ATO Corrosion Practice Exam

These questions are part of the practice quiz. Start practicing

• What method can prevent exfoliation corrosion?
• Avionic equipment areas may accumulate several substances contributing to corrosion. Which set of substances is accurate?
• What is the fundamental electrochemical process driving metal corrosion?
• How should lubricant be applied to minimize issues?
• What is the most common type of corrosion?
• What is the difference between repair and replacement when dealing with corrosion?
• Which statement about humidity’s role in corrosion is most accurate?
• Which statement about human waste products and corrosion is true?
• Which of the following sets of conditions must exist for corrosion to occur?
• How does the area ratio (anode to cathode) affect galvanic corrosion?
• What is stress corrosion cracking (SCC)?
• Which of the following is a common sign of corrosion in aircraft structures?
• Why is documentation important in a corrosion control program?
• Lubrication serves what dual purpose?
• Which statement best describes how dye penetrant testing identifies surface cracks?
• Which procedure requires reference to NAVAIR 01-1A-509-2 Chapter 2?
• Which pairing is known for high galvanic activity with aluminum?
• Which testing method uses a magnetic field to reveal surface and near-surface cracking by leakage fields?
• Who selects the methods to be used when dealing with corrosion?
• Which option is a valid touch-up painting method according to the material?
• Which is described as the most useful tool for detection of corrosion?
• Circulating Air drying oven is used to dry which items?
• Which painting method does the Environmental Protection Agency specify for use on aircraft surfaces?
• Fatigue corrosion is cracking of metals caused by the combination of fatigue and corrosion.
• What is a chromate-free alternative protective coating for aluminum?
• What is the consequence of moisture entrapment under coatings due to poor surface preparation?
• Exfoliation corrosion is commonly found on aluminum sheets around which components?
• What is corrosion under insulation (CUI) and why is it dangerous?
• Prior to using sealant, what must be checked?
• What is the method of fixing Moderate Corrosion?
• For Light Corrosion, the typical pitting depth is approximately...
• Why are chromate conversion coatings used on aluminum?
• What is mandatory when applying sealant if the previously applied sealant is damaged?
• Which statement best describes Detailed Inspection?
• Where can the date of manufacture and shelf life be found on the sealant?
• Which tool is commonly used to apply sealant?
• Which drying method is described as the most efficient for drying all types and sizes of equipment?
• Fatigue corrosion is best described as:
• What is the typical drying time for solvent vapor drying?
• What must you do for cold weather cleaning procedures below 40F?
• How does fuel contamination with water contribute to corrosion in fuel systems?
• Which statement about corrosion is true?
• When applying new sealant over an existing coating, how should the new sealant be applied?
• How does a Circulating Drying Oven work?
• Magnesium parts require special attention to which aspects?
• Which of the following is NOT a common sign of corrosion in aircraft structures?
• Which corrosion issue is associated with titanium alloys in some environments?
• Which volume lists consumable materials and equipment for avionics only (Air Force only)?
• Two types of batteries found on avionic equipment are
• Crevice corrosion and where is it commonly seen in aircraft?
• Crevice corrosion occurs when a stagnant solution pools in a crevice and the electrolyte inside the crevice has less oxygen and more metal ions than outside.
• What is corrosion fatigue?
• The process of deterioration of a metal due to chemical reaction with its surroundings is known as:
• Which corrosion type involves attack along grain boundaries due to sensitization?
• Why is surface preparation critical before coating?
• Which of the following areas is the Engine Compartment among corrosion-prone areas?
• Which term describes corrosion that occurs when different metals are in contact with each other in an electrolyte such as salt water?
• In electrochemical corrosion, what serves as the medium that facilitates ion movement between anodic and cathodic sites?
• What is corrosion?
• Which of the following is NOT a method of applying Lubricants?
• Moderate Corrosion pit depths may be as deep as...
• For aluminum alloys, what is a common corrosion concern?
• Which area is highly susceptible to corrosion and should be routinely surveyed, especially in helicopters with external ram air cooling?
• What is the maximum operating temperature for the Circulating Air Drying Oven?
• Rubber is subject to which issue that can cause deterioration of the rubber and corrosion of nearby metal surfaces?
• Hot corrosion occurs in the absence of water at high temperatures, such as those found in turbine engine, compressors, and hot sections.
