Aircraft Construction Mock Exam - Holy Angel University PDF

HOLY ANGEL UNIVERSITY College of Engineering and Architecture Aeronautical Engineering Department Aircraft Construction, Repair and Modification Mock Exami...

HOLY ANGEL UNIVERSITY College of Engineering and Architecture Aeronautical Engineering Department Aircraft Construction, Repair and Modification Mock Examination Directions: In the Answer Sheet provided, shade the box of the letter that corresponds to your answers. Pencil should be used in marking your answers. Careless marking of your answer sheet may lower the scores you earn on this test. You will have two (2) hours for this test. Work as rapidly and as accurately as you can. If you are not sure of an answer, mark the choice which is your best guess. Only one answer should be marked for each problem. Should a mistake be made, merely erase the wrong box and mark the correct one. 1. What is the angle that a flat sheet of metal goes through when bending it to a 15 θ closed angle? a. 165θ b. 105θ c. 15θ d. 195θ 2. What is the color of corrosion on copper tubing? a. Gold b. Green c. Yellow d. Black 3. Magnesium sheets or forgings should be cleaned with: a. A caustic solution b. A hog-bristle brush c. Alodine d. Low carbon emery wheel 4. A “scissors” attachment is used on some shock struts to: a. Absorb torque loads b. Help take up landing shock c. Prevent rebound d. Assist in lowering the strut 5. Alodizing is a simple chemical treatment offer all aluminum alloys to increase their corrosion resistance. After this treatment and after thorough rinsing, alodine is applied by: a. Dipping b. Spraying c. Brushing d. None of the above 6. A deep internal crack in a structural steel member is detected by: a. Fluorescent penetrant method b. X-ray or ultrasonic process c. Dye-penetrant d. Magnetic method 7. It is the time in hours after thawing that is required for the sealant to cure firmly enough to be handled without damage or deformation. a. Squeeze-out life b. Tack-free c. Cure time d. Application time 8. The regulations that govern aircraft certification are: a. FAR Part 21, FAR Part 23, and FAR Part b. FAR Part 43, FAR Part 45 and FAR Part 25 39 c. FAR Part 47, FAR Part 91, FAR Part 43 d. All of the above 9. FAR Part 43 governs about.. a. Maintenance, Preventive Maintenance, b. Airworthiness Standards; Transport Rebuilding and Alteration Category Airplanes c. Airworthiness Standards: Normal, Utility, d. General Operating and Flight Rules Acrobatic and Commuter Category 10. FAR Part 25 governs about... a. Airworthiness Standards: Transport b. Maintenance, Preventive Maintenance, Category Airplanes Rebuilding and Alteration c. Airworthiness Directives d. General Operating and Flight Rules 11. It is one which, if improperly done, might appreciably affect the weight, balance, structural strength, performance, power plant operation, flight characteristics, or other qualities affecting airworthiness; or one which is not done according to accepted practices or cannot be done by elementary operations. a. Major repair b. Minor repair c. Preventive maintenance d. Minor alteration 12. An aircraft was not approved for return to service after an annual inspection and the owner wanted to fly the aircraft to another maintenance base. Which statement is correct? a. The owner must obtain a special flight b. The aircraft becomes a restricted permit. category type until it is approved for return to service. c. The aircraft may be flown without d. The owner should obtain a special flight restriction up to 10 hours to reach another permit. maintenance base. 13. Which maintenance action is an airframe major repair? a. Changes to the wing or to fixed or b. Rewinding the field coil of an electical movable control surfaces which affect accessory flutter and vibration characteristics c. The repair of portions of skin sheets by d. Answer a and b are correct making additional seams 14. What is the meaning by which the FAA notifies aircraft owners and other interested persons of unsafe conditions and prescribes the condition under which the product may continue to be operated? a. Airworthiness directives b. Airworthiness alerts c. Aviation safety data d. Airworthiness alerts and aviation safety data 15. If work performed on an aircraft has been done satisfactorily, the signature of an authorized person on the maintenance records for maintenance or alterations performed constitures. a. Approval of the aircraft for return to b. Approval for return to service only for the service work performed. c. Only verification that the maintenance or d. Answer a and c are correct alterations were performed referencing maintenance data 16. The angle of incidence of an airplane at rest a. Affects the dihedral of the wings in flight b. Is the same as the angle between the relative wind and the chord of the wing c. Does not change when in flight d. Is set at maximum L/D 17. The primary alloying agent of 2021-T36 is indicated by the number a. 2 b. 20 c. 24 d. 36 18. An aircraft that is required by Section 91.409, to have a 100-hour inspection may be flown beyond the inspection a. if necessary to reach a place at which the b. if