compressive strength

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Engineering Materials
White metal contains

88% copper and 10% tin and rest zinc
Silver and chromium
Alloy of tin, lead and cadmium
63 to 67% nickel and 30% copper

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Engineering Materials
The material widely used for making pendulums of clocks is

Stainless steel
High speed steel
Heat resisting steel
Nickel steel

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