7-54. 7-55. 7-56. 7-57. 7-58. 7-59. Base LOX storage tanks will be tested for odor a minimum of how often? 1. Every 7 days 2. Every 14 days 3. Every 21 days 4. Every 28 days LOX samples are prepared for use by what organization? 1. The AME shop 2. The AIMD paraloft 3. The ground support equipment work center 4. The depot maintenance activity The sampler, as received by the using activity, is sealed and contains gaseous oxygen at what pressure? 1. 5 psi 2. 10 psi 3. 15 psi 4. 20 psi A LOX sampler received without a residual gaseous oxygen pressure should be given what treatment? 1. Purged before use 2. Wet cleaned and purged before use 3. Rejected and returned 4. Dried in an oven before use What is the maximum number of ways to purge oxygen containers? 1. One 2. Two 3. Three 4. Four What is the purpose of the LOX wash method of purging? 1. 100°F 2. 150°F 3. 200°F 4. 250°F 1. 30 psi 2. 40 psi 3. 50 psi 4. 60 psi 1. One hour 2. Two hours 3. Three hours 4. Four hours 1. 50°F 2. 100°F 3. 150°F 4. 200°F 1. To purge LOX lines 2. To lower the contamination of LOX trailers 3. To purge gaseous oxygen cylinders 4. To lower the contamination of LOX converters 50 7-60. 7-61. 7-62. 7-63. 7–64. 7-65. Aircraft LOX converters must, be purged under which of the following conditions? 1. Before putting them into service 2. If allowed to run dry 3. If odor is detected 4. Each of the above The hot nitrogen gas used in purging LOX converters must be at what minimum temperature? The hot nitrogen gas used in purging a LOX converter is regulated to what minimum pressure? What is the minimum amount of time a converter should be purged? What should be the minimum temperature of the hot nitrogen exiting a converter being purged? After a LOX converter has been purged and serviced, an odor test is performed. If odors persist, the converter must be subjected to what action? 1. Repurging 2. Turn into supply 3. Routing to NADEP 4. Wet cleaning