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Oxygen systems
| Question | Answer |
|---|---|
| When servicing a cylinder, temperature does not need to be taken into consideration? | False. |
| A completely empty cylinder can be charged? | False. |
| It is acceptable to service a low PSI bottle from a high PSI manifold system or cylinder? | No. |
| How must the cylinder valve of an oxygen bottle be opened? | Slowly and observe the guage. |
| If a leak is found close to an oxygen cylinder valve, what must be done? | Close the valve, open the outlet to reduce the pressure. |
| To check for a PSI drop you must check the pressure then? | Close the valve, wait 5 minutes, Monitor for PSI drop. |
| What is the maximum allowable pressure drop when testing an oxygen system? | 100 PSI after 1 hour. |
| After finding a leak at a connection should you tighten the connection with the system charged? | No. |
| What are low pressure lines made of? | Seamless aluminum alloy, Copper, Flexible hose. |
| What are the lines between the oxygen bottles and the regulator made from? | Stainless steel. Thick wall copper alloy. |
| What conditions would require an oxygen cylinder to be removed from service? | Abuse, Dents, Bulges, Cracks, Distortion, Damaged thread, Defects unsafe. |
| What is the major advantage of a fixed oxygen system? | Greater storage capacity. |
| Portable systems are used when the flight duration is? | Short but above 10000 feet. |
| What are the three components of an aircraft 02 system? | Storage system, regulators, Masks. |
| What is the operating range of a low pressure container? | 400-450 PSI. |
| What is the operating range of a high pressure container? | 1800-2000 PSI. |
| What temperature is LOX stored at? | -247 degrees F. |
| A chemically generated oxygen system is referred to as? | Solid state oxygen. |
| What is the normal blood saturation of oxygen? | 96-98% |
| How is proper oxygen flow controlled in the system? | With the use of regulators. |
| Name the 3 types of regulators used in a continuous flow system? | Fixed flow, Manual flow, Aneroid control. |
| The acronym P.R.I.C.E is used when inspecting oxygen systems what does it mean? | Pressure, Regulator, Indicator, Connections, Emergency. |
| What must be done before loading 02 equipment on an aircraft? | Ground the aircraft. |
| How is the rate of flow to the mask controlled in a continuous flow system? | A calibrated orifice. |
| What indicates the activation of the overpressure relief valve? | Green blow out disc. |
| Name the type of system that delivers oxygen to the user only when they breath? | Demand type. |
| How is an o2 bottle tested. | Hydrostatic testing. |
| What safety procedures should be considered when handling oxygen? | Ensure tools are free of grease and oil, Do not smoke, work outside try not to use radio equipment, don't smoke. |
| How is the bottle pressure adjusted before it enters the manifold? | Pressure reducer. |
| What are the advantages of a chemical oxygen system? | Light weight, Contains 3 times more oxygen than gaseous. Low maintenance. |
| What type of system mixes cabin air with oxygen? | Diluter system. |
| What is the main source of contamination in oxygen systems? | Moisture. |
| In transport category aircraft what type of mask is required in the cockpit? | Quick donner. |
| How should a quick donner mask be donned? | With one hand within 5 seconds. |
| Indication of an over psi condition? | Green blow out plug on the fuselage. |
| The three main components of an oxygen system? | Cylinder, mask, regulator. |
| What system is commonly used on transport category aircraft? | Chemical system. |
| What regulates airflow to the mask in relation to cabin altitude? | Airflow metering aneroid. |
| What can be used to check for leaks in an oxygen system? | Bubble test with special solution. |
| Whats the ATA code for oxygen systems? | 35 |
| What is the purity of aviators breathing oxygen? | 99.5% |
| What system is a re-breather bag utilized in? | Continuous flow. |
| What is the primary purpose of a re-breather bag? | Conserve oxygen in the system. |
| Re-breather systems _____________ exhaled oxygen for use in the next __________, this ________________ oxygen. | Capture, breath, conserves. |
| What lowers the supply pressure to an acceptable system pressure? | Pressure regulator. |
| What is the normal system operating pressure of an oxygen system? | 40-75 PSI. |
| How is a high pressure oxygen cylinder identified? | The bottle is green and aviators breathing oxygen is stenciled on with 1 inch white letters with the hydrostatic testing date stamped on the bottle. |
| What is the lowest allowable pressure allowed in an oxygen cylinder? | 50 PSI. |
| What is a hydrostatic test? | A pressure test with water. |
| How is the high cylinder pressure lowered to system pressure in a continuous flow oxygen system? | Pressure reducer valve. |
| What relieves excessive pressure in the system? | Over pressure relief valve. |
| What systems are not used on transport category aircraft? | Lox |
| The ___________ ____________ __________ is vented to the _________ _____ _________. | Pressure relief valve, blow out plug. |
| ______________ ________ systems are used in un-pressurized aircraft? | Continuous flow. |
| How does the airflow metering aneroid work? | A bellows expands as altitude increases allowing more oxygen to flow. |
| What can be used to fix a leaking fitting? | Coat the threads with teflon tape. |
| What is the ATA code for oxygen systems? | 35 |
| How often should an oxygen cylinder be hydrostatically tested? | Every 5 years. |
| How is a manual continuous flow regulator operated? | By the crew as altitude changes. |
| How is an automatic continuous flow system regulated? | An aneroid. |
Created by:
g153511
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