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Engineering Materials

Engineering Materials
The blade of a power saw is made of

Boron steel
Malleable cast iron
High speed steel
Stainless steel

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

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

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

Nickel
Tungsten
Vanadium
Chromium

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Engineering Materials
The machinability of steel is improved by adding

Sulphur, lead and phosphorus
Chromium
Nickel and chromium
Nickel

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Engineering Materials
Preheating is essential in welding

All of these
Cast iron
All nonferrous materials
High speed steel

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Engineering Materials
The metal suitable for bearings subjected to heavy loads, is

Monel metal
Phosphor bronze
White metal
Silicon bronze

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