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! ! ! Set-7
Aircraft Hardware NOT pOWERpLANT
| Question | Answer |
|---|---|
| 1. When the specific torque value for nuts is not given, where can the recommended torque value be found? a. AC 43.13-1B. b. Technical Standard Order. c. AC 43.13-2A. | A |
| 2. A sheet metal repair is to be made using two pieces of 0.0625-inch aluminum riveted together. All rivet holes are drilled for 1/8-inch rivets. The length of the rivets to be used will be a. 3/16 inch. b. 5/32 inch. c. 5/16 inch. | C |
| 3. (Refer to General Figure 42.) Which of the bolthead code markings shown identifies an AN corrosion resistant steel bolt? a. 1 b. 3 c. 2 | B |
| 4. A bolt with an X inside a triangle on the head is classified as an a. AN corrosion-resistant steel bolt. b. NAS close tolerance bolt. c. NAS standard aircraft bolt. | B |
| 5. Heat-treated rivets in the D and DD series that are not driven within the prescribed time after heat treatment or removal from refrigeration a. may be returned to refrigeration and used later without reheat treatment. b. must be discarded. c. must be reheat treated before use. | C |
| 6. A sheet metal repair is to be made using two pieces of 0.040-inch aluminum riveted together. All rivet holes are drilled for 3/32-inch rivets. The length of the rivets to be used will be a. 1/8 inch. b. 5/16 inch. c. 1/4 inch. | C |
| 7. Most rivets used in aircraft construction have a. smooth heads without markings. b. a raised dot. c. dimples. | C |
| 8. (Refer to Airframe Figure 2.) Select the preferred drawing for proper countersinking. a. 2 b. 1 c. All are acceptable. | B |
| 9. The length of rivet to be chosen when making a structural repair that involves the joining of 0.032-inch and 0.064-inch aluminum sheet, drilled with a No. 30 drill, is a. 1/4 inch. b. 7/16 inch. c. 5/16 inch. | C |
| 10. (Refer to General Figure 43.) Identify the clevis bolt illustrated. a. 1 b. 3 c. 2 | B |
| 11. Unless otherwise specified or required, aircraft bolts should be installed so that the bolthead is a. downward, or in a forward direction. b. upward, or in a forward direction. c. upward, or in rearward direction. | B |
| 12. Generally speaking, bolt grip lengths should be a. equal to the thickness of the material which is fastened together. b. equal to the thickness of the material which is fastened together, plus approximately one diameter. c. one and one half times the thickness of the material which is fastened together. | A |
| 13. The length of a rivet to be used to join a sheet of .032-inch and .064-inch aluminum alloy should be equal to a. one and one-half times the rivet diameter plus .096 inch. b. three times the rivet diameter plus .096 inch. c. two times the rivet diameter plus .064 inch. | A |
| 14. What is the Diameter of a AN6-7A Bolt? a. 3/16” b. 7/16” c. 3/8” | C |
| 15. Aircraft hardware Part number is AN25-6. Which digit represents the length of the clevis Bolt? a. 5 b. 6 c. 25 | B |
| 16. What is the length of a AN6-7A Bolt? a. 3/8” b. 6/8” c. 7/8” | C |
| 17. A particular component is attached to the aircraft structure by the use of an aircraft bolt and a castle tension nut combination. If the cotter pin hole does not align within the recommended torque range, the acceptable practice is to a. change washers and try again. b. exceed the recommended torque range by no more than 10 percent. c. tighten below the torque range. | A |
| 18. How is a clevis bolt used with a fork-end cable terminal secured? a. With a castle nut tightened until slight binding occurs between the fork and the fitting to which it is being attached. b. With a shear nut tightened to a snug fit, but with no strain imposed on the fork and safetied with a cotter pin. c. With a shear nut and cotter pin or a thin self-locking nut tightened enough to prevent rotation of the bolt in the fork. | B |
| 19. Aircraft bolts are usually manufactured with a a. class 2 fit for the threads. b. class 3 fit for the threads. c. class 1 fit for the threads. | B |
| 20. Which statement regarding aircraft bolts is ? a. When tightening castellated nuts on drilled bolts, if the cotter pin holes do not line up, it is permissible to overtighten the nut to permit alignment of the next slot with the cotter pin hole. b. Alloy steel bolts smaller than 1/4-inch diameter should not be used in primary structure. c. In general, bolt grip lengths should equal the material thickness. | C |
| 21. Aircraft bolts with a cross or asterisk marked on the bolt head are a. close tolerance bolts. b. standard steel bolts. c. made of aluminum alloy. | B |
| 22. How is the locking feature of the fiber-type locknut obtained? a. By a fiber insert held firmly in place at the base of the load carrying section. b. By the use of an unthreaded fiber locking insert. c. By making the threads in the fiber insert slightly smaller than those in the load carrying section. | B |
| 23. When an MS20470D rivet is installed, its full shear strength is obtained a. by the cold working of the rivet metal in forming a shop head. b. only after a period of age hardening. c. by heat treating just prior to being driven. | B |
| 24. The shop head of a rivet should be a. one and one-half times the diameter of the rivet shank. b. one and one-half times the diameter of the manufactured head of the rivet. c. one-half times the diameter of the rivet shank. | A |
| 25. Where is an AN clevis bolt used in an airplane? a. Only for shear load applications. b. Where external tension loads are applied. c. For tension and shear load conditions. | A |
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