AJ10203 (200Q) Question Refresher PDF

QUESTION REVIEW FROM SLIDE PRESENTATION (AJD10203) 200Q 1) In what fractional increments are the diameter and length of a standard bolt measured? A. 1/8 for the length and 1/16 for the diameter. B. 1/8 for the diameter and 1/16 for the length. C. 1/8 for the length and 1/32 for the diameter. ANSWE...

QUESTION REVIEW FROM SLIDE PRESENTATION (AJD10203) 200Q 1) In what fractional increments are the diameter and length of a standard bolt measured? A. 1/8 for the length and 1/16 for the diameter. B. 1/8 for the diameter and 1/16 for the length. C. 1/8 for the length and 1/32 for the diameter. ANSWER: A 2) Excellent electrical and thermal conductivity, primary metal used for electrical wiring. This is refer to A. Magnesium alloy. B. Copper alloy. C. Aluminum alloy. ANSWER: B 3) Effectively seal in both directions to prevent both internal and external leakage. This statement is refer to A. O Ring. B. V Ring. C. U Ring. ANSWER: A 4) How much slack must be left in a flexible hose during installation? A. 5% to 8% of total hose length for freedom of movement under pressure. B. 3% to 6% subjected to twisting. C. 10% to 12% relatively straight installation of the hose. ANSWER: A 5) What is idler gear? A. The gear which become planetary. B. A gear wheel that is inserted between two or more other gear wheels to transfer motion without change of direction or gear ratio. C. The gear that receives motion from a machine and often turns tools or components. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 6) What is the simplest method to detect corrosion? A. Dye penetrant inspection. B. Visual inspection. C. Ultrasonic inspection. ANSWER: B 7) What is tensile strength? A. Resistance to compression. B. Ability to withstand tension. C. Resistance to electrical conductivity. ANSWER: B 8) Which property measures a material’s resistance to cutting or abrasion? A. Ductility. B. Hardness. C. Elasticity. ANSWER: B. 9) What property describes a material’s ability to be shaped without breaking? A. Malleability. B. Toughness. C. Fusibility. ANSWER: A 10) What is the opposite of ductility? A. Toughness. B. Brittleness. C. Elasticity. Answer: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 11) Which property of metal describes its ability to expand when heated? A. Conductivity. B. Elasticity. C. Thermal expansion. ANSWER: C 12) What is the indication of filiform corrosion? A. Threadlike or wormlike. B. Clumps. C. Rivet smoking. ANSWER: A 13) The two parts sealant are identified as A. Base and accelerator. B. Thixotropic agents and resin. C. Acrylic and cellulose acetate. ANSWER: A 14) Below are the advantages of titanium alloy EXCEPT; A. Have excellent corrosion resistant. B. Suitable working characteristic for use in aircraft structure. C. Very high strength and can withstand high temperature. ANSWER: B 15) What is FLANK of screw thread? A. Distance between crest to crest. B. The straight edge which joins the crest and roots. C. Distance travelled for one revolution of the screw thread. ANSWER: B 16) What is laminated wood? A. Composed of a number of solid woods bonded together with the grains running in the same directions. B. Thin layers glued together and the grain of each layer crosses others the angle of 45 or 90 degrees. C. Softwood and hardwood. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 17) What is annealing used for in metals? A. To harden the metal. B. To reduce internal stress and soften the metal. C To improve thermal expansion. ANSWER: B 18) Which fiber provides excellent resistance to high temperatures in composite materials? A. Kevlar. B. Ceramic fiber. C. Carbon fiber. ANSWER: B 19) What is the key property of Kevlar fiber in composite applications? A. High thermal conductivity. B. High impact resistance. C. Corrosion resistance. ANSWER: B 20) What is the primary purpose of hot-working metal? A. To decrease malleability. B. To soften metals for shaping. C. To improve corrosion resistance. ANSWER: B 21) What is the purpose of the ‘lay line’ drawn on the outside of flexible hose during pipeline installation? A. The lay line shows if a hose is twisted when it is installed. B. The lay line indicate that the hose cannot be bent when installed. C. The lay line shows the direction of the hose to be installed. