Aircraft Cleaning Exam Questions and Answers Latest Update already Passed

Aircraft Cleaning Exam Questions and Answers Latest Update already Passed Three methods of cleaning aircraft exterior - Answers Wet wash, dry wash, polishing Two types of polishing - Answers Hand and machine Polishing can remove - Answers Oxidation and corrosion How to remove exhaust stains or oil - Answers Kerosene and other petroleum based solvent Before washing plastics - Answers Flush with fresh water to dissolve salt deposits and wash away dust particles What to use to wash plastics - Answers Soap and water by hand How to clean grease and oil from wheel wells and engine cowls - Answers Soak in 1:2 dilution of emusion cleaner When it comes to abrasives what can you use and not use - Answers Use aluminium oxide but not silicon carbide(carborundum), crocus or emry paper can imbed iron oxide into aluminium or magnesium How to neutralise acid deposits in lead acid battery compartments - Answers Baking soda How to treat acid burns from chemical cleaners and inhibitors - Answers Baking soda Phosphoric-citric acid mix is used to clean what - Answers Aluminium Type 1 phosphoric acid is or is not ready to use as packaged - Answers Is Type 2 phosphoric acid is or is not readily used from packaged - Answers No more a concentrate and must be diluted(mineral spirits) MEK is used as a solvent cleaner for what - Answers Metal surfaces and small area paint stripping Can you rub plastic with a dry cloth - Answers No can cause electrostatic charge and scratches Best cleaners to use in cabins - Answers Non flammable 6 non flammable a/c cabin cleaning agents and solvents - Answers Detergents and soaps, alkaline cleaners, acid solutions, deodourising or disinfecting agents, abrasives, dry cleaning agents 3 types of flammable and combustible agents - Answers High flash point, low flash point, mixed liquids Low flash point agents are one below what degrees - Answers 100 degrees f High flash point liquids are normally what type - Answers Stoddard solvents, kerosene Types of low flash point liquids - Answers Aviation gasoline, acetone, MEK, naptha and toluol Fire prevention precaution in cabins - Answers Ventilation Fire recommendations if flammable liquids used - Answers A/c outside, Class A fire extinguisher minimums - Answers 4-A Class b fire extinguisher minimums - Answers 20-b If aluminium corrosion is a problem what type of extinguisher should not be used - Answers Dry chemical Wash an engine with what solvents and from where - Answers Top of engine and kerosine/solvent ( use bristle brush to help) What can be used on propellers in terms of fluids - Answers Soap and approved cleaning solvents What can not be used on propellor blades - Answers Caustic material After rinsing off all solvents from propellor parts what must you do - Answers Coat in engine oil What is the most common petroleum based solvent in cleaning - Answers Stoddard solvent ( leaves residue upon evaporation) Aliphatic naphtha is recommended for - Answers Wiping down surfaces before paint, also acrylics and rubber Aromatic naphtha should not be confused with aliphatic naphtha because - Answers Aromatic naphtha is toxic and attacks acrylics and rubber Safety solvent is called - Answers Trichloroethane Safety solvent(trichloroethane) is used where - Answers General cleaning and grease removal, non flammable Kerosene mixed with solvent-emulsion type cleaners is used for - Answers Softening heavy preservative coatings Can kerosene leave a film behind which can be corrosive - Answers Yes Cleaning compounds used with oxygen - Answers Anhydrous ethyl alcohol, isopropyl alcohol, mix of freon and isopropyl alcohol When cleaning oxygen system should fluid be put in tanks and regulators - Answers No