IDC Revisioin Questions - Set 5 Question Title * 1. Modern regulators are referred to as being _______________ because a malfunction will result in a _______________ rather than cutting off the air supply. Superior / emergency supply Failsafe / Freeflow Staged / Freeflow High Pressure / Partial Flow OK Question Title * 2. Recreational scuba units are referred to as being open circuit / demand because they only supply air when the diver _____________ and the exhaled air is____________ Inhales / vented into the water Exhales / recycled Inhales / recycled Descends / used OK Question Title * 3. Which type of depth gauge can be used for altitude diving because is reads theoretical depths? Bourbon Tube Spiral Tube Transducer Capillary OK Question Title * 4. A __________ valve is a small valve that helps the main valve open and is found in the _________ stage regulator Control / 1st Pilot / 2nd Pilot / 1st Tank / Multi OK Question Title * 5. Where is a burst disk found? In the 1st stage regulator In the tank valve In the 2nd stage regulator In the SPG OK Question Title * 6. A _________ connection on a scuba tank allows the regulator to be screwed directly into the tank valve. Yoke DIN K Valve Pin Index OK Question Title * 7. The purpose of the regulator first stage is to: Transport high pressure air from the tank to the second stage Reduce high pressure air from the tank to intermediate pressure Reduce intermediate pressure to ambient pressure Reduce high pressure air from the tank to ambient pressure OK Question Title * 8. Pressure testing a scuba tank is also called a ______________ because it involves placing the tank in ______________ Hydrostatic test / water Aerostatic test / vacuum Barometric test / recompression chamber Hydrometric test / water OK Question Title * 9. Before filling a scuba tank you should: Check the tanks serial number and determine the tank manufactuer Check the tank markings, specifically looking for a current hydrostatic text date and maximum capacity Make sure it is an aluminum tank All of the above OK Question Title * 10. Name OK DONE