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Corrosion Questions with Correct Answers
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Corrosion Questions with Correct Answers
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Corrosion Questions with Correct AnswersWhat is the greatest threat to the soundness of metals and structural
integrity of an aircraft? Correct Answer-metal corrosion
What is the primary consideration of a manufacturer during the design
and production of an aircraft? Correct Answer-aerodynamic efficiency
What is metal corrosion? Correct Answer-the decay of metals as they
combine with oxygen to form metallic oxides
What is corrosion? Correct Answer-a chemical process that is the
reverse of the process of smelting the metals from their ores
What does corrosion control depend on? Correct Answer-maintaining a
separation between susceptible alloys and the corrosive environment
What may the electrical conductor be in electrochemical corrosion?
Correct Answer-any foreign material: water, dirt, grease, or any debris
capable of acting as an electrolyte
The presence of what in any foregoing medium accelerates the current
flow and increases the rate of corrosive attack? Correct Answer-salt
What is the largest single cause of aircraft corrosion? Correct Answer-
the salt in seawater and air
,What determines the rate of the corrosion process? Correct Answer-
temperature, humidity, and chemicals in the environment
What is the single largest contributor in avionics corrosion? Correct
Answer-moisture
What is used to schedule and record all corrosion maintenance actions?
Correct Answer-the SE custody and maintenance history record,
OPNAV/51
How often must aircraft be washed and cleaned? Correct Answer-at least
2x a month, unless otherwise directed by NAVAIR
What events occur that makes cleaning the aircraft always mandatory?
Correct Answer-immediately after exposure to fire-extinguishing
materials; adverse weather conditions and salt spray; been parked near
sea walls during high wind conditions; low-level flight, repairs of
service that has left stains, smudges, or other gross evidence of
maintenance
What do preventative maintenance programs at o- and i- level
maintenance activities accomplish? Correct Answer-reduce maintenance
time spent repairing corrosion damage, reduce maintenance actions
caused by corrosion; increase avionics system reliability, sensitivity, and
output power, reduce phantom gripes caused by dirt, corrosion, and
moisture in connectors. plugs, and receptacles
, Where are the materials listed that you should use when cleaning or
performing corrosion control on aircraft and non avionics components?
Correct Answer-NAVAIR 01-1A-509
What should be done before opening a container of solvent that has been
stored in a high temperature area? Correct Answer-cool it down with a
stream of water
What should you do before storing a container? Correct Answer-inspect
for leaks and ensure closure of all plugs, caps, and covers
What is aliphatic naphtha? Correct Answer-an aliphatic hydrocarbon
product used as an alternate compound for cleaning acrylics
What is methyl ethyl ketone (MEK)? Correct Answer-a cleaner for bare
metal surfaces and areas where MIL-S-8802 sealant is to be removed
How is aqueous film-forming foam used? Correct Answer-to remove
fire-extinguishing agent MIL-F-24385 from aircraft surfaces
How is type I of the tactical paint scheme aircraft cleaning compound
used? Correct Answer-to clean paint and unpainted aircraft outdoors or
where enough ventilation is available- high-gloss or tactical paint
systems
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