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246 Cards in this Set
- Front
- Back
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Positively or negatively charged atom or group of atoms is
- Atom - Electrolyte - Electron - Ion |
Ion
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Smallest unit of an element is
- Atom - Electrolyte - Electron - Ion |
Atom
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Liquid solution, usually water, containing ions is
- Atom - Electrolyte - Electron - Ion |
Electrolyte |
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Negatively charged particle much smaller than an atom is
- Atom - Electrolyte - Electron - Ion |
Electron |
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In case of a conflict with corrosion control procedures, which manual would take precedence?
- NAVAIR 01-1A-509 |
NAVAIR 01-1A-509 |
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Which chapter of NAVAIR 01-1A-509 covers recommended materials and procedures for the application of sealing compounds to aircraft structures? |
Chapter 6
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Which chapter of NAVAIR 01-1A-509 describes what corrosion is?
- Chapter 1 - Chapter 2 - Chapter 3 - Chapter 4 |
Chapter 2
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Which appendix lists the recommended, consumable materials for cleaning, corrosion prevention, surface treatment, preservation and refinishing of aircraft?
- Appendix A |
Appendix A
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Most alloys used in aircraft construction are made up of regions called which of the following? - Pockets - Surfaces - Grains - Stress points |
Grains
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Which of the following types of corrosion can occur in heat treated metals when corrosive tendencies of one region are greater than they are in another region? - Intergranular - Pitting - Galvanic - Crevice |
Galvanic
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Almost all alloys used in aircraft construction are sensitive to which form of corrosion? - Pitting corrosion - Galvanic corrosion - Stress corrosion cracking - Intergranular corrosion |
Stress corrosion cracking
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Which of following is an electrolyte? - Salt water - Salt - Carbon - Metal |
Salt water
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Which type of corrosion would you assume has occurred, if the surface grains are lifted up by the force of expanding corrosion products occurring at the grain boundaries on aluminum and magnesium parts? - Corrosion fatigue - Pitting corrosion - Exfoliation corrosion - Galvanic corrosion |
Exfoliation corrosion
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When two dissimilar metals make electrical contact in the presence of a/an ____, the rate at which corrosion occurs depends on the difference in their corrosive tendencies. - Ion - Electrolyte - Neutron - Electron |
Electrolyte
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Corrosion is the electrochemical ____ of a metal as a result of its chemical reaction with the surrounding environment. - Accumulation - Generation - Assimilation - Deterioration |
Deterioration |
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Which of the following are the four most serious, destructive elements of the desert climate? - Low humidity |
Ultraviolet radiation
Fine dust High humidity High daytime temperatures |
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Corrosion is what type of process of metals returning to their normal state? - Man-made - Synthetic - Natural - Mechanical |
Natural
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Natural conditions which affect the corrosion process are moisture, temperature, ozone, sand, dust, solar radiation, insects, birds, microorganisms, and which of the following? 1. Storage location |
Salt atmosphere
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The ____ of galvanic corrosion also depends on the ____ of the parts in contact. 1. Rate, type |
Rate, size
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When a metal corrodes, the metal atoms lose which of the following and become positively charged metal ions in the electrolyte? - Positrons - Protons - Neutrons - Electrons |
Electrons
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Which type of corrosion is most commonly found on aluminum and magnesium alloys? - Exfoliation corrosion - Pitting corrosion - Corrosion fatigue - Galvanic corrosion |
Pitting corrosion
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Which of the following must exist for corrosion to take place? 1. A cathode must be present. |
Metal must be present
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Which of the following should a disciplined maintenance program include? 1. Washing an aircraft once a month |
Repairing damaged protective coatings
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What is the primary reason for aircraft cleaning? 1. To reduce aircraft static weight |
To allow for a thorough inspection
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What are the minimum requirements for washing an ashore-based aircraft? - Every 7 days |
Every 14 days
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What condition requires immediate cleaning? 1. Paint peeling, flaking or softening |
Spilled electrolyte in battery areas
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Which of following moderately alkaline cleaners is a more effective cleaner for removing heavy oils and greases? - MIL-PRF-85570 Type I |
MIL-PRF-85570 Type I
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Which of the following is a general purpose liquid nonionic detergent? - MIL-C-85704, Type I |
MIL-D-16791
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After applying MIL-PRF-85570, Type V to a dry surface, allow it to dissolve for approximately ____. 1. 1 to 2 minutes |
1 to 2 minutes
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Which of the following is the most common cleaning solvent used on aircraft, due to its low toxicity, minimal effect on paint and relative safety? - MIL-PRF-680, Type I |
MIL-PRF-680, Type II
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Which of the following is a poor degreaser? - Isopropyl alcohol |
Isopropyl alcohol
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Which of the following is a small, portable air-operated unit used for removing debris and water from aircraft? - Spray cleaning gun |
Pneumatic vacuum cleaner
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The portable 15 gallon foam generating cleaning unit is ____ for cleaning hard to reach areas. 1. A portable air-operated unit |
Compact, light, and ideal
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Which of the following is the first step for operating the Portable 45 gallon Foam Generating Cleaning
- Unit |
Release pressure
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The Universal Washer Unit must be operated under which of the following conditions?