• Light Corrosion is described as...
• What is a protective paint system and its typical layers?
• Which feature of the paint system helps reduce heat absorption?
• Which of the following is the Equipment Bay Area among corrosion-prone areas?
• What is anodizing and what benefit does it provide to aluminum?
• What is a sacrificial anode and how does it protect a structure?
• How does dye penetrant testing identify corrosion-related cracking?
• What is impressed current cathodic protection?
• Salt spray exposure influences corrosion by which mechanism?
• What is the method of fixing Light Corrosion?
• What actions are taken after corrosion is detected on an aircraft component?
• What must you do for hot weather cleaning procedures above 80F?
• Which components are typically found in the avionics equipment bay and should be inspected for corrosion, including hardware, electrical connectors, terminal boards, and junction boxes?
• Hot corrosion occurs at high temperatures in the absence of water.
• Which of the following is very effective for detecting surface corrosion when used with knowledge of where and what to look for?
• What is pit density and how is it used in corrosion assessment?
• What is uniform corrosion?
• Filiform corrosion is recognized by wormlike traces beneath the paint film.
• After corrosion detection, why is it important to assess structural impact before choosing repair or replacement?
• What must be done in order to guard against the danger of static electricity during all cleaning operations?
• What does ultrasonic thickness measurement assess in corrosion assessment?
• Why should a corrosion control plan be reviewed at major maintenance events?
• Which statement about corrosion under insulation (CUI) is true?
• Which corrosion occurs at contact areas between materials under load with repeated vibrations?
• What is the biggest contributor to corrosion in avionics?
• Which term is produced by closed boxes?
• What is corrosion in metals?
• When is the best time to prevent corrosion?
• What are the typical corrosion products formed on metals?
• During all cleaning operations, what must be done to guard against static electricity?
• Air Drying should not be used for which type of equipment?
• What is a potential consequence of pitting corrosion on sheet metal?
• What is the tool used to find and evaluate the extent of corrosion damage?
• Severe Corrosion pits are deeper than...
• How does magnetic particle testing work for corrosion cracks?
• What is the method of fixing Severe Corrosion?
• What is corrosion mapping and why is it important for maintenance?
• Which component within the avionics equipment bay should be inspected for signs of corrosion and is listed among the components to inspect?
• How does insulation or foam contribute to corrosion risk in aircraft?
• Which area is usually the last to be inspected for corrosion damage?
• Which non-destructive testing methods are used to detect corrosion?
• What is the purpose of wetting aircraft exteriors with fresh water before cleaning in hot weather?
• When should a Navy Aircraft be cleaned when ashore?
• Which statement about sealant shelf life is true?
• What is pitting corrosion and what environment promotes it?
• Which action is prohibited when dealing with depleted Uranium?
• Intergranular corrosion is defined as an attack on which part of the metal?
• What is pit depth and how is it measured?
• Galvanic corrosion requires which of the following elements?
• Crevice corrosion occurs where a stagnant solution has pooled and the crevice electrolyte contains less oxygen and more metal ions than outside.
• Which statement best describes Type II anodizing?
• What action should be avoided with Natural and Synthetic Rubber?
• Filiform corrosion is a special form of oxygen concentration cell corrosion or crevice corrosion on metal surfaces having an organic coating system.
• Which document contains basic corrosion prevention and maintenance information to be used at Organizational, Intermediate, and Depot levels?
• If the protective finish which covers the depleted Uranium is chipped, peeled, or otherwise removed so the dark gray or black depleted Uranium is visible, what must be done?
• In aircraft maintenance, cathodic protection is commonly used in which areas?
• How often should a Navy Aircraft be cleaned when aboard a ship?
• What is the key to successful preventive maintenance?
• Which volume lists approved consumable materials and equipment for cleaning and corrosion control for aircraft and avionics?
• Which painting method is commonly used for touch-ups due to low waste and minimal cleanup?
• Relief tubes are usually plastic and should not present a corrosion problem. Which option best states this?
• Sealant may be __ of their original shelf life after passing the required test.
• What factors contribute to CUI in aircraft skin assemblies?
• Which coating layer primarily serves as the final protective and cosmetic finish in a typical system?
• What is the purpose of corrosion inhibitors in primers?
