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5 Cards in this Set
- Front
- Back
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The Hartford Loop prevents the water in the boiler from: 1) Exceeding the highest safe level 2) Flowing out through the steam main 3) Exceeding the maximum temperature 4) Contamination by impurities in the returning condensate 5) Dropping below a safe level |
Dropping below a safe level |
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Which one of the following steam heating systems can be used to overcome the difficulty of returning condensate back to the boiler due to inefficient static head? 1) One pipe, free flow return system 2) Two pipe, gravity return system 3) Two pipe, free drain return system 4) One pipe, gravity return system 5) Two pipe, return trap system |
Two pipe, return trap system |
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When the return main of a gravity return steam heating system is located below the level of the water line in the boiler, it is called: 1) Flooded return 2) Upfeed return 3) Dry return 4) Downfeed return 5) Wet return |
Wet return |
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After a steam heating system has been operating for some time, you notice that some sections of the system are still cold. Which one of the following could be the cause of this? 1) Boiler water pressure too low 2) Condensate temperature too low 3) Steam does not contain enough heat 4) Air is trapped in the affected sections 5) Boiler water temperature too low |
Air is trapped in the affected sections |
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The two pipe gravity return steam heating system, now obsolete, had the disadvantage that during startup, some steam could pass through a radiator without condensing and could enter other radiators via the return main, thus trapping: 1) Condensate in the center 2) Steam in the center 3) Water in the center 4) Debris in the center 5) Air in the center |
Air in the center |