- Inside the Blast Cleaning Cabinet - In the horizontal position - Only under adverse conditions - 15 feet away from aircraft |
In the horizontal position |
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Set the wash cycle timer for the Cabinet Style Parts Washer for ____ depending upon the type of soil to be removed and the quantity of soil on the parts. 1. 10 to 45 minutes |
3 to 30 minutes
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Match the appropriate caution with its corresponding situation. "Observe all cautions as specified in the appropriate system manual." 1. Oxygen systems |
Oxygen systems
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Match the appropriate caution with its corresponding situation. "Water must not be directed at pilot tubes, static ports, vents, etc. These areas shall be adequately protected.
1. Oxygen systems 2. Use of cleaners 3. Water intrusion |
Water intrusion |
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Match the appropriate caution with its corresponding situation. "Steam shall not be used for cleaning aircraft or components." 1. Oxygen systems |
Use of cleaners
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What is the purpose of pre-wash lubrication? - Protection against cleaning solution entrapment |
Protection against cleaning solution entrapment
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Which of following should be protected from direct impingement during maintenance, aircraft cleanings or operation? - Wings |
Brakes
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In order to prevent streaking, how should the aircraft be sprayed? 1. Downward and out |
Upward and out
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In step 5 of the detergent cleaning procedures, wheel wells, flap wells and other heavily soiled areas can be cleaned with ____. 1. MIL-C-81309 |
MIL-PRF-85570
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The waterless wipe down alternate method uses which water displacing corrosion preventive compound? 1. MIL-PRF-85570, Type I |
MIL-C-81309, Type II
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For limited water supply, apply the cleaner with which of the following? - Typewriter brush |
Cleaning sponge
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Ensure that the area within ____ of the solvent cleaning operation is clear and remains clear of all potential ignition sources. - 20 feet |
50 feet
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Routine scheduled cleaning should not be performed at temperatures below ____ degrees Fahrenheit. - 10 |
40
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Which post-cleaning procedures is correct? 1. Ensure all drain holes have water accumulation. |
Apply operational preservatives when necessary.
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According to the lesson, aircraft wash rack cleaning waste shall receive the equivalent of ____ sewage treatment.
- Primary - Secondary - Tertiary - Prolonged |
Secondary |
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Aircraft lubrication shall be accomplished by which of the following? - All hands |
Qualified personnel
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It is important not to use solid film lubricants in areas subject to rotational speeds above ____ rpm, under heavy loads or on roller bearing elements. - 10 |
100
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How should lubricants be applied to prevent accumulation of dust, dirt and other foreign matter? 1. They should be applied generously. |
They should be applied sparingly.
