ASSIGNMENT 5 Textbook Assignment: “Hydraulic Contamination and Related Servicing/Test Equipment.” chapter 4, pages 4-1 through 4-40. 1. (a) 3 (b) 3 2. (a) 3 (b) 5 3. (a) 5 (b) 3 4. (a) 5 (b) 5 5-1. 5-2. 5-3. 5-4. 5-5. Which of the following problems is a major cause of hydraulic system and component failure? 1. Contamination 2. Loss of fluid 3. Fluid overheating 4. Air in the system What is the maximum acceptable Navy Standard Class hydraulic fluid particulate level for (a) naval aircraft and (b) support equipment? Hydraulic system fluid analysis is NOT required in which of the following situations? 1. When a hydraulic pump fails 2. When extensive maintenance has occurred 3. When the system is subjected to excessive heat 4. When the aircraft has flown 2 flights in less than 12 hours When hydraulic system fluid is lost to the point that the hydraulic pump runs dry or cavitates, you should take what action? 1. Change the defective pump and flush the system 2. Change the defective pump and filter elements, and purge the system 3. Change the defective pump, check the filter elements, and decontaminate as required 4. Change the defective pump, change all filter elements, and decontaminate as required Which of the following lubricants is NOT approved for O-ring seals? 1. VV-L-800 2. MIL-G-81322 MIL-H-46170 4. MIL-H-83282 5-6. Which of the following solvents is approved for cleaning hydraulic test stand connectors? Naphtha 2. P-D-680 3. MIL-C-81302 4. MIL-T-81533A 5-7. Contamination can occur in which of the following forms? 1. Liquid only 2. Solid matter only 3. Gas or solid matter only 4. Liquid, solid matter, or gas 5-8. What type of contamination is most often found in naval aircraft hydraulic systems? 5-9. Organic contamination is produced by all EXCEPT which of the following processes? 1. Glass bead peening 2. Polymerization 3. Oxidation 4. Wear 5-10. Most of the metallic solid contamination is caused by which of the following hydraulic components? 1. Hoses 2. Pumps 3. Actuators 4. Reservoirs 5-11. The inorganic solid hydraulic system contaminant group includes all EXCEPT which of the following materials? 1. Dust 2. O-rings 3. Silicates 4. Paint particles 22 3. 1. 1. Gas 2. Air 3. Particulate 4. Organic oxidation