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Errata No. 2-Cont.
Assignment 1-Cont. - 14020_280

Aviation Structural Mechanic E2 - How airplanes are built and how to maintain them
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Assignment 1 Textbook Assignment: “Utility Systems.” Pages 1-1 through 1-23. 1-1. 1-2. 1-3. 1-4. Learning Objective: Recognize the operating principles and functions of auxiliary bleed-air utility Systems. In addition to furnishing air for air-conditioning and pressuriza- tion system, auxiliary bleed air also supplies air for which of the following actions or systems? 1. Electronic equipment cooling 2. Windshield washing, anti- icing 3. Anti-g system 4. Each of the above Auxiliary system bleed air can range up to what maximum temperature and pressure? 1. 100°F and 50 psi 2. 200°F and 90 psi 3. 400°F and 125 psi 4. 600°F and 150 psi The windshield anti-ice/rain removal system is designed to provide a means of maintaining visibility from the aircraft. 1. True 2. False What are the three modes of operation controlled by the windshield anti-ice/rain removal switch? 1. Normal, rain, anti-ice 2. Off, rain, anti-ice 3. On, anti-ice, rai n 4. Off, on, automatic 1-5. 1-6. 1-7. 1-8. 1-9. The supply air temperature is controlled to a lower limit of 290°F by which of the following? 1. Cooling as it passes through the ducting 2. Warm air temperature control valve 3. Warm air temperature sensor 4. Both 2 and 3 above The warm air overtemperature sensor actuates when supply air temperature reaches which of the following ranges? 1. 275° ± 50°F 2. 300° ± 50°F 3. 375° ± 25°F 4. 400° ± 75° F The anti-ice/rain removal air control regulating valve completes the final pressure regulation and flow control before airflow reaches what item? 1. The anti-ice/rain removal nozzle 2. The anti-ice modulating valve 3. The windshield 4. The air temperature control valve The windshield overheat temperature sensor closes when airflow temperature drops to what minimum level? 1. 290° ± 5°F 2. 300° ± 10°F 3. 280° ± 5°F 4. 250° ± 25°F Anti-g systems are used to prevent which of the following effects on the pilot? 1. Excessive fatigue 2. Decreased alertness 3. Both 1 and 2 above 4. Air sickness 1







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