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The day to day application of CPCs to prevent corrosion on operational aircraft is known as ____ preservation. - Sealing |
Operational
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Which of the following types of MIL-C-81309, Corrosion Preventive Compound is non-conductive? 1. Type III |
Type III
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AMLGUARD is primarily applied by which of the following? - Brushing |
Aerosol spraying
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VV-L-800, Lubricating Oil, General Purpose, Preservative, Water Displacing, should not be used on which of the following? 1. Control panels |
Fuel cells
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Which of the following is a thin, relatively dry, semitransparent film through which identification can be read? 1. Grade 1 |
Grade 4
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Which of the following can be used to apply lubricants: - Cleaning cloth |
Grease gun, lever type
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Which of the following requires approximately 14 cfm of air at 50 psi to siphon solvent or cleaner from a container? - Spray cleaning gun |
Spray cleaning gun
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Which of the following is a water displacing corrosion preventive compound which forms a clear, dry, flexible film? - MIL-C-81309 |
MIL-C-85054 |
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The prevention and control of corrosion on aircraft is whose responsibility? 1. Command |
Command
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The proper pressure for the air regulator when operating the portable 45 gallon foam generating cleaning unit is between _____ psi. - 20-60 |
30-70
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Which of following must be operated in the horizontal position? 1. Pneumatic vacuum cleaner |
Univeral washer unit
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Which of the following is the first step in the post-cleaning procedures? - Remove covers and masking tape |
Remove covers and masking tape
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Which of the following is used to protect metal aircraft parts and components by preventing corrosive materials from contacting and corroding bare metal surfaces?
1. Corrosion preventive compound 2. Silicone sealing compound 3. Water-resistant compound 4. Lubricating oil compound |
Corrosion preventive compound |
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Highly alkaline cleaning compounds, with a pH greater than ____, are not authorized for Navy aircraft. - 5 |
10
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Which type of lubricant prevents galvanic corrosion coupling on close tolerance fittings and reduces fretting: - MIL-G-25013
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MIL-L-46010
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MIL-PRF-85570, Type IV is recommended for cleaning which of the following? 1. Exhaust tracks and gun blast deposits |
Exhaust tracks and gun blast deposits
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When performing the post-cleaning procedures, which of the following is used to remove all tape adhesive residues: - MIL-C-81309, Type I |
MIL-PRF-680, Type II
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The preferred method is ____ when fresh water is available for rinsing purpose.
- Low temperature cleaning - Detergent cleaning - Solvent cleaning |
Detergent cleaning |
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When applying lubricants through pressure type fittings with a grease gun, clean grease fitting with which of the following and a cleaning cloth before applying lubricant? 1. MIL-C-81309, Type II |
MIL-PRF-680, Class C
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If your wash rack is a source of hazardous waste, which of the following should you contact to determine corrective action? 1. Base safety |
Base safety
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Which of the following should be used prior to lubricating any components or parts to remove any foreign matter from joints, fittings, and bearing surfaces? 1. Woven damp rag |
Non-woven cleaning cloth
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Daily cleaning or wipe down is required on all exposed, unpainted surfaces when deployed within ____ miles or salt water and when flown below 3000 feet over salt water: - 1 |
3 |
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Frequent corrosion inspections are essentials to the overall corrosion control program and are the responsibility of which of the following: - All maintenance personnel |
All maintenance personnel
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Which inspection method is most widely used? - Visual |
Visual |
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When using the depth gage, how many times should personnel take depth readings in the affected area? 1. One |
Several
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When using the optical depth micrometer, which of the following is the correct formula to use when calculating the pit depth? 1. Pit depth = Distance B reading - Distance A Reading |
Pit depth = Distance B Reading - Distance A Reading
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Which of the following methods of inspection is used only when no other method can accomplish the inspection because the man-hour requirements are high on-aircraft radiography? 1. Ultrasonic |
Radiographic
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When evaluating corrosion damage, you must first do which of the following? 1. Spray with cleaning solvent |
Visually look for corrosion
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Magnesium parts are ____ corrosion prone. - Not |
Extremely
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Steel fasteners are subjected to high operational loads and which of the following types of intrusion? - Moisture |
Moisture
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Which area probably receives more abuse than any other area on the aircraft? 1. Faying surfaces and crevices |
Wheel wells
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What is the maximum depth that light corrosion is discolored and pitted? 1. One mil (0.001 inch) |
One mil (0,001 inch)
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When evaluating corrosion damage, a straight edge and what type of magnifying glass may be used to assist in determining if an area has previously been reworked? 1. 2X |
10X
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Which type of hinges are especially vulnerable to corrosion? - Box |
Piano
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During scheduled or unscheduled maintenance actions on aviation equipment or components, the area involved as well as those within what distance of the repair or treatment area must be visually inspected for corrosion? 1. 18 inches |