• Uniform surface corrosion is described as which of the following statements?
• What is described as one of the most important tools for corrosion prevention and control that prevents intrusion of moisture, rain, saltwater, dust, and aircraft fluids?
• What is the primary objective of the Paint System?
• What is the effect of moisture entrapment due to insulation or foam on corrosion risk?
• Which volume covers cleaning and corrosion control procedures for avionics and electronics?
• Which area must be removed to facilitate inspection and is usually the last items to be inspected for corrosion damage?
• Which area should be inspected for signs of salt spray contamination and corrosion due to components like hardware and the ram air turbine?
• Air Drying is recommended for which items?
• Exfoliation corrosion is an advanced form of which corrosion type?
• What is intergranular corrosion and which material is commonly affected?
• In the electrochemical corrosion process, what happens at anodic sites?
• How does salt spray exposure influence aircraft corrosion?
• Water entrapment is ineffective because of what reason?
• Which drying device uses circulating air and temperature to dry avionic equipment?
• How does humidity affect corrosion in aviation environments?
• What is a chromate conversion coating and its main hazard?
• Which is not a degree of corrosion?
• Corrosion mapping is primarily used to do what?
• Which symptom characterizes pitting corrosion?
• What is the purpose of sealants in aircraft assemblies?
• Which of the following is NOT a function of corrosion control documentation?
• Which drying method is the fastest and uses a solvent ultrasonic cleaner to dry by evaporation?
• Which volume covers cleaning and corrosion control procedures for aircraft?
• What are the preferred touch-up painting methods due to low paint waste and no solvent cleanup?
• How can improper surface preparation cause coating delamination and corrosion?
• What should you not do to depleted Uranium?
• What is the primary objective of corrosion prevention in aviation maintenance?
• Lubricants fill air spaces and displaced water, and provide a barrier against corrosive medium. They primarily protect against which threat?
• Which area is a commonly affected by corrosion in aircraft equipment?
• Severe Corrosion is described as...
• Volume I of the Corrosion Program provides what type of information?
• Eddy current testing is used in corrosion detection to do what?
• In a protective paint system, which layer sequence correctly describes the order from substrate outward?
• Fretting corrosion occurs at contact areas between materials under load subject to repeated vibrations. Aluminum, Stainless Steel, and Titanium alloys are most susceptible to this type of corrosion because the movement removes oxide coatings.
• Which corrosion form is described as occurring in the absence of water at high temperatures, such as in turbine engines or hot sections?
• Intergranular corrosion tends to occur rapidly when which condition is present?
• Filiform corrosion is a special form of oxygen concentration cell corrosion or crevice corrosion which occurs on metal surfaces having an organic coating system.
• What should you not do with the portable 15 & 45 gallon Foam Generating Cleaning Unit without releasing pressure?
• What is passivation in stainless steel and why is it important?
• Which step is identified as the best time to address corrosion prevention?
• Type II vs Type III anodizing?
• Crevice corrosion typically occurs under which conditions?
• Which statement best describes the function of primer with inhibitors in a protective paint system?
• Which component listed as part of the avionics equipment bay should be inspected for corrosion and salt spray contamination along with other equipment?
• How should any excess lubricant be handled?
• What is a corrosion map and how is it used in maintenance planning?
• Which combination of features is used to determine corrosion severity?
• Fretting corrosion occurs at contact areas under load with repeated vibrations.
• Which chromate-free coating option is used for aluminum protection?
• Filiform corrosion is recognized by wormlike traces beneath the paint film.
• Which statement correctly differentiates galvanic corrosion from crevice corrosion?
• Which corrosion is a special form of oxygen concentration cell corrosion on metal surfaces with organic coatings and is identified by wormlike traces under the paint?
• Which material has high galvanic activity with aluminum?
• Pitting corrosion is most commonly found on which materials?
• How do environmental regulations influence corrosion protection choices?
• Galvanic corrosion occurs when which condition is met?
• Which practice illustrates glare reduction through a paint finish?
• Moderate Corrosion is characterized by...
• Pit density is most closely associated with assessing what aspect of corrosion?
• Which of the following factors influence galvanic corrosion rate?
• What is the role of primers in corrosion protection systems?
• Which statement best describes magnesium parts requiring special attention?