MCQOPTIONS
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| 1. |
In an ammonia plant, the purge off is essential to |
| A. | maintain inert gas concentration within a limit. |
| B. | remove excess poisonous gases. |
| C. | maintain H₂ : N₂ ratio at 3 :1. |
| D. | remove uncondensed ammonia vapour. |
| Answer» D. remove uncondensed ammonia vapour. | |