1.Ph level acidic 0-7, nuetral 7, alkaline 7-14 2. Closed, open, semi-open 3. oil ring vacuum pump ( toshniwal) Centrifugal pump 4.msgl, ss 5. 2 Torr for 15 min 6. As per product requirement setting done. 7. Dail gauge 8. Mix of methanol(36%) & water(64%) 9. Atmospheric temp 10. Thickness of glass in glassline reactor 0.5 to 2mm

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The interview question covers topics related to pH levels, pump types, materials, vacuum pressure, and reactor glass thickness.

pH levels range from acidic to alkaline
Different types of pumps include oil ring vacuum and centrifugal pumps
Materials used can be MSGI or SS
Vacuum pressure is measured in Torr
Glass thickness in glassline reactors can range from 0.5 to 2mm