Corrosion Prevention and Control Practice Test

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• NAVAIR 01-1A-507 covers what information?
• Intergranular corrosion is defined as an attack on the grain boundaries of alloys under specific conditions. Which term best describes this phenomenon?
• What environments most strongly promote pitting corrosion in stainless steels?
• The coating specified by MIL-C-85285 is best described as which type?
• What is the role of corrosion coupons in a corrosion monitoring program?
• MIL-C-85285 is most closely associated with which of the following coatings?
• Intergranular corrosion occurs along which structural feature?
• Which coating option is a standard exterior protective coating for aircraft surfaces?
• Ground handling requirements for an aircraft are published in which document?
• Which topic is addressed by NAVAIR 16-1-540?
• What tools are approved for cleaning anodized aluminum surfaces?
• What are common anode materials used in galvanic CP for steel in soil or freshwater?
• What are some corrosion design allowances and how are they determined?
• What is MIL-P-6888 used for in corrosion removal?
• Why is humidity control important in the storage and curing of protective coatings?
• Why is material selection considered a cornerstone of corrosion prevention?
• Which of the following is a correct statement about spray gun classifications?
• What is the standard exterior protective coating for aircraft surfaces per MIL-C-85285?
• What is the difference between atmospheric corrosion and immersion corrosion?
• Explain the basic principle of cathodic protection and differentiate galvanic CP from impressed-current CP.
• What must be done on a daily basis with unpainted aircraft surfaces and actuating rods?
• The tarnishing of silver is a common example of which type of corrosion?
• Hydrogen embrittlement is most likely to affect which materials?
• What is the primary purpose of any paint finish?
• After it is mixed, the storage life of epoxy-polyamide primer is limited to the amount that can be used in how many hours?
• If an aircraft is scheduled to remain idle for more than 14 days but less than 28 days, what preservation level is required?
• What conditions promote stress corrosion cracking (SCC)?
• How does chloride concentration influence pitting corrosion in stainless steels?
• What causes fretting corrosion?
• After identifying assets and exposure, what is the next step?
• Which publication would you consult for corrosion removal limitations?
• Why is there a requirement to use a respirator when working with solvents?
• Anodic protection is used in which scenario?
• What principle guides the choice of cleaning agent relative to the cleaning method?
• What is the difference between a sacrificial anode system and an impressed-current system?
• Which statement is true regarding selecting a cleaning agent in relation to the cleaning method?
• When cleaning an aircraft what are the two directions in which cleaning compound and rinsing are applied?
• What is the purpose of corrosion control training for maintenance personnel?
• In the risk assessment sequence, which step logically follows 'evaluate corrosion mechanisms'?
• Pitting corrosion is first noticeable as what color deposit on a metal surface?
• What are three requirements for a corrosion cell to form?
• What are common inhibitors used in cooling water or closed-loop systems?
• What is the primary effect of moisture on avionics equipment?
• Which statement best describes how coatings contribute to corrosion resistance?
• NAVAIR 16-1-540 provides information on what topic?
• How will heat, humidity, and moisture affect the electrochemical reactions that cause metal to corrode?
• Identify indicators that a CP system is under-protected or over-protected.
• Which measurement technique is used to assess coating integrity and barrier properties by applying a small AC signal across frequencies?
• Why is chloride exposure troublesome for stainless steels?
• Corrosion-preventive petroleum, class 3, provides protection for which surfaces?
• What is design corrosion allowance and how is it applied to steel structures?
• What is the preferred surface preparation method for many components of support equipment?
• How should you remove moderate corrosion?
• The corrosion product known as iron oxide is commonly called what?
• What is the effect of using a paint finish on exposed surfaces?
• Complete information on the types and applications of aircraft paint systems is contained in what publication?
• For tolerance limits of dimensions of critical structural members, which document should be consulted?
• Which solvent may be used to spot-clean lightly soiled areas?
• What factor contributes to corrosion susceptibility in thick sections due to fabrication?
• What should you use during the abrasive process to prevent flash rusting?
• What is the recommended action when coating damage exposes bare magnesium?
• Following data collection, which step comes next?
• Pitting is the most common effect of corrosion on what alloys?
• After identifying mitigation options, what is the next step?
• All maintenance personnel must be formally trained in what program?
• Which of the following is an indicator of cathodic protection over-protection?
• Which of the following are the two main classes of spray guns?
• What is the primary function of the intercoat layer (tie coat) in a coating system?
• Which surface preparation standard is commonly used before coating steel?
• What material must be avoided as a substitute to aluminum oxide abrasive cloth and why?
• Filiform corrosion occurs on what metals?
• Level 1 engine preservation requires the fuel system to be at least what percent full for up to 60 days?
• MIC stands for microbiologically influenced corrosion. Which organisms commonly contribute to it?
• What is the role of potential monitoring in a CP system?
