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Assignment 7-Cont. - 14020_325
Assignment 7-Cont. - 14020_327

Aviation Structural Mechanic E2 - How airplanes are built and how to maintain them
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7-31. 7-32. 7-33. 7-34. 7-35. 7–36. What is the major difference between the standard and the closed loop LOX trailers? 1. The closed loop trailer operates on a higher pressure 2. The closed loop trailer recaptures vented LOX losses 3. The standard trailer operates faster 4. The standard trailer is more economical Which of the following safety hazards is eliminated by use of the closed loop LOX cart? 1. Venting oxygen 2. Trapped liquid in the lines 3. Static discharge 4. Overpressurization The transfer tank of the closed loop LOX trailer has what capacity? 1. 15 liters 2. 25 liters 3. 50 liters 4. 65 liters To what minimum number of microns is the 30-gallon storage tank of the closed loop LOX trailer evacuated? 1. 5 2.    7 3.    9 4. 11 What is the primary function of the 15-liter transfer tank? 1. To maintain system pressure 2. To hold small volumes of LOX for transfer 3. To maintain system temperature 4. To pressurize the 50 gallon storage tank To transfer LOX to the converter, the transfer tank pressure must be in what relationship with the storage tank pressure? 1. Less than storage tank pressure 2. Greater than storage tank pressure only 3. Equal to storage tank pressure only 4. Greater than or equal to storage tank pressure 7-37. When using the closed loop LOX trailer, when the converter is full, the converter full indicator gauge displays what reading? 1. 5 liters 2. 10 liters 3. Full 4. Liquid 7-33. Which of the following gauges does not have green and red indicating bands? 1. The transfer tank pressure gauge 2. The storage tank pressure gauge 3. The storage tank liquid level gauge 4. The transfer tank liquid level gauge 7-39. Pressure in the storage tank of the closed loop LOX trailer must not exceed what pressure? 1. 55 psi 2. 65 psi 3. 75 psi 4. 85 psi 7-40. Under normal conditions, using a 30 psig transfer pressure, the TMU 70/M LOX trailer should fill in what maximum length of time? 1. 1 to 2 minutes 2. 5 to 10 minutes 3. 12 to 15 minutes 4. 20 to 30 minutes 7-41. You should never let the transfer tank pressure of the closed loop LOX trailer exceed what maximum pressure? 1. 30 psi 2. 50 psi 3. 70 psi 4. 90 psi 7-42. At what maintenance level are AMEs allowed to perform maintenance on LOX trailers? 1. Organizational 2. Intermediate 3. Depot 4. Both 2 and 3 above 48







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