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ALL MODERN HYDRAULICS AIRCRAFT CONTAIN WHAT FOR OPERATION OF VARIOUS MECHANISMS
HYDRAULICS
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TO ENSURE REQUIRED RELIABILTY, CURRENT AIRCRAFT HYDRAULIC SYSTEMS SPECIFICATIONS REQUIRE HOW MANY SEPERATE SYSTEMS BE AVAILABLE FOR OPERATING THE FLIGHT CONTROLS?
TWO
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THE PRESSURE UTILIZED IN MOST MILITARY HIGH PERFORMANCE AIRCRAFT IS 3000 PSI, ALTHOUGH SOME NEW AIRCRAFT HYDRAULIC SYSTEMS OPERATE AT 4000-_PSI?
4000-8000
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WHAT ARE HONEYCOMB RADIATORS SIMILAR TO AUTOMOBILE RADIATORS?
HEAT EXCHANGER
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HYDRAULIC FLUIDS IN AIRCRAFT HYDRAULIC SYSTEMS ARE PRIMARLY USED TO TRANSMIT WHAT?
POWER
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FLASH POINT, FIRE POINT, AND SPONTANEOUS IGNITION TEMPERATURE OF MIL-PRF-83282 EXCEED THAT OF MIL-PRF-5606 BY MORE THAN WHAT?
200F
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WHAT IS AN ESSENTIAL MAINTENANCE OPERATION PERFORMED WHENEVER A SYSTEM IS FOUND TO CONTAIN FLUID UNACCEPTABLY CONTAMINATED WITH FOREIGN MATTER, PARTICULATES, LIQUIDS, AND GASES OR OTHERWISE CONSIDERED NOT ACCEPTABLE FOR SERVICE?
SYSTEM DECONTAMINATION
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HOW MANY BASIC METHODS ARE UTILIZED IN DECONTAMINATING AIRCRAFT HYDRAULIC SYSTEMS?
FIVE
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WHAT IS A SERVICE OPERATION IN WHICH ENTRAPPED AIR IS ALLOWED TO ESCAPE FROM THE CLOSED HYDRAULIC SYSTEM?
AIR BLEEDING
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ENTRAPPED AIR IN A CLOSED HYDRAULIC SYSTEM, PRESSURIZED ABOVE WHAT PSI, BECOMES COMPRESSED INTO SOLUTION?
50PSI
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MOST HYDRAULIC SYSTEMS IN HIGH PERFORMANCE AIRCRAFT ARE OF WHAT TYPE AND ARE DESIGNED TO ALLOW FREE AIR PROVIDED IT IS NOT TRAPPED BEHIND A PISTON ROD, CHECK VALVE, OR ISOLATION VALVE, TO SELF SCAVANGE BACK TO THE SYSTEM RESERVOIR WHEN A SYSTEM IS DEPRESSURIZED?
CLOSED TYPE
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WHAT VALVES ARE SOMETIMES PROVIDED AT HIGH POINTS IN THE AIRCRAFT CIRCULATORY SYSTEM, FILTER ASSEMBLIES, AND REMOTE SYSTEM COMPONENTS SUCH AS ACTUATORS, TO FURTHER FACILITATE REMOVAL OF FREE AIR?
AIR BLEED VALVES
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WHAT IS A DECONTAMINATION PROCESS IN WHICH THE SYSTEM TO BE CLEANED IS POWERED FROM A CLEAN EXTERNAL POWER SOURCE AND CYCLED SO AS TO PRODUCE A MAXIMUM INTERCHANGE OF FLUID BETWEEN THE POWERED SYSTEM AND THE SE USED TO POWER IT?
RECIRCULATION CLEANING
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WHAT IS THE PROCESS OF REMOVING PARTICULATE, AIR, WATER, AND VOLATILE CONTAMINANTS FROM THE HYDRAULIC FLUID WITHOUT ALTERING THE PHYSICAL OR CHEMICAL PROPERTIES?
PURIFICATION
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WHAT IS A DECONTAMINATION METHOD IN WHICH CONTAMINATED SYSTEM FLUID IS REMOVED TO THE MAXIMUM EXTENT PRACTICABLE AND THEN DISCARDED? FILTERED FLUID IS USED TO DISPLACE CONTAMINATED FLUID, THUS REPLACING IT.