36 inches
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What does fluorescent penetrant inspection detect? - Stress corrosion cracking |
Stress corrosion cracking
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Corrosion in faying surfaces, seams, and joints is usually detectable by which of the following? - Bulging on the skin surface |
Bulging on the skin surface
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Which of the following is essential to the overall corrosion control program? - Daily cleanings |
Frequent corrosion inspections |
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What are the categories used for reporting degrees of corrosion: (Select all that apply) - Moderate |
Moderate, light, severe |
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A surface showing water breaks is indicative of ____, which will later interfere with conversion coating, sealing, and painting. - Combustion |
Contamination
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Which of the following do not adhere well to bare aluminum, but adhere very well to chemical conversion coating? 1. Latex primers |
Epoxy primers
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MIL-C-81706 has two classes. Which of the following are the two classes of MIL-C-81706? 1. 1 and 2 |
1a and 3
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Which of the following is the most commonly used form of MIL-C-81706? - Form IV |
Form III
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You should not store or mix surface treatment materials in containers previously containing what kind of product? - Wet |
Flammable
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Within how many hours should you prime a treated surface to avoid contamination? - 1 |
4
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Which of the following parts has critical balance requirements that require you to refer to the appropriate manual for evaluation and repair limits or corrosion, erosion, and abrasion damage? - Landing gears |
Helicopter rotary blades |
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Which paint removal would you use for areas of several square inches or less? - Chemicals |
Abrasive mat
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Chromic acid (Form II powder) is a strong oxidizer and may ignite on contact with organic materials and which of the following? - Reducing agents |
Reducing agents
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With what must the prepared surface be cleaned if it is allowed to become dirty or is scratched? 1. Finishing sander |
Wet abrasive mat
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Failure to remove all the corrosion may allow the corrosion to continue after affected surfaces are ____. - Refurbished |
Refinished
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Under which conditions should you apply corrosion preventive compounds? 1. Manpower will not permit the use of the corrosion treatment methods. |
Operations will not permit the use of the corrosion treatment methods. |
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Where should mixing of a chemical prepaint treatment be done, so as to avoid breathing toxic vapors? - An enclosed space with a fan |
A well ventilated area
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What should you use to prepare the surface of water sensitive areas: - Approved cleaning solvent |
Approved cleaning solvent |
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Paint removal by scuff sanding must not go beyond the primer coat, since complete removal of the paint can damage fibers in the surface layers of which of the following? - Aluminum materials |
Composite materials
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Which of the following factors may require more drying time for chemical conversion coatings? 1. Low temperature |
Low temperature
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Chemical prepaint treatments are also known as which of the following? - Composite films |
Chemical films
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Due to the irregularities in composite surfaces, complete removal of the paint can damage which of the following in the surface layers? 1. Laminate |
Fibers
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Which of the following generally consists of one componenet which cures by reacting with moisture in the air? 1. Adhesive promoters |
Silicone sealing compoungs |
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The adhesive backing is only required to hold the sealing tape in place until an access panel is re(installed). - True |
True
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The length of time that a mixed sealing compound remains usable is known as the dash number and is always identified by which number in a sealant designation? 1. First |
Last
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For ambient temperature thaw, place the PMF cartridge in a vertical position and let it stand at 70-80 degrees Fahrenheit for how long? 1. 10 minutes |
30 minutes
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When using the pneumatic sealant gun, the nozzle tip must be pointed into the seam and maintained at what degree angle to the line of travel? 1. 15 degree |
45 degree
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Which nozzle best represents the nozzle with the spring-loaded tip? - Countersink nozzles |
Rivet nozzles
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When using the injection gun, which nozzle would you use for hard to reach areas? - Rivet nozzles |
Extension nozzles
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Which picture best represents the semkit that stores the catalyst material within the injection rod to separate it from the base compound prior to use? - Injection style |
Injection style
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When spraying over seams whose configuration is less than 14 inches apart, which of the following is required? 1. Spray sealant lightly in a horizontal pattern |
Spray sealant in a solid, continuous pattern |
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Thick sealants may be applied with which of the following? - Caulking gun |
Non-metallic spatula
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Apply a thin coat of the adhesion promoter to the solvent cleaned surface with a clean cloth and allow the surface to dry for approximately how long? - 10 minutes |
30 minutes
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After cleaning, it is important to prime all surfaces with which of the following primers? - MIL-P-23377 |
MIL-P-23377
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Do not use AMS 3267 sealants in ____ temperature areas or for permanent structural installations. - High |
High
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Which of the following statements is true? 1. All sealants are toxic |
No RTV sealant, which produces acetic acid, shall be used on aircraft.
