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Engineering Materials

Engineering Materials
Chromium when added to steel _________ the tensile strength.

Increases
None of these
Does not effect
Decreases

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Engineering Materials
Heavy duty leaf and coil springs contain carbon of the following order

0.008
0.002
0.01
0.005

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Engineering Materials
The machinability of steel is increased by

Phosphorous, lead and sulphur
Phosphorous and aluminium
Silicon and sulphur
Sulphur, graphite and aluminium

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Engineering Materials
The property of a material due to which it breaks with little permanent distortion, is called

Ductility
Brittleness
Plasticity
Malleability

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Engineering Materials
Neutral solution is one which has pH value

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

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Engineering Materials
Which of the following represents the allotropic forms of iron?

Alpha iron, gamma from and delta iron
Alpha iron, beta iron and gamma iron
Body centered cubic iron and face centered cubic iron
Alpha iron and beta iron

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