Question: Which manual was established jointly by the Navy, Air Force, and Army as a combined effort to consolidate and coordinate corrosion control best practices for aircraft and avionics? (Page 1-1)

Answer: Cleaning and Corrosion Control

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Question: Which word is used when a procedure is mandatory? (Page 1-2)

Answer: Shall

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Question: What are issued as naval messages to expedite the release of urgent and essential operational and maintenance change information? (Page 1-3)

Answer: Interim Rapid Action Changes (IRACs)

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Question: What must an activity be established on which is maintained by the Naval Air Technical Data and Engineering Service Command (NATEC) to automatically receive future changes and revisions to NAVAIR technical manuals? (Page 1-3)

Answer: Automatic Distribution Requirements List (ADRL)

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Question: Up to what percentage of military avionic failures are due to the corrosion process? (Page 2-1)

Answer: 40%

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Question: The two most important factors in preventing corrosion, and the only ones which can be controlled by field personnel, is the application of protective coatings along with the removal of what? (Page 2-1)

Answer: Electrolytes

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Question: Aluminum along with which other alloy found in aviation equipment will normally begin to corrode if salt deposits, other corrosive soils, or electrolytes are allowed to remain? (Page 2-2)

Answer: Magnesium

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Question: Chloride content should be less than how many parts per million for aircraft washing and rinsing? (Page 2-2)

Answer: 400

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Question: Which instruction must reporting Navy personnel identify/report corrosion discrepancies in accordance with? (Page 2-4)

Answer: OPNAVINST 4709.2

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Question: The appropriate parent service organization documents or which publication should be referenced for the handling, storage, and disposal of hazardous materials? (Page 2-4)

Answer: DoD 6050.5-LR

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Question: Materials or processes considered to be an improvement over existing ones, after local laboratory analysis and evaluation, shall be forwarded to the Aircraft Controlling Custodians (ACC) or whom else for submission to the parent service organization for further evaluation? (Page 2-4)

Answer: System Program Manager (SPM)

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Question: What is the chemical or electrochemical deterioration of a material referred to as? (Page 2-5)

Answer: Corrosion

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Question: Aluminum and magnesium form corrosion products that are white oxides or what else? (Page 3-1)

Answer: Hydroxides

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Question: What is the most common type of corrosion (and the one that can be most effectively treated by maintenance personnel)? (Page 3-1)

Answer: Electrochemical

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Question: What is the smallest unit of an element, made up of a positively charged nucleus surrounded by a system of negatively charged electrons? (Page 3-1)

Answer: Atom

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Question: There are over how many elements? (Page 3-1)

Answer: 100

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Question: What is a negatively charged subatomic particle called? (Page 3-1)

Answer: Electron

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Question: What cannot move through metal conductors? (Page 3-1)

Answer: Ions

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Question: What is a liquid (usually water) solution containing ions called? (Page 3-1)

Answer: Electrolyte

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Question: Which branch of science is concerned with chemical reactions at surfaces in contact with electrolytes? (Page 3-1)

Answer: Electrochemistry

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Question: How many conditions must exist before metal corrosion can occur? (Page 3-1)

Answer: 4

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Question: What is corroding metal called? (Page 3-2)

Answer: Anode

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Question: When corrosion products form, they often precipitate onto the corroding surface as a what? (Page 3-2)

Answer: Powdery deposit

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Question: Since corrosion products occupy more volume than the original metal, the paint surfaces may become blistered, flaked, chipped, or appear in which way? (Page 3-3)

Answer: Lumpy

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Question: 13. Which stage is the best time to prevent corrosion? (Page 3-3)

Answer: Design

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Question: 14. Aluminum, steel, titanium, along with which other type of metal are the most commonly used in aircraft construction? (Page 3-3)

Answer: Magnesium

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Question: 15. Most alloys are made up entirely of small crystalline regions called what? (Page 3-3)

Answer: Grains

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Question: 16. Which form of corrosion are many alloys used in aircraft construction sensitive to? (Page 3-5)

Answer: Stress corrosion cracking

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Question: 17. Which type of corrosion is probably the most common type? (Page 3-6)

Answer: Uniform surface

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Question: 18. Which type of corrosion occurs when different metals are in contact with each other and an electrolyte? (Page 3-6)

Answer: Galvanic

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Question: 19. What is a form of extremely localized attack that results in holes in the metal? (Page 3-6)

Answer: Pitting

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Question: 20. Which type of metals are most susceptible to pitting damage? (Page 3-7)

Answer: Stainless steels

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Question: 21. Which type of corrosion is an attack on the grain boundaries of the metal? (Page 3-7)

Answer: Intergranular

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Question: 22. What is an advanced form of intergranular corrosion where the surface grains of a metal are lifted up by the force of expanding corrosion products occurring at the grain boundaries? (Page 3-7)

Answer: Exfoliation

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Question: 23. Which type of corrosion occurs because the environment of the local area is very different from the larger environment? (Page 3-7)

Answer: Crevice

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Question: 24. Which type of corrosion is a form of crevice corrosion which occurs on metal surfaces having a thin (~4 mils) organic protective coating? (Page 3-9)

Answer: Filiform

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Question: 25. Filiform corrosion occurs when the relative humidity of the air is between 65- 90%, and the air temperature is between which temperatures? (Page 3-9)

Answer: 70°- 100°F

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Question: 26. Which type of corrosion is the increase in the rate of attack on a metal due to the action of a corrosive fluid against the metal surface? (Page 3-10)

Answer: Erosion

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