• What are the characteristics of a high-quality surface pretreatment for steel in CPC programs?
• Describe a corrosion management program (CMP) and its essential elements.
• General-purpose lubrication oil VV-L-800 is used when which condition exists?
• What manual should you refer to for tolerance limits for dimensions of critical structural members?
• Explain the term dielectric isolation and its importance in corrosion control.
• What publication should you refer to for information about structural corrosion?
• What factors determine the service life of a coating system in a marine environment?
• What must be done specifically when storing solvents that contain more than 24% chlorinated materials?
• What is a coating holiday and why is it important to test for it?
• Filiform corrosion commonly affects which metals?
• Why are thick structural sections most susceptible to corrosive attack?
• Cockpit fasteners should be touched up with what color paint?
• In a galvanic pair of steel and copper in seawater, which metal is the anode and what is the consequence?
• Which statement describes the relationship between a good corrosion prevention program and operating performance?
• What is carbonation in concrete and how does it relate to reinforcement corrosion?
• Which abrasive material should be avoided as a substitute for aluminum oxide, and what is the consequence?
• Dissimilar metal corrosion is usually due to which combination of factors?
• Operating units with the best safety records, maximum use of aircraft, and lowest operating costs will also have what program?
• Which material is most often used in engine exhaust areas of aircraft?
• What happens when dissimilar metals are electrically connected in an electrolyte within a CP system?
• What substance may be used to spot-clean lightly soiled areas?
• Which of the following is NOT an indicator of CP under-protection?
• Which of the following is NOT an approved tool for cleaning anodized aluminum surfaces?
• Which statement best describes the effect of chemically treating a surface for painting?
• Which pair correctly lists the two main spray gun classes used for applying coatings?
• What causes fatigue corrosion?
• Which statement best describes how environmental regulations influence the selection of corrosion prevention methods?
• Which statement about surface roughness and coating adhesion is most accurate?
• How does pinholing in coatings occur and how can it be mitigated?
• What is the primary type of aluminum used on naval aircraft?
• Which activity ensures ongoing oversight after risk controls are in place?
• What is a primary CP design consideration to avoid hydrogen evolution and coating damage?
• Which step involves identifying mitigation options?
• How many grades does MIL-C-16173 corrosion preventive compound have?
• In a holiday test, what is applied to detect discontinuities?
• Which statement best describes the minimum ignition source distance rule in coating operations with flammable materials?
• Which MIL specification is used for treatment of bare magnesium after coating failure?
• In concrete, two primary mechanisms of reinforcement corrosion and how can they be mitigated?
• When using paint removers, you should wear what type of protective clothing?
• Which statement best describes the visual cues for uniform corrosion versus localized corrosion?
• What design practice helps ensure compatibility between coatings and CP in service?
• Which visual cue is most indicative of uniform corrosion?
• Which professional is responsible for evaluating loss of structural strength in critical aircraft areas?
• In corrosion control, which factor helps decide whether anodic protection is favored over cathodic protection?
• What are common methods for preventing internal corrosion in pipelines carrying water or hydrocarbons?
• What CP-related coating issue can occur if a protective coating is misapplied, and what design considerations ensure compatibility?
• In relation to corrosion, what affect does moisture have on avionics equipment?
• What are the two sealants recommended for use on support equipment?
• How does chloride ingress into concrete promote reinforcement corrosion?
• When flammable materials are used, all ignition sources must be at least how far away from the work location?
• When failure of the coating occurs, you should remove corrosion and touch up the bare magnesium with what chemical treatment solution?
• Which measures are effective for preventing internal corrosion in pipelines?
• What is Linear Polarization Resistance (LPR) and what does it measure?
• Which topic is covered by NAVAIR 15-01-500?
• Copper and copper-based alloys are used in avionic systems for what purpose?
• What is the difference between protective inhibitors and corrosion inhibitors in open versus closed systems?
• Level 3 preservation duration is...
• Which NAVAIR publication is entitled Aircraft Weapons Systems Cleaning and Corrosion Control?
• Where is titanium most often used on an aircraft?
• Which method is considered the most desirable for mechanical corrosion removal?
• How does pH influence corrosion of carbon steel in aqueous environments?
• In galvanic corrosion minimization between metals in seawater, which approach best minimizes galvanic corrosion?
• What is the primary role of protective coatings in corrosion control?
• Information regarding corrosion removal limitations can be found in which publications?
• Why should dry-cleaning not be used in oxygen areas or around oxygen equipment?
• Pitting corrosion is particularly common on which alloy families?
• Safety solvent is currently referred to by what name?
• What factors most influence the rate of steel corrosion in marine environments?
• Where must flammable liquids be stored when not in use?
• The decay of metals as they combine with oxygen is known as what type of corrosion?
• Which preservation level is described as short term up to 60 days?
• In an electrochemical attack, electron flow is established in which direction?
