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Engineering Materials

Engineering Materials
The lower critical point for all steels is

700°C
600°C
913°C
723°C

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Engineering Materials
Steel with __________ carbon is known as hypo-eutectoid steel.

Above 0.8%
0.008
None of these
Below 0.8%

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Engineering Materials
For the allotropic forms of iron, the points of arrest are

The points where no further change occurs
The points where there is no further flow of metal
Constant for all metals
The points of discontinuity

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Engineering Materials
Which of the following pipes is least corrosion resistant?

Cast iron
Brass
Wrought iron
Mild steel

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Engineering Materials
Gamma iron exits at following temperature

Near melting point
Room temperature
Between 910°C and 1400°C
Between 1400°C and 1539°C

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Engineering Materials
Constantan an alloy used in thermocouples is an alloy of

Copper and tin
Copper and nickel
Copper and zinc
Copper and iron

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