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 22) A swaged terminal can be checked for proper swaging using a __________. A. Tension meter gauge. B. Go/No Go gauge. C. Flux gauge. ANSWER: B 23) Anodizing protects alloy metal from corrosion and does what else? A. Makes a good surface for paint to adhere to. B. Makes the surface alkaline. C. Seals the surface from moisture. ANSWER: A 24) What does the temper designation “T6” represent in aluminum alloys? A. Solution heat-treated and artificially aged. B. Strain-hardened only. C. Naturally aged at room temperature. ANSWER: A 25) What is the primary purpose of precipitation heat treatment in aluminum alloys? A. To increase yield strength. B. To improve machinability. C. To enhance corrosion resistance. ANSWER: A 26) What is the primary advantage of honeycomb structures in aircraft applications? A. High electrical conductivity. B. High strength-to-weight ratio. C. High thermal conductivity. ANSWER : B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 27) The most widely used cable 7 x 19 is available in sizes from 1/8 inches up. 7 x 19 indicated that A. Individual wires wound in 7 strands, each strand having 19 wires. B. Individual wires wound in 19 strands, each strand having 7 wires. C. Individual wires wound in 9 strands, each strand having 19 wires. ANSWER: A 28) Which statement below is NOT regarding the aircraft cleaning preparation? A. Cover plug opening such as pitot and static ports. B. Do the water break test. C. Chock the aircraft. ANSWER: B 29) To protect from corrosion due to high temperature operation, plain engine nut is painted with A. Thermosetting resin. B. One part sealant. C. Black rustproof finish. ANSWER: C 30) Never wipe dry the passenger window because it will create _________________. A. tensile stress and cause crack. B. static electricity and attract more dust. C. microbes and can form scum. ANSWER: B 31) Kevlar fiber is yellow in colour and A. designed for use in high-temperature applications. B. extremely light weight, strong and tough. C. has great impact resistance. ANSWER: C 32) Metal self-locking nut A. At any temperature. B. Operating temperature below 250 degrees F. C. Operating temperature above 250 degrees F. ANSWER: C Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 33) Which statement below is FALSE regarding spring? A. Heavier wire, stronger spring. B. Smaller coil, stronger spring. C. Bigger coil, stronger spring. ANSWER: C 34) Aircraft bolts with double dash marked on the bolt head are: A. Standard steel bolt. B. Close tolerance bolts. C. Aluminum alloy bolts. ANSWER: C 35) How to do the corrosion inspection to the aircraft fuel tank? A. Visual inspection. B. Eddy current inspection. C. X-Ray. ANSWER: C 36) Check nut: A. Designed for used on an engine. B. Second nut that is tighten against the primary nut so it cannot turn off. C. Used when it is necessary to remove a part frequently without the use of tool. ANSWER: B 37) What type of aluminum alloy is used in rivets for aircraft structures due to its high strength? A. 5052. B. 7075. C. 2024. ANSWER: C 38) What is the primary purpose of annealing in ferrous metals? A. Increase hardness. B. Reduce internal stresses and soften the metal. C. Enhance corrosion resistance. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 39) What is “natural aging” in the context of aluminum heat treatment? A. Cooling at high temperatures. B. Strengthening at room temperature over time. C. Weakening over time due to corrosion. Answer: B 40) What is a primary benefit of using carbon fiber in aircraft structures? A. High impact resistance. B. High strength-to-weight ratio. C. Low cost. ANSWER: B 41) What is the process to produce aluminum from bauxite? A. ALCLAD. B. Electrolytic. C. Solution heat treatment. ANSWER: B 42) Which process is used to make seamless tubing from metal rods? A. Forging. B. Cold-drawing. C. Extrusion. ANSWER: B 43) What is the purpose of drop forging in metalworking? A. To create intricate shapes through repeated hammering. B. To soften metals for machining. C. To reduce internal stresses in metal parts. ANSWER: A 41) What is the primary purpose of quenching in aluminum heat treatment? A. Increase ductility. B. Increase strength and hardness. C. Enhance corrosion resistance. