Shared Flashcard Set

Details

CORROSION CONTROL
AMR
67
Aviation
Not Applicable
12/12/2011

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Cards

Term
What is the greatest threat to the structural integrity of an aircraft?
Definition
Metal Corrosion
Term
Formal training in corrosion control is a requirement for all maintenance personnel.
Definition
True
Term
The materials used in the construction of an aircraft chosen according to their
Definition
Weight-to-strength ratio
Term
Metals corrosion is defined as the deterioration of metals as they combine with
Definition
oxygen
Term
On naval aircraft, what materials are used most often to separate susceptible alloys from the corrosive environment?
Definition
Paints
Term
Which of the following is a description of the flow of electrons during electrochemical attack of a metal?
Definition
Electrons flow from the cathodic area to the anodic area, resulting in the deterioration of the anodic area.
Term
Which of the following conditions are factors in the electrochemical reaction that causes metals to corrode?
Definition
Heat, humidity and moisture
Term
Because variations in their composition, which of the following aircraft surfaces is the most susceptible to corrosive attack?
Definition
Thick structural
Term
Which of the following conditions is the single greatest contributor to avionics corrosion?
Definition
Moisture
Term
Which of the following publications provides information on aircraft corrosion control for organizational - level maintenance?
Definition
NAVAIR 01-1A-509
Term
Which of the following publications provides information on aircraft cleaning?
Definition
NAVAIR 16-1-540
Term
Which of the following publications provides information on avionics cleaning and corrosion prevention and control?
Definition
NAVAIR 16-1-540
Term
Which of the following publications provides information on the preservation of aircraft engine?
Definition
NAVAIR 01-1A-518
Term
Which of the following publications provides information on the preservation of the naval aircraft?
Definition
NAVAIR 15-01-500
Term
Which of the following publications provides information on the general use of cements, sealants and coatings used on aircraft?
Definition
NAVAIR 01-1A-507
Term
When carrier-based aircraft are transferred to shore activities. What happens to the scope of most corrosion preventive programs?
Definition
It decreases
Term
Normally, aircraft squadrons with the best corrosion preventive programs have which of the following benefits?
Definition
1. The best safety records
2. The most use of the aircraft
3. The lowest operating costs
4. All of the above
Answer: 4. All of the above
Term
As directed by NAVAIR, aircraft deployed aboard an aircraft carrier will be washed and cleaned a minimum of how often?
Definition
Twice each month
Term
Mandatory aircraft cleaning is always required after an aircraft is exposed to which of the following substances?
Definition
Fire-extinguishing materials splashed on the landing gear.
Term
Unpainted surfaces of struts and actuating cylinder rods should be cleaned or wiped down at what prescribed interval?
Definition
Daily
Term
When handling, using and storing aircraft cleaning materials, What is/are the most serious hazard(s) you will meet?
Definition
Flammability and toxicity
Term
When using hazardous chemicals, you should wear which of the following protective devices?
Definition
1. Gloves and aprons
2. A face shield
3. An approved respirator
4. Each of the above
Answer: 4. Each of the above
Term
solvents must be kept in specially marked containers if they contain more than what percent by volume of chlorinated materials?
Definition
24%
Term
When volatile and flammable materials are not being used, they should be stored in which of following areas?
Definition
Inside a separate building or flammable liquids storeroom.
Term
What solvent is generally used as an all-purpose cleaner in naval aviation maintenance?
Definition
Dry-cleaning solvent
Term
Which of the following solvents is an alternate compound for cleaning acrylics?
Definition
Aliphatic naphtha
Term
Safety solvent is intended for use when a high flashpoint is required. You should NOT use safety solvent to clean which of the following areas of an aircraft?
Definition
Oxygen systems
Term
To neutralize the effects of urine and waste products in the lavatories of aircraft, you should use which of the following cleaning agents?
Definition
Ammonium hydroxide or sodium bicarbonate
Term
In an intermediate maintenance activity, an avionics/ electrical maintenance branch that operates a "clean room" should use what type of MIL-C-81302 Freon cleaner?
Definition
I
Term
To produce a high-luster, long-lasting polish on an unpainted aluminum clad surface, you should use what mechanical cleaner?
Definition
Aluminum metal polish
Term
Which of the following devices should you use to perform a fast and economical cleaning of an aircraft?
Definition
Conformable applicators
Term
There are several steps that you must take before you can actually clean an aircraft. Which of the steps listed below is the first one you should take?
Definition
Select the correct cleaning agent for the method of cleaning that you will use
Term
Which of the following cleaning compounds should be used to clean an aircraft that is painted with the tactical paint system?
Definition
MIL-C-85570
Term
