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26 Cards in this Set
- Front
- Back
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What is a class, 3 , cabinet standpipe system. |
It is a combination of class 1 and 2. It is equipped with a, 2 and 1/2 in, valve and a one and a half inch, valves .the one and a half, we'll have a hose attached to it, two and a half does not. |
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Standpipe systems ,are used for what type of fires. |
Type A. |
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Type B fires, what are these classified as. |
Flammable liquids. |
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How many percent, of water is returned to the circulator, from the top of the pool. |
50% |
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How are heavier solids removed from the pool. |
Vacuuming the bottom. And inspecting the bottom daily. |
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What are the two ways, to remove suspended, materials from the water. |
Slurry feed and diatomaceous earth. Or alum and sand filter. |
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What is one of the methods, for gauging turbidity. |
To be able to see the main drain, from any point outside the pool, if the drain is not visible do not open the pool. |
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When you see a greenish, blue color what is this, associated with. |
Associated with algae growth or low ph. |
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How many milligrams ,per liter is the, minimum free residual, chlorine in a pool. |
.5, milligrams per litre. |
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When getting complaints, I'm sore eyes, what is this usually caused by. |
You would think it is high chlorine. But it can be low ph. |
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Chlorine gas , reduce pH Alum reduces pH ,how is it restored. |
Soda ash or soda bicarbonate |
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If chlorination fails ,to clear up algae property ,what's the next step. |
Copper sulfate or Bluestone, |
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What's the proper water temperature, for a pool. And what is the accompanying, air temperature in the pool. |
24 degrees Celsius, 26 degrees Celsius. The air temperature should be 2.7 degrees Celsius warmer. |
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The openings, for the strainer of a hair, and lint catcher should be what size. |
.25 of a centimeter |
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Overfeeding of Alum can cause what problems. |
Shorten shelter runs, since the filter is plugged, turbidity can enter, the pool, low alkaline, soda ash must, be added to, increase the alkalinity. |
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When pressures are reduced in your ,sand filters to, 35, 58, what needs to be done. |
If the pressure is reduced to, 35-58 ,kpa, or 5 to 8, PSI shelter needs backwashing |
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If you have a chlorine gas leak what should you do. |
Hold a pneumonia moistened cloth near your face chlorine is heavier than air. |
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Usually one skimmer for how many square meters |
40 square meters |
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What's the complete change, over for public pools and semi public pools. |
6 changes in 24 hours. For both |
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Special-purpose complete, change , overs of water example ,Physiotherapy pools. |
1 change over ,every two hours or ,12, changes for every, 24 ,hours. |
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What is the changeover rate for wading pools. |
One complete changeover every 2 hours. 12 change overs, for every 24 hours |
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How many changeovers of water in a private system. |
Three complete changes every 24 hours |
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Pool water should be not be heated above. |
30 degrees Celsius |
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What is the frequency of testing for pH. |
Every 4 hours of pool operation and recorded. |
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How toilets should be in the change rooms. |
One toilet for every 25 people |
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How many showers per dressing room minimum |
Three showers progressing or minimum |