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 42) Which heat treatment process allows metals to be reheated to accelerate their strengthening? A. Natural aging. B. Artificial aging. C. Annealing. ANSWER: B 43) Choose the INCORRECT answer. A. Class 4 is a loose fit. B. Class 5 is a tight fit. C. Class 2 is a free fit. ANSWER: A 44) The area that has stubborn exhaust stain will be cleaning with A. 1:2 mixture of emulsion, kerosene and water. B. 1:5 mixture of emulsion and water. C. 1:5 mixture of emulsion, Varsol and water. ANSWER: A 45) Flexible hose used in aircraft system is classified in size according to the: A. Outside diameter. B. Wall thickness. C. Inside diameter. ANSWER: C 46) Which of this material is the most anodic? A. Cadmium. B. Gold. C. Magnesium. ANSWER: C 47) Which property makes titanium alloys ideal for high-temperature applications? A. High strength and temperature resistance. B. Excellent corrosion resistance. C. Easy machinability. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 48) What is the key disadvantage of beryllium copper in aviation applications? A. High density. B. High cost. C. Poor machinability. ANSWER: B 49) Which composite fiber is designed for use in high-temperature environments like exhaust systems? A. Kevlar. B. Carbon fiber. C. Ceramic fiber. ANSWER: C 50) What is the primary advantage of honeycomb structures in aircraft composites? A. Improved ductility. B. Reduced production cost. C. High strength-to-weight ratio. ANSWER: C 51) The used of unapproved or ordinary commercial compounds can lead to A. Hydrogen embrittlement to the metal. B. Streaking. C. The metal to be rough and corrode. ANSWER: A 52) What type of load generally applied to Roller bearing? A. Radial load. B. Thrust load. C. Radial and thrust. ANSWER: B 53) The digit following the designation H1, H2 and H3 indicate the degree of strain hardening. For example Hx8 mean the degree of strain hardening are: A. Extra Hard. B. Half Hard. C. Full Hard. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 54) The purpose of case hardening is to A. Produce a hard case over a tough core. B. Introduce carbon into the steel. C. Reduce the carbon in the steel. ANSWER: A 55) Which alloying element in steel increases its wear resistance and corrosion resistance? A. Sulfur. B. Chromium. C. Manganese. ANSWER: B 56) What is the purpose of vanadium in steel alloys? A. Reduce brittleness. B. Enhance machinability. C. Improve toughness and ductility. ANSWER: C 57) The mercury usually comes from the instrument if spill and attack aluminum by a chemical reaction is also known as; A. Mercurization. B. Aluminazation. C. Amalgamation. ANSWER: C 58) What is Backlash? A. Inserted between two or more other gear wheels. B. Typically used in conveyor systems. C. Clearance between mating components. ANSWER: C Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 59) In what fractional increments are the diameter and length of a standard bolt measured? A. 1/8 for the length and 1/16 for the diameter. B. 1/8 for the diameter and 1/16 for the length. C. 1/8 for the length and 1/32 for the diameter. ANSWER: A 60) The ability of metal to be joined by heating and melting are called A. Brittleness. B. Fusibility. C. Ductility. ANSWER: B 61) What is the primary characteristic that distinguishes aluminum from steel in aircraft structures? A. Higher thermal conductivity. B. Magnetic properties. C. Lower density. ANSWER: C 62) Which method is commonly used to extract aluminum from its ore bauxite? A. Electroplating. B. Cryogenic process. C. Bayer process. ANSWER: C 63) What is the purpose of cladding in aluminum alloys used for aircraft? A. To improve electrical conductivity. B. To enhance corrosion resistance. C. To reduce weight. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 64) Which of the following is a non-heat-treatable aluminum alloy commonly used for corrosion resistance? A. 6061. B. 5052. C. 7075. ANSWER: B 65) What is the main advantage of composite materials in aircraft structures? A. They are easier to machine. B. They provide a higher strength-to-weight ratio. C. They are highly conductive. ANSWER: B 66) What is the primary cause of copper diffusion during solution heat treatment of clad aluminum sheets? A. Excessive pressure. B. Rapid quenching. C. Prolonged exposure to high temperatures. ANSWER: C 67) How much slack must be left in a flexible hose during installation? A. 10% to 12% relatively straight installation of the hose. B. 3% to 6% subjected to twisting. C. 5% to 8% of total hose length for freedom of movement under pressure. ANSWER: C 68) What is the main reason for applying step aging in the heat treatment of certain aluminum alloys? A. To reduce quenching time. B. To improve machinability. C. To control mechanical properties. ANSWER: C Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 69) Which composite material is known for its excellent heat resistance and is often used in high-performance aircraft parts? A) Acrylic. B) Epoxy reinforced with graphite. C) Nylon. Answer: B) Epoxy reinforced with graphite 70) What is the significance of the term "temper" in aluminum alloys? A) It indicates the alloy's conductivity. B) It refers to the hardness and strength achieved after heat treatment. C) It shows the melting point of the alloy. ANSWER: B 71) Which process is used to increase the hardness of metals through plastic deformation without heat? A. Annealing. B. Quenching. C. Cold working. ANSWER: C 72) Grip length is; A. The unthreaded section of the bolt. B. From the top to the end of the shank. C. The threaded section of the bolt. ANSWER: A 73) In what section states that the airframe and engine required to be cleaned before performing an annual or 100 hours inspection? A. Appendix B of FAR part 43. B. Appendix B of FAR part 65. C. Appendix D of FAR part 43. ANSWER: C Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 74) What is idler gear? A. The gear which become planetary. B. A gear wheel that is inserted between two or more other gear wheels to transfer motion without change of direction or gear ratio. C. The gear that receives motion from a machine and often turns tools or components. ANSWER: B 75) To neutralize nickel cadmium battery compartment is by using A. Alodine 1201. B. Bicarbonate soda. C. Boric acid. ANSWER: C 76) Low carbon steel has a carbon content of A. 0.1% - 0.3%. B. 0.5% - 1.05%. C. 0.03% - 0.8%. ANSWER: A 77) During a Brinell Hardness test, what dimension is measured? A. The depth of the indent. B. The diameter of the indent. C. The diameter and depth of the indent. ANSWER: B 78) Choose the correct answer. A. Internal wrenching bolts are used primarily in areas that are subjected to high tensile load. B. AN bolt can replace the wrenching bolts. C. Internal wrenching bolts are used to mount engines. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 79) Most common alloying element found in steel is A. Copper. B. Carbon. C. Silver. ANSWER: B 80) What is the purpose of the ‘lay line’ drawn on the outside of flexible hose during pipeline installation? A. The lay line shows the direction of the hose to be installed. B. The lay line indicate that the hose cannot be bent when installed. C. The lay line shows if a hose is twisted when it is installed. ANSWER: C 81) Which material property allows magnesium alloys to be used in aircraft despite their susceptibility to corrosion? A) Low density. B) High ductility. C) High tensile strength. ANSWER: A 82) What is the primary advantage of using titanium in aerospace applications? A. Low cost compared to other metals. B. Ability to withstand high temperatures and resist corrosion.. C. Ease of forming and bending. ANSWER: B 83) Which alloy is known for being heat-treatable and offering good strength combined with excellent corrosion resistance in marine environments? A) 1100. B) 2024. C) 6061. ANSWER: C Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 84) Which of the following is a common non-destructive testing method used to inspect aircraft materials for cracks