necessary to reach a place at which the inspection can be accomplished, but a inspection can be accomplished, but not special flight permit is necessary to exceed 10 flight hours without special permit c. if necessary to reach a place at which the d. if necessary to reach a place at which the inspection can be accomplished, but not inspection can be accomplished, but not to exceed 15 flight hours to exceed 10 flight hours 19. What is generally the best procedure to use when removing a solid shank rivet? a. Drill through the manufactured head and b. Drill to the base of the manufactured rivet shank with a shank size drill and remove head with a drill one size smaller than the the rivet with a punch. rivet shank and remove the rivet with a punch c. Drill through the manufactured head and d. Drill to the base of the manufactured rivet shank with a drill one size smaller than head with a drill one size larger than the the rivet and remove the rivet with a rivet shank and remove the rivet Punch with a punch 20. If a single-rotor helicopter is in forward horizontal flight, the angle of attack of the advancing blade is a. more than the retreating blade b. equal to the retreating blade c. less than the retreating blade d. always greater than the retreating blade 21. Vapor Phase Inhibitor (Dessicants) should be used. a. When re-protecting after corrosion b. When degreasing a component c. When painting an aircraft d. When preserving the engine 22. When using a color contrast Dye Penetrant kill, and a small crack is suspected in the material: a. Less developer should be used b. Less inhibitor should be used. c. A magnifying glass is recommended d. All of the above process can be performed 23. After the aircraft was removed from the weighing scales, a tare of +2kg was recorded. How will this affect the scale reading taken during aircraft weighing. a. Scale reading need to be adjusted by b. Scale reading need to be adjusted by - +2kg 2kg c. Scale reading need not be adjusted. d. Tare value has no effect on the weighing of the aircraft 24. Aircraft must be reweigh: a. After two years from manufacture only b. After two years from manufacture then at periods not exceeding five years c. At periods not exceeding five years d. When a modification kit has been installed on the aircraft. 25. When weighing an aircraft, the hydraulic system should be:  a. Empty b. Completely full c. Filled to “maximum level” mark d. All of the above 26. What is the purpose of the developer in a Dye Penetrant Inspection? a. It acts as a “blotter” to draw out the b. It is drawn to the crack by electrostatic penetrant from the crack attraction c. It seeps into the crack and makes it show d. It provides the florescent feature of the up penetrant 27. If a lock washer is not allowed to be used in securing a nut, then what is the recommended alternative? a. Plain Washer b. Plain Nut c. Increase the torque d. Check Nut 28. Variable load is weight of: a. Basic weight plus operating weight b. Crew, their baggage and equipment relevant to role c. Fuel, oil, and non-expendable equipment d. All of the above relevant to role 29. Corrosion removal of very mild from Aluminum Alloys can be performed using: a. Abrasive cleaner (does not contain b. Steel wire brush Chlorine) c. Steel Wool d. Any of the above 30. Increasing the weight of an aircraft a. Increase the Take-off roll b. Decreases the Stalling speed c. Decreases the glide range d. All of the above 31. Cabin upholstery materials installed in current standard category airplanes must a. Meet the requirements prescribed in Part b. Be at least flame resistant 43 c. Fireproof d. Fire retardant 32. When air samples contain carbon monoxide, portable carbon monoxide detectors containing yellow silica gel will turn which color? a. Blue b. Green c. Red d. Yellow 33. Built-in aircraft fire-extinguishing systems are ordinarily charged with a. sodium bicarbonate and nitrogen b. carbon dioxide and nitrogen c. halogenated hydrocarbons and nitrogen d. any inert gas such as carbon 34. The strength of a well-designed and properly prepared wood splice joint is provided by the a. Wood fibers b. Glue c. Plate d. Reinforcement 35. The I beam wooden spar is routed to a. Reduce weight b. Increase strength c. Obtain uniform strength d. Increase weight 36. The useful load of the aircraft consist of: a. Crew, usable fuel, passenger and cargo b. Crew, usable fuel, oil and fixed equipment c. Crew, total fuel weight, total oil weight, d. Crew, passenger, usable fuel, oil, cargo  passenger and cargo and fixed equipment 37. Yield strength, tensile strength and hardness of a metal increase with increasing percent cold work; ductility a. Increases b. Decreases c. Doesn’t change d. Changes tremendously 38. The bond where electrically charged ions are formed by the transference of valence electrons from one atom type to another. This type of bonding is found in ceramic materaials a. Ionic b. Covalent c. Dative d. Van der Waals 39. When an empty aircraft is weighed, the combined net weight at the main gears is 3,540 pounds with an arm of 195.5 inches. At the nose gear, the net weight is 2,322 pounds with an arm of 83.5 inches. The