• Which step is first in the corrosion risk assessment process for a facility's critical asset?
• By what means is dry-cleaning solvent applied?
• Which statement correctly pairs the preservation levels with their time frames?
• What are the most serious hazards in handling, using, and storing aircraft cleaning materials?
• How can concentration cell corrosion be controlled or even prevented?
• Why must electrolyte connectivity and proper grounding be ensured in CP design?
• What must you do before starting corrosion removal?
• Types 1, 2, and 4 of what cleaning compound are to be used on tactical paint schemes?
• How does relative humidity influence atmospheric corrosion rates, and what RH threshold is commonly used to indicate corrosion risk?
• How can cathodic protection affect protective coatings, and what condition can lead to edge disbondment?
• What is the purpose for chemically treating a surface for painting?
• Which two spray gun classes are commonly used for applying exterior coatings?
• What conditions promote galvanic corrosion?
• In a sacrificial anode CP system, what provides the protective current?
• Level 2 preservation duration is...
• PMIC stands for what?
• Which step involves estimating potential corrosion rates?
• Hydrated ferric oxide is commonly known as what kind of corrosion?
• What is the purpose of protective detailing such as scuppers in steel structures?
• Which property primarily determines which metal becomes the anode in a galvanic couple?
• After estimating rates, what is the next step?
• At a minimum, how often must aircraft be cleaned?
• Which design practice reduces corrosion risk in steel structures?
• Who should evaluate any loss of structural strength in critical areas of an aircraft?
• Briefly describe Electrochemical Impedance Spectroscopy (EIS) and its use in corrosion monitoring.
• Which statement describes the risk of dissimilar metal contact in corrosion-prone assemblies?
• Which environmental condition accelerates electrochemical corrosion?
• What is the most desirable method of mechanical corrosion removal?
• What is the primary factor to consider when selecting materials for constructing an aircraft?
• Describe a three-coat coating system and its functions.
• Which of the following is NOT one of the three primary corrosion control strategies?
• How do inhibitors such as nitrite function in closed cooling systems?
• Which of the following is a valid set of spray gun classes used in coatings application?
• Which statement correctly differentiates active corrosion from passive corrosion?
• Which statement correctly describes the relationship between MIL-C-85285 and exterior coatings?
• What is the purpose of a coating system holiday test?
• What is the role of coating systems in relation to CP and coating disbondment?
• Why is the conformable applicator cleaning pad better than a mop or bristle brush when cleaning aircraft surfaces?
• Fatigue corrosion is defined as the combined effect of corrosion and what?
• Which item is a component of a corrosion cell?
• What is the standard exterior protective coating for aircraft surfaces?
• What is the first step in efficiently cleaning an aircraft?
• MIL-C-81309 corrosion-preventive compound Type 3 is used on which equipment?
• What is cathodic disbondment and what factors influence it?
• Which topic is covered by NAVAIR 01-1A-507?
• Which practice applies when storing chlorinated solvents above 24%?
• What are three aluminum surface types insofar as corrosion removal is concerned?
• What is usually the cause of dissimilar metal corrosion?
• If you are working near flammable materials, what is the minimum distance required between ignition sources and the work area?
• MIL-C-16173 corrosion preventive compound is available in three grades. Which grades are easily removed with dry-cleaning solvent?
• Name three primary corrosion control strategies.
• What are examples of internal stress corrosion?
• What safety precaution must be taken before cleaning and stripping old finishes on aircraft?
• What does an intact coat of paint provide to naval aircraft?
• Which statement is a direct outcome of performing a coating system holiday test?
• In water entrapment areas of an aircraft, drains are required to be inspected how often?
• MIL-C-85285 is the specification for which coating?
• What should happen to a good corrosion preventive program when carrier-based aircraft return to shore after deployment?
• What does a coating system holiday test reveal?
• What type of motor should you use to power a flap brush?
• An intact paint coating on naval aircraft provides protection from what?
• What technical corrosion manual should you use for support equipment?
• The corrosion-prone areas for each aircraft are documented in which publication?
• Which step ensures ongoing monitoring of risk controls?
• Which of the following is NOT listed as a material that can be used as a cover when regular waterproof canvas is unavailable?
• Which publication contains information on preservation of Naval aircraft?
• What action best reduces corrosion risk during maintenance?
• Name a coating failure mode and a mitigation measure for it.
• What is sulfide stress cracking and why is it important in CPC?
• Crevice corrosion occurs where electrolyte is trapped in restricted gaps. Which design practices help prevent it?
• If potential monitoring shows the structure is over-protected, what consequence is likely?
• What factor determines the proper cleaning agent to use for aircraft cleaning?
• Which technical publication covers emergency reclamation procedures for naval aircraft?
• What step comes after ranking risk?
• Which practice reduces concentration cell corrosion during maintenance?
• How would you approach a corrosion failure investigation in a piping system?