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Assignment 6 - 14020_316
Assignment 6-Cont. - 14020_318

Aviation Structural Mechanic E2 - How airplanes are built and how to maintain them
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6-9. 6-10. 6-11. 6-12. 6-13. 6-14. The tubing used in aircraft high- -pressure oxygen systems is made from which of the following types of metal? 1. Copper 2. Steel 3. Bronze 4. Aluminum What lines run from the oxygen cylinders to the regulators? 1. Filler 2. Cylinder 3. Regulator 4. Distribution Oxygen lines are identified by strips of what color paint and/or tape? 1. White paint 2. Blue and white tape 3. Green and white tape 4. Green paint At what minimum pressure is type N tubing pressure tested? 1. 300 psi 2. 450 psi 3. 1,800 psi 4. 3,000 psi For which of the following connections is high-pressure tubing NOT used? 1. The cylinder valve and the regulator inlet in high- -pressure systems 2. The cylinder valve and the pressure reducer in reducer high-pressure systems. 3. The pressure reducer and the outlets in reduced high- -pressure systems 4. The oxygen cylinder valve and the filler connection in bath high and low-pressure systems Adapters and fittings are connected to the ends of copper tubing in high-pressure oxygen systems in what manner? 1. Flared 2. Electric arc welded 3. Silver soldered 4. Tin and lead soldered 6-15. Some later models of naval aircraft with high-pressure oxygen will have which of the following types of tubing in the oxygen system? 1. Aluminum-alloy 2. Stainless steel 3. Both 1 and 2 above 4. Aluminum 6-16. If a line in a gaseous oxygen system ruptures, the loss of the entire oxygen supply is prevented by which of the following valves? 1. Check 2. Filler 3. Shutoff 4. Pressure-reducing 6-17. Check valve castings have arrows embossed on them to provide what information? 1. The direction of the master oxygen supply 2. The direction of flow through the valve 3. The section of the valve to be mounted facing aft 4. The section of the valve to be mounted facing forward 6-18. In some oxygen systems, high cylinder pressure is changed to a low working pressure by which of the following valves? 1. Pressure-reducing 2. Manifold control 3. Cylinder control 4. Filler control 6-19. Pressure reducers are always in what locations? 1. Oxygen distribution lines 2. Cylinder outlet caps 3. Filler valve inlets 4. Regulator outlets 6-20. What valve, located within the common filler valve, opens during the oxygen system filling operation and closes when filling is complete? 1. Check 2. Shutoff 3. Regulator 4.  Pressure-reducing 39







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