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WHAT ARE THE MOST SERIOUS HAZARDS IN HANDLING, USING, AND STORING A/C CLEANING MATERIALS?
FLAMMABILITY AND TOXICITY
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WHO SHOULD EVALUATE ANY LOSS OF STRUCTURAL STRENGTH IN CRITICAL AREAS OF AN A/C?
AN AERONAUTICAL ENGINEER.
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WHY ARE THICK STRUCTURAL SECTIONS MOST SUSCEPTIBLE TO CORROSION ATTACK?
THICK SECTIONS ARE MORE LIKELY TO HAVE VARIATIONS IN THEIR COMPOSITION, PARTICULARLY IF HEAT-TREATED DURING FABRICATION
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WHAT ARE THE TWO CLASSES OF SPRAY GUNS?
SUCTION FEED AND PRESERVE-FEED SPRAY GUNS
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WHAT IS THE STANDARD, OF GENERAL-PURPOSE, EXTERIOR PROTECTIVE COATING FOR A/C SURFACES?
ALIPHATIC POLYURETHANE, MIL-C-85285
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WHY DRY-CLEANING SOLVENT NOT BE USED IN OXYGEN AREAS OR AROUND OXYGEN EQUIPMENT?
IT IS NOT OXYGEN COMPATIBLE AND WILL CAUSE EXPLOSION OR FIRE
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FILIFORM CORROSION OCCURS ON WHAT TYPES OF METALS?
STEEL, ALUMINUM, AND MAGNESIUM.
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THE DECAY OF METALS AS THEY COMBINE WITH OXYGEN IS KNOWN AS WHAT TYPE OF CORROSION?
METAL CORROSION
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HOW WILL HEAT, HUMIDITY, AND MOISTURE AFFECT THE ELECTROCHEMICAL REACTIONS, THAT CAUSE METAL TO CORRODE?
THEY SPEED UP THE CORROSION PROCESS.
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WHAT MUST YOU DO BEFORE STARTING CORROSION REMOVAL?
CONDUCT AN INSPECTION AND EVALUATION OF THE SUSPECT AREA
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WHAT TECHNICAL PUBLICATION COVER EMERGENCY RECLAMATION PROCEDURES FOR NAVAL ACRAFT?
NA 01-1A-509.
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WHERE MUST FLAMMABLE LIQUIDS BE STORED WHEN NOT IN USE?
IN A SEPARATE BUILDING OR-FLAMMABLE LIQUIDS STOREROOM
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WHEN CLEANING AN A/C WHAT ARE THE TWO DIRECTIONS AND WHICH CLEANING COMPOUND AND RISING ARE APLIED.
UPWARD AND OUTWARDUPWARD AND OUTWARD
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PITTING CORROSION IS FIRST NOTICEABLE AS WHAT COLOR DEPOSIT ON A METAL SURFACE?
WHITE OR GRAY POWDERRY DEPOSIT.
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LIST THE CONDITIONS THAT REQUIRE THE AFFECTED AREAS OF AN A/C TO BE CLEANED IMMEDIATELY?
- A. A/C IS EXPOSED TO CORROSIVE FIRE-EXTINGUISHING MATERIALS.
- B. SPILLED ELECTROLYTE AND CORROSIVE DEPOSITS ARE FOUND AROUND BATTERY TERMINALS AND BATTERY AREA,
- C. THE A/C HAS BEEN EXPOSED TO SIGNIFICANT AMOUNTS OF SALT WATER.
- D. SALT DEPOSITS, RELIEF TUBE WASTE OR OTHER CONTAMINANTS ARE APPARENT.
- E. FUNGUS GROWTH IS APPARENT.
- F. CHEMICAL, BIOLOGICAL, OR RADIOLOGICAL CONTAMINANTS ARE DETECTED.
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WHAT IS USUALLY THE CAUSE OF DISSIMILAR METAL CORROSION?
IT IS USUALLY THE RESULT OF FAULTY DESIGN OR IMPROPER MAINTENANCE PRACTICES
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WHAT SHOULD YOU USE DURING THE ABRASIVE PROCESS TO PREVENT FLASH RUSTING?
SODIUM NITRITE MIL-S-24521.
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MIL-C-16173, CORROSION PREVENTIVE COMPOUND, IS AVAILABLE IN THREE GRADES. WHICH GRADE(S) IS/ARE EASILY TO REMOVED WITH DRY-CLEANING SOLVENT?
ALL THREE. GRADE I, II AND IV.
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WHAT IS THE MOST DESIRABLE METHOD OF MECHANICAL CORROSION REMOVAL?
VACU-BLAST DRY HONING PORTABLE MACHINE
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HOW DOES CORROSION ENDANGER AIRCRAFT OR REDUCE THE MARGIN OF SAFETY?
CORROSION REDUCES THE STRENGTH AND CHANGES THE MECHANICAL CHARACTERISTICS OF THE MATERIAL.
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THE CORROSION-PRONE AREAS FOR EACH SPECIFIC A/C ARE DERAILED IN WHAT PUBLICATION?
APPLICABLE PERIODIC MAINTENANCE INFORMATION CARDS (PMICs).
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WHY IS THE CONFORMABLE APPLICATOR CLEANING PAD BETTER THAN A MOP OR BRISTLE BRUSH WHEN CLEANING A/C SURFACES?
BECAUSE IT CONFORMS TO THE SURFACE , THE APPLICATOR ALLOWS EASIER APPLICATION OF A CONSTANT SCRUBBING PRESSURE ON CURVED SKIN PANELS
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