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Engineering Materials

Engineering Materials
Connecting rod is usually made of

High carbon steel
Low carbon steel
Aluminium
Medium carbon steel

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Engineering Materials
Gun metal contains

70 - 78% copper and rest tin
90% copper and 10% tin
85 - 92% copper and rest tin with little lead and nickel
70% copper and 30% zinc

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Engineering Materials
Iron is

Paramagnetic
Ferroelectric
Ferromagnetic
Dielectric

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Engineering Materials
The steel widely used for motor car crankshafts is

Chrome steel
Nickel-chrome steel
Nickel steel
Silicon steel

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Engineering Materials
The hardness of steel primarily depends on

Percentage of carbon
Shape of carbides and their distribution in iron
Percentage of alloying elements
Heat treatment employed

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Engineering Materials
Gamma-iron occurs between the temperature ranges of

400°C to 600°C
1400°C to 1530°C
600°C to 900°C
900°C to 1400°C

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