1. Puddling process is used for converting pig iron into
2. Between 230°C and 370°C, blue brittleness is caused in mild steel because of the
3. Metal shots used in shot blasting are made of
4. Which of the following is the most effective inhibitor of grain growth, when added in small quantity in steel ?
5. Fibrous fracture is normally encountered in the __________ materials.
6. Wood is a/an __________ material.
7. Lead is most readily dissolved in
8. Holes in a plate for rivetted joints is preferably made by
9. Hard magnetic materials have high
10. Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8
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- Chemical Engineering Basics - Section 13