(AET) Study Guide - NCATT

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Page 27 of 5115. Hazards/Safety Practices NCATT Training Standard Level (A)(e) MicrowaveObjective:Identify basic facts and terms about hazards and safety practices concerning microwave energy.Content – Microwave Energy:Radio Frequency (RF) energy and microwave energy are forms of electromagnetic energy; theydiffer in frequency and wavelength. Explain the terms and safety programs with reference to thefollowing terms:• Microwave (MW) Energy—Microwave energy/radiation. Microwave energy is one formof electromagnetic energy that makes up the electromagnetic spectrum. Microwavefrequencies are normally used for satellite communication and radar. These frequenciesare also used for bonding composite sheets for the automotive and aerospace industries.• Microwave Protection Program—Includes training in normal operation of equipment,support such as periodic screening of employees and facilities, and appropriateemergency procedures.15. Hazards/Safety Practices NCATT Training Standard Level (A)(f) Hazardous LiquidsObjective:Identify basic facts and terms about hazards and safety practices concerning hazardous liquids.Content – Hazardous Liquids:Explain the importance of manufacturer’s warnings and recommendations for hazardous liquidsafety practices with reference to the following terms:• Hazardous Liquids—Includes corrosives, ignitables, and reactives, as well as chemicalsused as solvents, cleaners, caustic solutions, degreasers, strippers, adhesives, andcoatings.• Solvents—Substance that dissolves another substance or substances to form a solution.Solvents are usually, but not always liquid. Solvents can also be gases or solids. Twoextremely hazardous solvents used in the aircraft industry are the following:o Methyl Ethyl Ketone (MEK)—Solvent used in the surface coating industry and indewaxing of lubricating oils. Methyl Ethyl Ketone is commonly used with otherosolvents such as acetone, ethyl acetate, hexane, toluene, and alcohols.Acetone—Organic solvent of industrial and chemical significance. Acetone iscolorless, volatile, and extremely flammable.• Cleaners—Substances that may contain solvents, corrosives, or any number of chemicalsto clean an aircraft.• Caustic Solutions—Substances that can burn and destroy living tissues or soft metals.Caustic solutions are usually strong acids and/or bases.Copyright © 2008 by the National Center for Aircraft Technician Training. All rights reserved.Individuals may download, print, and make copies of this documentfor their own personal use. Commercial use prohibited.
Page 28 of 51• Degreasers and Strippers—Substances that clean commercial and industrial parts. Manydegreasers and strippers contain flammable and toxic elements.• Adhesives—Substances that adhere or bond two components, or items, together. Manyadhesives contain flammable and toxic elements.• Coatings—Substances that function to protect surfaces. Coatings contain pigments,paints, solvents, drying oils, and other additives.• How to Obtain Proper Material Safety Data Sheet (MSDS) Information—See HazardousMaterial Handling/Material Safety Data Sheet.15. Hazards/Safety Practices NCATT Training Standard Level (1a)(g) Practice FOD PreventionObjective:Determine simple facts about Foreign Object Damage (FOD) prevention activities.Content – Practice FOD Prevention:Explain FOD prevention and accountability with reference to the following terms:• FOD (Foreign Object Debris)—Substance, debris, or article alien to a vehicle or systemthat has invaded the product and could cause damage.• FOD (Foreign Object Damage)—Any damage or incident attributed to a foreign objectthat can be expressed in physical or economic terms which may or may not degrade theproduct’s required safety and/or performance characteristics.• FOE (Foreign Object Elimination)—Program or process used to assure a FOD-freeproduct/system.• Clean As You Go—Includes the following:ooClean the immediate area when work cannot continue.Clean the immediate area when work debris has the potential to migrate to an out ofsight or inaccessible area and cause damage and/or give the appearance of poorworkmanship.o Inspect and clean all tools after job completion or end of shift.o Clean the immediate area after work is completed and prior to inspection.o Clean at the end of each shift.o If you drop something or hear something drop - pick it up!• Tool Control and Management—Methods of tool control and accountability includeshadow box/board, tether, chit system, tool inventory sheets/logs, tool pockets, toolidentification, consolidated tool kits, tool conditions, sponge count, and electronic toolaccountability systems.• FOD Prevention Program—Includes training in FOD control, management, andaccountability, and support such as periodic screening of employees and facilities.Appropriate emergency procedures need to be followed when FOD becomes hazardous.Copyright © 2008 by the National Center for Aircraft Technician Training. All rights reserved.Individuals may download, print, and make copies of this documentfor their own personal use. Commercial use prohibited.
Page 1 and 2: Aircraft Electronics Technician(AET
Page 3 and 4: Page 2 of 51National Center for Air
Page 5 and 6: Page 4 of 51NCATT Standards for Air
Page 7 and 8: Page 6 of 51• Ohm (Ω)—Unit of
Page 9 and 10: Page 8 of 512. Basic Circuits NCATT
Page 11 and 12: Page 10 of 513. Basic Circuit Calcu
Page 13 and 14: Page 12 of 514. Resistors NCATT Tra
Page 15 and 16: Page 14 of 51• Uses of Multiple C
Page 17 and 18: Page 16 of 51Content - Analog Circu
Page 19 and 20: Page 18 of 51• Low-pass—Allows
Page 21 and 22: Page 20 of 5112. Limiter Circuits N
Page 23 and 24: Page 22 of 5113. Digital Numbering
Page 25 and 26: Page 24 of 51Content - Counters:Exp
Page 27: Page 26 of 51Content - Electrical P
Page 31 and 32: Page 30 of 5116. Hazardous Material
Page 33 and 34: Page 32 of 51• Specifics to Follo
Page 35 and 36: Page 34 of 51• Various Media Cont
Page 37 and 38: Page 36 of 51Content - Interpret Ai
Page 39 and 40: Page 38 of 51• Causes of Corrosio
Page 41 and 42: Page 40 of 51• Common Insulating
Page 43 and 44: Page 42 of 51Content - Continuity C
Page 45 and 46: Page 44 of 51• Empennage Componen
Page 47 and 48: Page 46 of 51o Set internal or exte
Page 49 and 50: Page 48 of 51Note: It is a good ide
Page 51 and 52: Page 50 of 51Identifying good safet

(AET) Study Guide - NCATT

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