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FCOA Compressor Operator Quiz
This quiz should not substitute reading the type specific operation manual of the compressor you want to use. High Pressure Breathing Air compressors are expensive specialized pumps that can compress air to 200 or 300 bar. They also run on special oil that should not be harmful when vaporized in the breathing air. And they have filter systems to take out impurities and water. Ordinary compressors pump till about 20 bar, they run on standard oil that is unhealthy to come in contact with. And they have no filter systems. 

Risks to the use of compressors:
  1. Faulty tanks can burst open and start moving
  2. The filling hose can come of and start whipping. 
  3. Long hair can get stuck in the fan belt or fan of the compressor
  4. Electrical compressors come with the risk of being electrocuted. 
  5. Fuell ran compressors come with the risk of fire and explosion. 
  6. If compressors are not well ventilated, they could suck up their own exhaust gasses and cause carbon monoxide poisoning to the user. 
  7. Prolonged exposure to the noise of a compressor can cause hearing loss. 
  8. In case a scuba tank filled with pure oxygen gets hooked up with a normal compressor then there is a high risk of explosion. 


Example Check List before running a compressor:
  1. Read the operating manual. 
  2. Check if the tank to be filled is hydrostatically tested. 
  3. Assure the scuba tank your filling has no oxygen inside.
  4. Check oil level of the engine. 
  5. Check oil level of the pump.
  6. Check the compressors logbook for upcoming oil changes and filter changes. 
  7. Switch on the compressor. 
  8. Check if the compressor is building up p      
Common problems with compressors
  1. If fuel is left in the carburetor to long, it can start clogging and disrupt the fuel flow.
  2. Electrical compressors might need 3 phases installed while most houses only have 2 phases
  3. Extension cords that are not appropriate for the compressor can either get hot or not let trough the right amount of power for the compressor to run.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    How to fill a tank that already has oxygen inside.                                                                                                                         In order to make Nitrox, one way is to put some oxygen in the tank first. When connecting such a tank to the compressor, don't open it before the pressure of the compressor is higher then that in the scuba tank. In this way the oxygen can not poor in to the compressor. Oxygen should stay away from oil and heat.                                                                                


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Research the periodic testing requirements for scuba tanks at your location. How often do they need to get tested and how do they get marked?
Can an ordinary compressor get used to fill scuba tanks. 
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