Module 6 (B1) Module 6 (B1) quiz contains 72 question based on the syllabus for module 6 examination for B1 category. The time limit for the quiz is 90 min. The number of attempts allowed are unlimited. All the best. Name 1. Thrust bearings take radial loads journal loads sideloads None 2. What are the rigid pipes on gas turbine engines made from? Aluminium alloy Stainless steel Copper None 3. In the American Wire Gauge (AWG) system of numbers used to designate electrical wire sizes, the number assigned to a size is related to its cross sectional area current-carrying capacity combined resistance and current- carrying capacity None 4. Instrument Mounting nuts are non-magnetic prevented from dropping behind the instrument panel by magnetism soldered in place during manufacture None 5. Chemical attack is a direct result of filiform corrosion cathodic & anodic changes in the material intergranular corrosion None 6. When normalising, the material is cooled slowly quenched immediately left to cool in room temperature None 7. If a material is found to be in the tertiary phase of creep the following procedure should be implemented: The component should under go dye penetrant process and condition monitored The component should be replaced immediately The crack should be stop drill, condition monitoring should be applied None 8. A flight control cable is replaced if the protective fluid coating is missing single wires are blended together a wire is 20% worn None 9. The teeth of a gear would normally be case hardened tempered nitrided None 10. Following solution treatment aluminum alloy can be placed into service after 24 hours straight away after 5 days None 11. The cracking of structural members under repeated stress lower than the ultimate tensile load is known as stress reversal creep fatigue failure None 12. 7 * 7 cable has seven stranded wires each with 49 wires 7 wires 14 wires None 13. Non heat treatable materials can be hardened by annealing can be hardened by strain hardening or cold working cannot be hardened None 14. A 7x7 cable has seven strands each of fourteen wires one wire seven wires None 15. What would be the diameter and length of a solid rivet if the following markings are given, AS 162-408? 1⁄2 inch dia, 1 inch length 1⁄8 inch dia, 1⁄2 inch length. 1⁄4 inch dia, 1⁄2 inch length None 16. Aircraft flying control cables are normally classified by the number of strands it contains and the number of wires in each strand minimum breaking load or the diameter in inches circumference of the cable and overall length None 17. MIL-H-5606 hydraulic fluid O-rings are identified with a blue dot yellow dot yellow and white dot None 18. A factor which determines the minimum space between rivets is the diameter of the rivets being used length of the rivets being used thickness of the material being riveted None 19. A joggle in a removed rivet is indication of what type of partial failure? Bearing Shear Compression None 20. The pitch of a screw thread is crest to root crest to crest 2 * crest to root None 21. 1% Nickel, 1% Carbon, steel is widely used for high tensile steel bolts ball and roller bearings exhaust valves None 22. In the drawing, what letter represents the nominal length of a BSF bolt? A B C None 23. A single row ball bearing is best suited to accepting axial and radial Loads radial loads only axial loads only None 24. Rivet allowance is 1.5d 1.5d plus the thickness of the material 1d plus the thickness of the material None 25. Threaded rivets (Rivnuts) are commonly used to join two or more pieces of sheet metal where bearing strength is desired join two or more pieces of sheet metal where shear strength is desired attach parts or components with screws to sheet metal None 26. Turnbuckles are correctly fitted when the inspection hole is blind or the required number of threads are showing both rods are seen to touch in the inspection hole both rods enter the barrel by the same amount None 27. Intergranular corrosion in structural aluminum alloy parts may be detected by the white, powdery deposit formed on the surface of the metal cannot always be detected by surface indications are not likely to occur in parts fabricated from heat-treated sheet aluminum None 28. The most suitable mixture for a salt bath operation is 70% sodium chlorate and 30% sodium nitrate 20% nitrate of soda and 80% sodium nitrate 90% nitrate of soda and 10% sodium nitrate None 29. An aluminium alloy L37 rivet identification is D embossed O embossed X embossed None 30. When a solid rivet is formed it only holds 75% of its shear strength, the other 25% comes from heating the completed assembly leaving assembly for 4 days to age harden cooling completed assembly None 31. What rivets should be used with nickel alloy steel? Aluminium Alloy Mild Steel Monel None 32. What is the indication of fretting corrosion on aluminum alloy? Black powder Brown powder White powder None 33. Needle bearings resist radial and axial load axial load only radial load only None 34. Intergranular corrosion may have no visual surface indication can be recognized by its flaking and lifting of the material layers can be recognized by a grey powder deposit None 35. British aircraft cables are classified by their breaking loads in lbf, where 1 lbf = 4.448N breaking load in hundredweights diameter and breaking load in Hundredweights None 36. What action is taken to protect integral tanks from corrosion due to micro-biological growth? The inside of the tank is coated with yellow chromate Rubber liners are installed in the tank A biocidal additive is used in the fuel None 37. What is the smallest size cable that may be used in aircraft primary control systems? 