Water chemistry must be kept within specific parameters as recommended by manufacturers.
Cooling/Boiler Water (week 13)

Quiz
•
Chemistry
•
University
•
Medium
Christian Lipnica
Used 8+ times
FREE Resource
36 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True
False
2.
MULTIPLE SELECT QUESTION
3 mins • 3 pts
Out-of-limit-parameters can lead to:
Scaling and fouling that reduce heat transfer efficiency
Increased lifespan of equipment and reduced maintenance cost
Foaming and priming in boilers
Foaming and priming in boilers
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Test Parameter: Total Dissolved Solids (TDS)
Problem (if out of range): High → Risk of scaling, carryover
Action/Adjustment: _________
Increase oxygen scavenger dosing
Adjust phosphate dosing (depending on boiler design).
Increase blowdown frequency.
Add alkalinity booster chemicals.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Test Parameter: ________
Problem (if out of range): Low → Corrosion
High → Scaling
Action/Adjustment: Adjust with alkali (e.g., sodium carbonate) or acid (e.g., diluted sulfuric acid).
pH
Hardness (Ca++, Mg++)
Chloride (Cl-) content
Phosphate
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Test Parameter: Hardness (Ca++, Mg++)
Problem (if out of range): Scaling in coolers, pipes
Action/Adjustment: Dose with scale inhibitors or use treated water.
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Test Parameter: Chloride (Cl-) content
Problem (if out of range): Low → Risk of corrosion
Action/Adjustment: Identify leaks (e.g., seawater ingress), correct, and flush the system.
True
False
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Test Parameter: Oxygen content (O₂)
Problem (if out of range): High → Corrosion, pitting
Action/Adjustment: _______
Increase blowdown frequency.
Increase oxygen scavenger dosing
Adjust phosphate dosing
Dose with scale inhibitors or use treated water.
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