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Engineering Materials

Engineering Materials
High carbon steel carries carbon percentage

0.8 to 1.5%
0.6 to 0.8%
0.3 to 0.6%
0.1 to 0.3%

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Engineering Materials
The steel widely used for motor car crankshafts is

Silicon steel
Chrome steel
Nickel steel
Nickel-chrome steel

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Engineering Materials
The lower critical temperature

Depends upon the rate of heating
Increases as the carbon content in steel increases
Is same for all steels
Decreases as the carbon content in steel increases

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Engineering Materials
Iron ore is usually found in the form of

Sulphides
Carbonates
All of these
Oxides

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Engineering Materials
Which of the following statements are true for annealing of steels?

All of these
Internal stresses are relieved
Cooling is done slowly and steadily
Steels are heated to 500 to 700°C

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

Monel metal
White metal
Phosphor bronze
Silicon bronze

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