FLUSHING
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WHAT IS A DECONTAMINATION PROCESS IN WHICH THE AIRCRAFT HYDRAULICS SYSTEM IS DRAINED TO THE MAXIMUM EXTENT PRACTICABLE AND THE REMOVED FLUID DISCARDED? HYDRAULIC SYSTEM IS CLEANED WITH CLEANING AGENT THEN REPLACED WITH NEW HYDRAULIC FLUID
PURGING
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PURGING OF AIRCRAFT HYDRAULIC SYSTEM SHALL BE PERFORMED ONLY UPON RECOMMENDATION FROM AND UNDER THE DIRECT SUPERVISION OF THE WHAT?
FLEET SUPPORT TEAM (FST)
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WHAT IS USUALLY THE MOST EFFECTIVE OF THE AVAILABLE DECONTAMINATION METHODS, CONSIDERING MAINTENANCE MAN-HOURS AND MATERIAL REQUIREMENTS, AND IS TO BE UTILIZED WHENEVER POSSIBLE?
RECIRCULATION CLEANING
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FLUID PURIFIERS SHALL BE USED INSTEAD OF FLUSHING WHEN PURIFYING EQUIPMENT IS AVAILABLE EXCEPT FOR THE FOLLOWING ABNORMAL INDICATIONS: OXIDATION, VISCOSITY, FLASH POINT, AND WHAT ELSE?
NEUTRALIZATION
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USE FLUSHING TO DECONTAMINATE ONLY THOSE SYSTEMS NOT CAPABLE OF BEING CLEANED BY MEANS OF RECIRCULATION CLEANING OR WHAT ELSE?
PURIFYING
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HYDRAULIC SAMPLING PORTS SHOULD SATISFY WHAT REQUIREMENTS?
- [SHOULD BE OBTAINED BY A MAIN SYSTEM RETURN LINE, PUMP SECTION LINE, OR SYSTEM RESERVOIR
- [SHOULD NOT BE OBTAINED USING A RESERVOIR OF THE MAKE-UP VARIETY
- [SHOULD BE USEABLE IMMEDIATELY AFTER FLIGHT WITHOUT USING SE
- [SHOULD BE USEABLE WHILE USING SE
- [SHOULD BE IMMEDIATELY ADJACENT TO MAIN BODY OR CLOSE TO STREAM OF FLUID BEING SAMPLED
- [SHOULD NOT BE LOCATED IN AREA OF HIGH SEDIMENTATION
- [OPERATION OF PORT SHALL NOT INCORPORATE EXTERNAL CONTAMINATES
- [SHALL NOT IMPEDE PARTICLES 500 MICRONS OR BIGGER
- [READILY AVAILABLE AND CONVENIENT TO USE
- [FLOW RATE SHOULD BE BETWEEN 100-1000 ML/ 3-30 OZ PER MINUTE
- [REPEATED USE SHOULD NOT DEGRADE ITS MECHANICAL INTEGRITY
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TAN OR RUST COLORED PATCHES OCCUR WHEN....?
RUST OR IRON CHLORIDES ARE FORMED IN THE SYSTEM OR SYSTEM CONTAINS ABNORMAL AMOUNT OF SILICA SAND
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GRAY PATCHES ARE TYPICAL OF....?
SYSTEMS CONTAIN PROPORTIONS OF COMMON WEAR MATERIALS AND EXTERNAL MATERIALS
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GREEN TEST PATCHES HAVE BEEN PRODUCED BY....?
ELEVATED AMOUNT OF WEAR COPPER AND IN-SERVICE FLUID BREAKDOWN
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A STAIN ON THE TEST FILTER MAY INDICATE...?
FREE WATER
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WHAT INFORMATION GOES ON THE LABEL FOR THE HYDRAULIC SAMPLES?
- SAMPLE TAKERS NAME
- ACTIVITY
- PHONE NUMBER
- THE AC/SE SYSTEM
- DATE AND TIME
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HOW LONG DOES THE HYDRAULIC TESTING SHOP MAINTAIN LOG BOOK ENTRIES
THREE MONTHS
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