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Engineering Materials

Engineering Materials
High carbon steel carries carbon percentage

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

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Engineering Materials
Slow plastic deformation of metals under a constant stress is known as

Fatigue
Creep
Endurance
Plastic deformation

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Engineering Materials
Aluminium bronze contains aluminium and copper in the ratio of

2.5277777777778
0.47916666666667
40 : 60
2.1180555555556

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Engineering Materials
Which of the following is not the correct method of increasing fatigue limit?

Nitriding of surface
Shot peening
Cold working
Surface decarburisation

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Engineering Materials
The following element can't impart high strength at elevated temperature

Nickel
Silicon
Magnesium
Manganese

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Engineering Materials
A small percentage of boron is added to steel in order to

Reduce machinability
Increase hardenability
Increase wear resistance
Increase endurance strength

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