datum line is forward of the nose of the aircraft. What is the empty CG of the aircraft? a. 146.5 in b. 155.2 in c. 12.59 in d. 13.333 ft 40. Which heat-treating process of metal produces a hard, wear-resistant surface over a strong, tough core? a. Nitriding b. Annealing c. Case hardening d. Cold working 41. Normalizing is a process of heat treating? a. Iron based metal only b. Aluminum alloys only c. Both aluminum alloys and iron based d. Bronze metals 42. Which material cannot be heat treated repeatedly without harmful effects? a. Alclad alloys b. Unclad aluminum alloys c. 2021 aluminum alloys d. 6061-T9 stainless steel 43. The core material of Alclad 2024-T4 is a. Heat-treated aluminum alloy, and the b. Commercially pure aluminum, and the surface material is commercially pure surface material is heat-treated aluminum aluminum alloy c. Strain-hardened aluminum alloy, and the d. Clad has the same material as the surface material is commercially pure sandwich material aluminum 44. Why is steel tempered after being hardened? a. To relive its internal stress b. To lessen brittleness c. None of the above d. Both a and b 45. What is generally used in the construction of aircraft engine firewalls? a. Stainless steel b. Chrome-molybdenum alloy steel c. Magnesium-titanium alloy steel d. Aluminum alloy 46. The color of copper’s corrosion is? a. Red b. White c. Green d. Orange 47. Which of these materials is the most anodic? a. Cadmium b. Magnesium  c. Iron d. Zinc 48. A bolt with an X inside a triangle on the head is classified as an a. NAS Close Tolerance Bolt b. AN-Corrosion Resistant Bolt c. NAS Standard Aircraft Bolt d. Clevis Bolt 49. What type of corrosion may attack the grain boundaries of aluminum alloys when the heat treatment process has beenimproperly accomplished? a. Fretting b. Intergranular c. Fatigue d. Direct attack 50. How many magnesium engine parts be cleaned? a. Soak in caustic solution b. Use MEK c. Wash with commercial solvent and d. Clean using gas and kerosene then dry decarbonize 51. A destructive testing equipment that measures the area of the diamond indentation. a. Brinell b. Vickers c. Rockwell d. Barcoal 52. GTAW is also known as a. TIG b. Resistance welding c. MIG d. Spot welding 53. Flexible hose used in aircraft systems is classified in size according to the a. Inside diameter b. Outside diamtere c. Thickness d. Length 54. Select the solvent used to clean acrylics and rubber. a. Aliphatic Naphtha b. MEK c. Kerosene d. Cleaning Solvent 55. The measurement reading on the micrometer is a. 0.2758 b. 0.2702 c. 0.2792 d. 0.2783 56. What is the color of an AN steel flared-tube fitting? a. Black b. Red c. Blue d. Green 57. Aircraft bolts are usually manufactured with what class of fit a. Class 1 b. Class 2 c. Class 3 d. Class 4 58. What is the material layer used within the vacuum bag pressure system to absorb excess resin during curing called? a. Breather b. Bleeder c. Release d. Vaccum punch 59. Which tool can be used to determine piston pin out-of-round wear? a. Telescopic gauge b. Micrometer caliper c. Dial gauge d. Thickness gauge 60. Joggles in removed rivet shanks would indicate partial a. Shear failure b. Bearing failure c. Torsion failure d. Tension failure 61. A piece of sheet metal is bent to a certain radius. The curvature of the bend is referred to as the a. Bend line b. Bend radius c. Bend allowance d. Neutral line 62. What is the purpose of the wing main spar a. To withstand bending and torsional loads b. To withstand compressive and shear load c. To withstand compressive and shear d. To withstand bending and shear loads loads 63. The classification of high tensile strength fibreglass used in aircraft structures is a. G-glass b. S-Glass c. E-Glass d. A-Glass 64. A torsion box a. is structure within the fuselage to b. is the structure formed between the wing withstand compression, bending and spars, skin and ribs to resist bending and twisting loads twisting loads c. is a structure within the wing for housing d. is a structure within the wing for housing the fuel tanks, flight controls and landing the flight controls and landing gear gear 65. What should be done to prevent rapid deterioration when oil or grease come in contact with a tire? a. wipe the tire thoroughly with a dry cloth, b. wipe the tire with a dry cloth followed by a and then rinse with clean water washdown and rinse with soap and water c. wipe the tire thoroughly with a dry cloth d. wipe the tire with a cloth dampened with aromatic naphtha and then wipe dry with a clean cloth. 66. How many MS20470 AD-4-6 rivets will be required to attach a 10 x 5 inch plate, using a single row of rivets, minimum edgedistance, and 4D spacing? a. 54 in b. 56 mm c. 1422.4 mm d. 58 in 67. When inspecting a butt welded joint by visual means a. look for evidence of excessive heat in the b. the penetration should be 100 percent of form of a very high bead the thickness of the base metal c. the penetration should be 25 to 50 d. the penetration should be 30 to 50 percent of thethickness of the base metal percent of thethickness of the base metal 68. Liquid penetrant inspection methods may be used on which of the following?