Discussion
None of the following removes dissolved oxygen from boiler feed water except
Answer: A
Correct answer: dosing hydrazine
Hydrazine is an oxygen scavenger, reacting with dissolved oxygen to give nitrogen and water and adding no dissolved solids. None of the others touches oxygen: sodium carbonate supplies carbonate for conditioning, calgon sequesters calcium, and a zeolite bed exchanges cations. Deaeration is a separate problem from softening and needs its own treatment.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development