Name : (8060.1) When conducting a tap test on a composite panel, which of the following sounds would indicate delamination? Sharp ringing. B . Dull thud. C. Sharp thud. (8025) When dope-proofing the parts of the aircraft structure that come in contact with doped fabric, which of the following provide an acceptable protective coating? A. Resin impregnated cloth tape and cellulose tape. m Aluminum foil and resin impregnated cloth tape. C. Aluminum foil and cellulose tape. (8004) In cases of elongated bolt holes in a wood spar or cracks in the vicinity of boltholes, A. it is permissible to ream the hole, plug with hardwood, and redrill. B. the spar may be reinforced by using hardwood reinforcing plates. C. a new section of spar should be spliced in or the spar replaced entirely. (8088) Which of the following are generally characteristic of aramid fiber (Kevlar) composites? High tensile strength and flexibility. B. High tensile strength and stiffness. C. Corrosive effect in contact with aluminum and ability to conduct electricity. 5. (8012) When patching a plywood skin, abrupt changes in cross-sectional areas which will develop dangerous stress concentration should be avoided by using A. circular or elliptical patches. square patches C. doublers with any desired shaped patches. 6. (8015) When and how is finishing tape applied on a fabric-covered aircraft? A. Sewed or laced on before dope is applied. B. Doped on immediately prior to the finish coat. C. Doped on after the first or second coat of dope. (8080) When necessary, what type of cutting fluid is usually acceptable for machining composite laminates? Water soluble oil . Water displacing oil, C. Water only, (9033) For doped and overlapping span-wise seams on a wing's leading edge, overlap the fabric at least 4 inches, and cover with finishing tape at least 3 inches wide, with the tape centered on the leading edge of the wing. B. cover with finishing tape at least 4 inches wide, with the tape centered on the