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For corners on aircraft and panels, cut the ends of tape at what type of angle? - 30 degree angle |
30 degree angle
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Running fingers back and forth on the sealant to press the tape against the aircraft structure and panel surface will activate the adhesive. - True |
True
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Which types of seals are used around access doors, removable panels, and inspection plates? - Removable |
Removable
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Joint areas that cold hold water shall be filled with which of the following? 1. MIL-S-83430 |
MIL-PRF-81733
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Which of the following seals is the most commonly found on aircraft? - Injection |
Fillet
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If corrosion damage is so extensive that structural repair is necessary, all faying surfaces between patches and skins shall be painted with three coats of epoxy primer, MIL-P-23377. - True |
False
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A sealant shall not be used until update testing has been performed, if it has exceeded which of the following? 1. Original shelf life |
Original shelf life
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An increase of how much temperature above 75 degree Fahrenheit is necessary to cut the application time by approximately half? - 8 degree |
18 degree
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Which type of brush should you use to clean around bolts, rivets, or other hard to reach areas? - Soft bristle |
Stiff bristle
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For how much of its original shelf life can a batch of sealant be extended if it achieves approximately the same hardness as sealant from kits that are not over aged? - One-eighth |
One-half
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Which of the following is an example of a fairing or smoothing tool for working sealants and adhesives into seams? - Fillet knife |
Spatula
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How long may it take to achieve a full cure for sealing compounds? 1. 7 minutes |
7 days
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The application life of a sealant is the length of time that a mixed sealing compound remains usable at 75 degree Fahrenheit and ___ relative humidity. - 20% |
50%
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RTV silicone adhesive/sealants conforming to MIL-A-46106 emit acetic acid and, therefore are ____. - Combustible |
Corrosive
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Which style of semkit holds proportioned amounts of the two components separated by an aluminum barrier? - Injection style |
Barrier style
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Which kind of sealant smoothing tools may be manufactured as needed to fit a specific situation? - Carbon fiber |
Plastic
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Which of the following generally consists of one component, which cures by reacting with moisture in the air? 1. MIL-S-81733 |
MIL-A-46146
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When applying sealants, what should you not allow to happen to the solvent, because it will allow some or all of the oil and dirt to redeposit, making it impossible to be removed with a dry cloth? - Spill |
Evaporate
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What is the primary purpose of sealants? 1. To prevent moisture |
To prevent the intrusion of moisture
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Which of the following sealants is non-toxic? - MIL-PRF-81733 |
ePTFE sealing tapes
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Sealants are used on battery compartments and relief tanks for which of the following reasons? 1. Fuel resistance |
Acid resistance
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What should you do with the sealant kit if the working time is not suitable for the intended purpose? 1. Dispose of the kit |
Dispose the kit
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Why should care be taken when useing rivet nozzles? 1. To permit sealant material to fill seams |
To prevent sealant material from filling fastener holes
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Paint materials, excluding primers and solvents, are toxic and flammable. - True |
False
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If paint materials or solvents contact teh eyes, what is the first thing you should do? 1. Wash the affected area with soap and water |
Rinse with fresh water for 15 minutes
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Extreme storage temperatures will do what to the effective shelf life of paint materials? - Lengthen |
Reduce
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If during specimen testing the paint meaterial is found to be homogenous, what should you do? - Further test it |
Retain it
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What is an operational reason for painting? - Identification markings |
Identification markings
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VOC contenet is reported as grams of solvent per liter of paint or G/L. Currently the national maximum permissible VOC content is ____ for aircraft primers. - 350 G/L |
350 G/L
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The second digit in the color fandeck system describes which of the following? 1. Color value |
Color family
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Which of the following is the most efficent and inexpensive for touch-up purposes (painting)? 1. Caulk gun |
Roller
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To which manual would you refer a sailor for touch-up procedures of avionics equipment? 1. NAVAIR 01-1A-509 |
NAVAIR 16-1-540
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What is an operational reason for painting? - Identification markings |
