ENGINEERING MATERIALS QUIZ

2

0.1

0.4

0.02

600°C

723°C

1147°C

1493°C

Sulphur, lead and phosphorus

Chromium

Nickel and chromium

Nickel

Working at lower temperature

Purification of metal

All of these

Grain refinement

0.05 to 0.20%

0.20 to 0.45%

0.55 to 1.0%

0.45 to 0.55%

German silver

Mild steel

Lead

Graphite

Formation of bainite structure

Carburised structure

Martenistic structure

Lamellar layers of carbide distributed throughout the structure

0.012

0.5 to 1%

5 to 7%

2.5 to 4.5%

Air is burning out silicon and manganese

Silicon and manganese has burnt and carbon has started oxidizing

The brown smoke does not occur during the operation of a Bessemer converter

The converter must be titled to remove the contents of the converter

Less than 7

Equal to 7

Greater than 7

pH value has nothing to do with neutral solution