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Engineering Materials

Engineering Materials
Maximum percentage of carbon in austenite is

0.00025
0.0026
0.008
0.017

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Engineering Materials
The silicon steel is widely used for

Generators and transformers in the form of laminated cores
Motor car crankshafts
Connecting rods
Cutting tools

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Engineering Materials
The percentage of carbon in grey iron castings usually varies between

0.5 to 1%
0.012
5 to 7%
2.5 to 4.5%

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Engineering Materials
Basic solution is one which has pH value

pH value has nothing to do with basic solution
Greater than 7
Less than 7
Equal to 7

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

Nitriding of surface
Cold working
Surface decarburisation
Shot peening

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Engineering Materials
In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion.

Manganese
Silicon
Sulphur
Phosphorus

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