Identification markings
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The second digit in the color fandeck system describes which of the following? 1. Color value |
Color family
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Which of the following is the most efficent and inexpensive for touch-up purposes (painting)? 1. Caulk gun |
Roller
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To which manual would you refer a sailor for touch-up procedures of avionics equipment? 1. NAVAIR 01-1A-509 |
NAVAIR 16-1-540
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HVLP spray equipement are recommended since they have transfer efficeincies of what percent or better? - 45% |
65%
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As alternatives for touch-up painting, brushes and rollers should be used how many times? - 1 |
1 |
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About how much fluid does the applicator for the touch-up pen contain? - 10 ml |
10 ml
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After mixing the material, what shou you do next? 1. Immediately touch up the area |
Remove the brush cap and press the applicator against a scrap surface
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Which of the following can be obtained by measuring the time required for the material to flow from a cup with a specified volume through a specified orifice size in the bottom of the cup? - Velocity |
Viscosity
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Wet film thickness is obtained by placing the gage on wet film at which of the following angle? - 30 degree |
90 degree
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Rags and other cleaning materials saturated with waste solvent shall be deposited in a suitable container immediately after use because they are potentially ____. - Biological hazard |
Fire hazard
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Which of the following is correct about cleaning paint spray guns? 1. Immerse the entire gun into the cleaning solvent |
Disassemble the paint spray gun before cleaning
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Which statement is correct concerning surface preparation? 1. Aged paint does not require scuff sanding to ensure paint adhesion. |
After scuff sanding, remove residue from sander or feathered surfaces by using a cotton cheese cloth dampened with thinner.
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If the chemically treated metal has been allowed to accumulate oil, grease, fingerprints or other contaminants, wipe just prior to painting with which of the following? 1. Cloth soaked with isopropyl alcohol |
Cheesecloth soaked with thinner
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Which method of painting is most convenient for corners or other hard to reach areas? - Roller |
Brush
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After washing piano hinges and nodes, what should you apply to protect these parts? 1. MIL-PRF-81733 |
MIL-C-16173
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Which type of seal should be applied to exterior seams? - Dynamic |
Fillet
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Slip fit parts shall be assembled with mating surfaces. With which kind of surfaces shall press fit parts be installed? - Edging surfaces |
Faying surfaces
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Which of the following is a VOC compliant (340 G/L maximum) flexible polyurethane primer with corrosion inhibitors designed for use wherever high flexibility is required? - TT-P-2756 |
TT-P-2760 |
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Which of the following is an acrylic lacquer coating which can be used for application of temporary markings/MODEX where environmental regulations permit? - MIL-PRF-81352 Type I |
MIL-PRF-80352 Type I
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Which of these acts as an anti-slip coating? - P/N 8-B-6 |
A-A-59166 |
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Which of the following is ture of using paint equipment? 1. Clean the equipment every 4 hours during operation |
Do not allow water to remain in the equipment
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How should unevenly etched faying surface joints or fasteners and sharply protruding objects or corners be scuff sanded? - In an aggressive manner |
By hand
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In general, store paint materials between ____ and 100 degrees Fahrenheit. - 20 |
40
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Electrostatic painting is useful for painting large areas and produces ___ overspray with ____ transfer efficiency. - High, low |
Little, high
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The epoxy paint system consists of ____ and a compatible topcoat. - Conversion coating |
Primer
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Which of these is true concerning surface preparation? 1. Anyone is qualified to prepare a surface for painting. |
Abrasion of substrate materials during surface preparation can damage structural integrity
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The primary purpose of any paint system is the protection against which of the following and other forms of deterioration? - Excessive sunlight |
Corrosion
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Paint equipment shall be thoroughly cleaned immediately after use or at least every how many hours? - 1 |
2
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MIL-PRF-81352, Type I, acrylic lacquer coating can be used for applicaiton of-on which of the following where environmental regulations permit? - Temporary markings |
Temporary markings
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All aircraft shall be ____ during all painting procedures in order to guard against the danger of fire from static electricity. - Sheltered |
Grounded
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Which of following would be considered an operational use for painting? 1. To improve paint adhesion |
