Dale Crane's Oral and Practical Exam Guide questions with correct answers

What is used to clean transparent plastic windshields and windows of an aircraft? CORRECT ANSWER -Mild soap and lots of water -Before applying soap and water to plastic surfaces, flush the plastic surfaces with fresh water to dissolve salt deposits and wash away dust particles. Plastic surfaces should be washed with soap and water, preferably by hand. Rinse with fresh water and dry with a chamois, synthetic wipes designed for use on plastic windshields, or absorbent cotton. In view of the soft surface, do not rub plastic with a dry cloth since this is not only likely to cause scratches, but it also builds up an electrostatic charge that attracts dust particles to the surface. (FAA-H-8083-30, Ch. 06) What is used to neutralize the electrolyte from a lead-acid battery that has been spilled on an aircraft structure? CORRECT ANSWER A solution of sodium bicarbonate and water What is used to neutralize the electrolyte from a nickel-cadmium battery that has been spilled on an aircraft structure? CORRECT ANSWER A solution of boric acid and water, or vinegar What solvent is recommended for removing grease from aircraft fabric prior to doping it? CORRECT ANSWER Methyl-ethyl-ketone (MEK) or lacquer thinner Identify the areas of an aircraft that are most prone to corrosion CORRECT ANSWER Battery compartment, exhaust system and exhaust trails, wheel wells, lower area of the belly (bilge), piano hinges, areas of dissimilar metal contact, welded areas, inside of fuel tanks (especially integral tanks), metal fittings under high stress, lavatories, and food service areas