To ensure complete cleaning and rinsing of all aircraft surfaces, you should use which of the following washing sequences?
Definition
Underside of wings, underside of fuselage and tail, upper wing and fuselage center section, upper surfaces of fuselage and section, including vertical stabilizer
Term
Surfaces that are lightly soiled with oil may be spot-cleaned by wiping them with which of the following substances?
Definition
Dry-cleaning solvent
Term
In an emergency when an aircraft is without a regular waterproof canvas cover, suitable covering and shrouding may be accomplished by the use of which of the following materials?
Definition
Polyethylene sheet, polyethylene-coated cloth, and metal foil barrier material
Term
Where should you place the cowling and access panels when they are removed during a maintenance task?
Definition
On a pad or secure them to the aircraft
Term
The size and composition of an emergency reclamation team is determined by which of the following criteria?
Definition
Urgency of the situation
Term
Under which of the following conditions is an aircraft most susceptible to a corrosive attack?
Definition
When it is not being flown or when it is in shipment
Term
There are a total of how many levels of preservatives methods used on naval aircraft?
Definition
Three
Term
Level III preservation is used to preserve aircraft for what situation?
Definition
Long-term storage
Term
Level I preservation should be applied to an aircraft when it is out-of-service for more than what minimum number of days?
Definition
30
Term
Which of the following publications contains the requirements for Level I preservation?
Definition
Special MRC
Term
Which of the following is the main disadvantage of grade IV corrosion preventive compound (paralketone)?
Definition
It is easily removed by water spray
Term
What preservative compound should be used to provide protection for shock struts?
Definition
Corrosion-preventive petroleum, class 3
Term
Piano-wire hinges require lubricating and corrosion-protection. What water-displacing, low-temperature lubricating oil should you use?
Definition
Lubricating oil, general-purpose, preservatives, VV-L-800
Term
You should use corrosion preventive compound MIL-C-81309, type III, on which of the following equipment?
Definition
Avionic and electrical equipment
Term
Which of the following is a laminated metal-foil material used for the protection of acrylics during cleaning?
Definition
Water vapor proof barrier material
Term
You should check for corrosion and deterioration during which of the following inspections?
Definition
Daily, phase and postflight
Term
Corrosion may occur in several forms, depending on which of the following factors?
Definition
Metal involved, atmospheric conditions and corrosion-producing agents present
Term
Threadlike filaments that form under organic substances (such as paint film)
Definition
Filiform corrosion
Term
Fungus growths on the sealing materials of integrals of integral fuel tanks.
Definition
Microbiological corrosion
Term
slipping movement between two mating metal surfaces.
Definition
Fretting corrosion
Term
Uniform etching of the metal surfaces?
Definition
Direct surface attack
Term
Shallow indentations on deep cavities of small diameter that form on metal surfaces?
Definition
Pitting corrosion
Term
Caused by the difference in concentration of the electrolyte or the active metal on the anode and cathode?
Definition
Crevice attack
Term
Corrosive attack along the grain boundaries of a metal alloy?
Definition
Inter-granular corrosion
Term
Metal fractures caused by the combined effects of corrosion and stress applied in cycles to a part?
Definition
Fatigue corrosion
Term
Dissimilar metals in contact in a corrosive medium, such as salt water?
Definition
Galvanic corrosion
Term
Lifting up of the metal surface cause by the force of expanding corrosion products occurring at the grain boundaries just below the metal surface?
Definition
Exfoliation corrosion
Term
To identify all the corrosion-prone areas of your squadron's aircraft, you should refer to which of the following publications?
Definition
Applicable Periodic Maintenance Information Cards (PMICs)
Term
When avionic and structural corrosion is compared, which of the following effects is the main difference between avionic and structural corrosion?
Definition
Small amounts of corrosion can make avionic systems inoperable
Term
Before performing any maintenance on avionic or electrical systems, you should make sure that you have completed which of the following actions?
Definition
Secure all external electrical power
Term
What type of corrosion is usually found around electrical bonding and grounding straps?
Definition
Galvanic
Term
You are inspecting an aircraft ejection seat. It is very important that even the slightest indication of corrosion be found for which of the following reasons?
Definition
Slight amounts of corrosion may cause the seat to be inoperable
Term
When inspecting engine frontal areas and cooling air vents. What type of discrepancy(ies) are you likely to find?
Definition
Dirt, dust, gravel and rain erosion
Term
One corrosion-prone area of an aircraft is the bilge area. What condition is the best insurance against corrosion in this area?
Definition
Frequent inspections of the bilge area
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