For camouflage
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Brushes and rollers are ____ for touch-up painting. - Alternatives |
Alternatives
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If during a test of paint material the material dries properly, the shelf life may be extended for how long? - 1 month |
6 months |
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What is the health hazard while breathing the vapors from organic solvent? 1. Acceptable with adequate ventilation |
Dangerous
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When should you overcoat the entire connection, including all bare areas on the metal surface with MIL-PRF-81733 sealant? 1. You should never coat the connection |
After the grounding or bonding connection has been made
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When corrosion occurs, what else is lost in addition to EMI protection? - The conductive path |
The conductive path
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If replacement seals are not available or do not exist, with what should you spray the contacting surfaces? 1. TT-I-375 |
MIL-C-81309
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Which of the following should you NOT do to natural and synthetic rubber? - Paint |
Paint
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Which person is only authorized to handle depleted uranium? - Duty chief |
Licensee
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Which of the following is the recommended solution for neutralizing potassium hydroxide from nickel-cadmium batteries? - 3% |
3%
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How much boric acid powder should you add to one pint of fresh water to make the recommended amount of boric acid neutralizing solution? - Three ounces |
One-half ounce
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In which type of container should you place contaminated items for disposal to prevent the contamination of cother areas? 1. Hand squeeze pump |
Leakproof container
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With what should springs, which are so tightly coiled that the areas cannot be plated or painted between the coils, be coated? - Chemical conversion coating |
Chemical conversion coating |
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What should you do to end fittings after installation on the aircraft or equipment? - Wash |
Paint
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What should you not use on transfer systems and on the surfaces of missiles using liquid propellant? - Degreasing solvent |
Degreasing solvent
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Which of the following tools should be used to remove deteriorated plating and corrosion on base metal (steel)? - Hammer |
Abrasive cloth
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Which type of corrosion often occurs because the type of sleeve or fitting chosen is not electrochemically compatible with the tubing? 1. Pitting |
Galvanic corrosion
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For how long must you allow corrosion preventive compound to dry before applying MIL-C-16173, Grade 4, or MIL-C-85054 over the same area? - 10 minutes |
1 hour
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To prevent malfunctions caused by EMI, what must be either built into the avionic device or added to access panels and doors? 1. Electrically conductive shielding |
Electrically conductive shield
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Which method should be used for applying corrosion preventive compound to interior surfaces of tubing closed by welded end plugs or components? 1. Fill and drain method |
Fill and drain method
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How often should interior and exterior relief tube areas be inspected and cleaned? 1. Quarterly |
After each flight
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Which compound is used to prevent corrosion on pin and/or pin receptacle end of connectors? 1. AMS-M-317 |
MIL-C-81309
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All rivets shall be installed wet with MIL-PRF-81733 sealant, except those located where? 1. At the mating surface |
In fuel contact area
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Which of the following best represents the mixture ratio of isopropyl alcohol and distilled water used to clean battery compartments? 1. 70% Alcohol, 30% Water |
70% Alcohol, 30% Water
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All removable structures shall be installed at the faying surfaces with which type of sealant? 1. Class A |
Class B
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With respect to depleted uranium counterweights, if corrosion occurs, what should you apply to prevent further corrosion? 1. AMLGUARD |
AMLGUARD
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Where is the source for water intrusion found on cases and covers? 1. Base |
Lead-in attachment points
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If the surface of a steel cable is corroded, how should you relieve cable tension and force the cable open to inspect it? 1. Reverse twisting |
Reverse twisting
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As a general rule, grease shall not be applied to rubber parts, but some parts require a grease coating. Which of the following is one of those parts? 1. O rings |
O rings
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With how many coats of epoxy primer should electrical conduit (exterior) and junction boxes (interior and exterior) be coated to electrically insulated them? 1. One |
Two
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What should you not do to depleted uranium under any circumstances? 1. Sand |
Sand
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All permanent structures shall be installed with MIL-PRF-81733 sealant at which of the following surfaces? 1. Faying |
Faying
