
Cooling and Boiler Water Quiz
Authored by Sir Khen
Education
Professional Development
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the recommended pH range for boiler water to avoid corrosion?
5.0 to 6.5
6.5 to 7.5
7.5 to 8.5
10.5 to 11.0
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which chemical is commonly used to remove dissolved oxygen in boiler water?
Sodium chloride
Sodium bicarbonate
Sodium sulfite
Sodium hydroxide
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What causes hardness in boiler water?
Sodium and potassium ions
Calcium and magnesium ions
Chloride ions
Phosphates
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Why must oils be kept out of boiler water?
They cause rust
They cause foaming and sludge
They increase pH
They reduce alkalinity
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the maximum recommended conductivity for boiler water?
1,000 µS/cm
3,000 µS/cm
6,000 µS/cm
10,000 µS/cm
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of the following is used to neutralize calcium hardness in boiler water?
Chlorides
Phosphates
Sulfates
Nitrates
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the ideal phosphate level in boiler water?
10–20 PPM
30–50 PPM
60–80 PPM
100 PPM
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