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Engineering Materials

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

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

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Engineering Materials
A cold chisel is made of

High carbon
Cast iron
Mild steel
H.S.S.

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Engineering Materials
The ultimate tensile strength and yield strength of most of the metals, when temperature falls from 0 to 100°C will

First increase and then decrease
Remain same
Increase
Decrease

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Engineering Materials
Neutral solution is one which has pH value

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

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Engineering Materials
Which of the following alloys does not have copper as one of the constituents?

Monel metal
Nichrome
Constantan
Delta metal

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Engineering Materials
Nickel when added to copper improves

Hardness and strength
Hardness
Strength and ductility
Machinability

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