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What should you always use on bare cadmium plating to prevent corrosion? 1. Wipe solvent (AMS 3166) |
A paint system
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Whenever possible, all salvageable components of the aircraft shall be treated how? - In order from most expensive to least expensive |
Simultaneously |
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Who directs the emergency reclamation team to perform salvage operations? - Maintenance control |
Maintenance control
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What is the final step before returning the equipment to serviceable status? 1. Send the equipment to the intermediate maintenance activity |
Certify the equipment operationally ready
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Which of the following is a true statement when carbon dioxide has been used as a fire extinguishing agent in a dry region with low temperature? 1. Apply water displacing CPC (MIL-C-81309, Type III) |
Ventilation is required |
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To remove residues with fresh water solutions of AFFF, which step should you not perform? 1. Apply water displacing CPC (MIL-C-81309, Type III) |
Mix a solution of one pint of AFFF fire extinguishing agent (MIL-F-24385) in 10 gallons of fresh water
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Which of the following is the primary concern for removing volcanic ash? 1. Ash will discolor the aircraft causing a camouflage disaster |
The extreme abrasiveness of the ash
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The final emergency cleaning procedure for the cockpit area is which of the following? 1. Apply water displacing CPC (MIL-C-81309, Type II) |
Apply water displacing CPC (MIL-C-81309, Type II)
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What is the first thing a sailor do when an ejection seat needs cleaning? - Apply MIL-C-81309, Type II |
Disarm
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To which manual would a Navy sailor refer for information concerning the cleaning procedures of avionics and electrical equipment? - T.O. 1-1689 |
NAVAIR 16-1-540
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Aircraft construction utilizing graphite fiber composite materials and metal structure or substructure creates a high potential for establishing which of the following? - Galvanic corrosion cells |
Galvanic corrosion cells
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For antennas, step 2 is to brush or spray a solution of one part aircraft cleaning compound (MIL-PRF-85570, Type II) in ____ water onto the affected area. - 7 parts |
9 parts |
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Turbine engines which are contaminated with small amounts of sea water entering the intake shall be cleaned using which of the following? 1. Solvent cleaning compound, A-A-59281 |
Engine gas path cleaner, MIL-PRF-85704
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If an angine has ingested Purple K Powder, what is the first step you should take? - With the power on, vacuum |
With the power off, vacuum
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Helicopter transmissions, rotor heads, and rotor hub cases are often constructed of which of he following? - Magnesium |
Magnesium
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Some rotor blades have areas commonly known as ____ or blade boxes with very small drain holes. - Pouches |
Pockets
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Which of following best represents what to do before beginning cleaning procedures for armaments? - Wipe dry |
Ground
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If there are residues left from the use of protein foam (MIL-F-24385), what shall you do first? 1. Dry area with air pressure no greater than 10 psi |
Rinse the area with fresh water
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If fresh water is not available for general cleaning, it is preferred you do which of the following? 1. Brush the affected area |
Spray the affected area with MIL-C-81309, Type II
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Which of these is a true statement concerning priority removal? 1. Component priority depends on maintenance schedule |
Priority removal shall always be oriented toward salvageable equipment
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Which of the following is the first step for cleaning ejection seats? 1. Disarm the ejection seat |
Disarm the ejection seat
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Under emergency conditions, who is responsible for minimizing damage? 1. All hands |
All hands
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When cleaning photographic equipment, first do which of the following? 1. Use a cleaning cloth to wipe away residue |
Rinse with fresh water
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Before starting emergency treatment, it is imperative that which of the following supervise purging or inerting procedures and certify that the aircraft is fire and explosion safe? 1. Qualified Ordnance Personal (QOP) |
Gas Free Engineer (GFE)
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After rinsing a rotor blade with fresh water, wash the affected area with a solution of one part aircraft cleaning compound in how many parts fresh water? 1. Seven |
Nine
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Components that are removed from the aircraft are tagged for identification purposes. What tagging components, make sure to indicate which of the following? 1. Preservation method |
Preservation method
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Rotor heads are often constructed of which of the following and require immediate decontamination and preservation? 1. Cadmium |
Magnesium
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Waht is the main purpose of emergency preparation? 1. Provide immediate medical assistance |
Prevent further damage
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