1/4 inch 5/16 inch 1/8 inch None 38. Composition of silver solder is tin, lead, silver and antimony tin and lead tin, lead and silver None 39. Heat treatment is shown on a British aluminum alloy by a letter code number code letter and number code None 40. Sheet metal should be stored stacked flat to prevent bending of sheets on its edge in racks to prevent scratching above 25 degrees centigrade None 41. Countersunk rivets have two angles of countersink, these are 125 - 135 degrees 100 -160 degrees 100 - 115 degrees None 42. The term 'cold flow' is generally associated with rubber hose welding and sheet metal vaporizing fuel None 43. When installing coaxial cable, it should be secured along its entire length at 2-foot intervals wherever the cable sags at 1-foot intervals None 44. An internal circlip can be used to retain a ball bearing in a housing & on a shaft retain a ball bearing on a shaft retain a ball bearing in a housing None 45. Rivnuts were originally used for securing cabin floorings securing rubber de-icing boots securing structural parts None 46. A fire resistant cable must maintain adequate insulation in a fire for 5 minutes 10 minutes 30 minutes None 47. A material has the code 2024-TH6 on it. Which part of the code indicates the percentage of the alloying element? 20 H 6 None 48. What is the effect of precipitation heat treatment on aluminum? It speeds up age hardening process It softens the material to allow it to be worked It delays the age hardening process None 49. How is the locking feature of the fibre-type locknut obtained? By a fibre insert held firmly in place at the base of the load carrying section By the use of an unthreaded fibre locking insert By making the threads in the fibre insert slightly smaller than those in the load carrying section None 50. Corrosion is always completely removed to fit new parts to prevent further damage to permit the extent of damage to be assessed None 51. A crankshaft would be fitted with a cylindrical roller bearing taper roller bearing spherical roller bearing None 52. Pure aluminum is not resistant to corrosion highly resistant to corrosion reasonably resistant to corrosion None 53. Cable tension is maintained by a cable tension regulator a fairlead a grommet None 54. In the anodic film inspection and sealing test, if a good seal has been accomplished the dye mark has no importance. the dye mark will rub off the dye mark will not rub off None 55. What type of heat treatment can be used on DD rivets? Solution Treatment Precipitation Annealing None 56. A cable is marked NYVIN 22. The 22 represents the current/weight ratio cross sectional area current rating None 57. Corrosion products should be removed from magnesium alloys by the use of a solution of 10% by volume of chromic acid in distilled water with 1% phosphoric acid aluminum wool a solution of 10% by weight of chromic acid in distilled water with 0.1% by volume of sulphuric acid None 58. Excessive stress on fluid or pneumatic metal tubing caused by expansion and contraction due to temperature changes can best be avoided by not subjecting the aircraft to sudden changes in temperature providing bends in the tubing using short, straight sections of tubing between fixed parts of the structure of the aircraft None 59. The artificial production of a film of oxide on the surface of aluminum or any of its alloys is commonly called anodizing parco lubrizing alodizing None 60. Silica gel is used for moisture control during storage, when serviceable it is coloured blue pink white None 61. Which material is a hydraulic fluid hose made from? Teflon Rubber Butyl None 62. With respect to ferrous metals which of the following is true? Iron is a main element and most ferrous metal are magnetic Iron is not any element of ferrous metals Iron is a main element and ferrous metals are not magnetic None 63. A thrust bearing is designed so that it transmits axial loads, therefore limiting axial movement it transmits axial loads, therefore limiting radial movement it transmits radial loads, therefore limiting axial movement None 64. Titanium can be identified by placing it on a grinding wheel and looking for Yellow Sparks White Sparks Red Sparks None 65. A thread insert may be removed by a pre-wind insertion tool a hammer and punch a blade removal tool None 66. On a structural repair, what type of rivet would you use when the back side cannot be accessed? Blind rivet Pop rivet Hi-loc rivet None 67. An interconnect cable has what insulation? thinner than airframe cable thicker than airframe cable same thickness as airframe cable None 68. A BS rivet made from L36 would be what colour and marking? Green anodic with an 'X' Natural anodic with no marking Black anodic with an 'A' None 69. When rotating a ball bearing by hand, a regular click indicates intergranular corrosion in the outer ring a cracked ring damage to the balls None 70. Titanium alloys are cheap to manufacture have a high strength to weight ratio are corrosion resistant but heavy None 71. Nickel coated cables temperature range is 150 to 200°C 200 to 250°C 100 to 150°C None 72. A washer having both twisted teeth and spring actions is AN935 split-ring lock washer AN936 shake-proof lock washer AN970 large-area flat washer None 1 out of 1
