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8 Cards in this Set
- Front
- Back
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How much clearence from the top of the boiler is needed for a HP boiler that produces 70,000 lbs of steam?
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7 feet
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On a gas fired boiler the proper gas to air mixture is
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30%- 70% and in special arrangements it can be as high as 100%. Answer chapter 11 to remember.
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What is the total hardness in a system that was found to have calcium(2.5) hardness of 60ppm,and magnesium (4.1) hardness of 18ppm, a carbon hardness of 12ppm?
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hardness formula calcium X 2.5 + magnesium X4.1
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What is the recommended time for complete external inspection of the boiler?
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Answer: Daily/weekly, pg# 446 study chart
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With 24 hr operation, how often do you check the water level?
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Once per shift
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How often do you check the LWCO?
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Once per shift
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How often do you check the high limit switch?
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Annually
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A 2 pipe was found to be delivering water at 100 psia at 1040 ft per second. How many gallons per hour will it deliver?
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GPM= V ( diameter squared)/ divided by 4085
Answer pg# 469 BOG |