or internal defects? A. Annealing. B. X-ray inspection. C. Quenching. ANSWER: B 85) What is the primary purpose of adding manganese to aluminum alloys like 3003? A. To improve machinability. B. To increase the strength of the alloy. C. To make the alloy more ductile. ANSWER: B 86) To provide an easy and quit removal access for panel, inspection door and cowling. This is referring to ______________. A. Acres sleeve. B. Helicoil insert. C. Dzus fastener. ANSWER: C 87) Galvanic action can be best prevented by; A. Application of a bitumastic tar base to material surface. B. Cleaning both surfaces with non-residual solvent. C. Placing a nonporous dielectric material between the surfaces. ANSWER: C 88) Washers are used to provide a bearing surface area for nut and A. Acts as a spacer or shim to obtain the proper grip length for the bolt and nut assembly. B. To secure the nut to the bolt. C. Prevent slippage during the tightening process of the nut. ANSWER: A 89) Shot-peen is a method to prevent stress corrosion to occur. The process of shot-peen is A. Soft and relieving internal stress of the metal surface. B. Relieving shear on the metal surface. C. Creating compressive stress on the metal surface. ANSWER: C Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 90) Choose the correct answer. A. AN175C-5 has a drilled shank. B. AN25-4A has an undrilled shank. C. AN77-7 made from aluminum alloy. ANSWER: B 91) Which of the listed below is not one of the requirements for electrochemical corrosion to occur? A. The present of electrolyte. B. The present of passive oxide film. C. Electrical contact between an anodic and cathodic area. ANSWER: B 92) A ‘check’ in a piece of wood is A. Crack between two annual rings. B. Radial cracks which cuts across the grain. C. Lengthwise separation of the wood. ANSWER: B 93) The construction of a flexible control cable is: A. 1 x 19. B. 7 x 7. C. 7 x 19. ANSWER: B 94) Which element is added to aluminum to significantly improve its fatigue resistance and tensile strength, commonly used in aircraft? A. Zinc. B. Magnesium. C. Copper. ANSWER: C 95) What is the benefit of solution heat treatment followed by rapid quenching in aluminum alloys? A. Increased malleability. B. Higher tensile strength. C. Better corrosion resistance. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 96) Which of the following aluminum alloy series is known for being non-heat-treatable but highly corrosion-resistant? A. 7000 series. B. 3000 series. C. 6000 series. ANSWER: B 97) Why is cold working often applied after solution heat treatment of aluminum alloys? A. To improve electrical conductivity. B. To increase the hardness and strength of the material. C. To enhance ductility. ANSWER: B 98) What is the purpose of over-aging in aluminum heat treatment? A. To increase the alloy’s hardness. B. To improve corrosion resistance. C. To reduce internal stresses. ANSWER: B 99) What is a significant advantage of using composite materials over metals in aircraft structures? A. Lower cost. B. Higher thermal conductivity. C. Higher strength-to-weight ratio. ANSWER: C 100) Which statement below is FALSE regarding spring? A. Bigger coil, stronger spring. B. Heavier wire, stronger spring. C. Smaller coil, stronger spring. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 101) Typically made to be used on clevis bolts that don’t have drilled shanks. This is refer to A. Shear self-locking nut. B. Anchor nut. C. Tinnerman nut. ANSWER: A 102) Pitting corrosion is the result of ; A. Two dissimilar metal contact to each other. B. Improper quenching two dissimilar metal contact to each other. C. Uniform surface corrosion left untreated. ANSWER: C 103) Type of cable fastener that allows cable tension to be adjusted by using; A. Turnbuckle. B. Swage terminal. C. Tensiometer. ANSWER: A 103) What is the quenching method for annealing heat treatment? A. Cool at room temperature. B. Water. C. Hot air/Furnace cool. ANSWER: C 104) Hole repair can be accomplish by using; A. Helicoil. B. Go no go gauge. C. Quarter turn fastener. ANSWER: A 105) What is the hardness designation for H38 A. Strain hardened and stabilized & Full-hard. B. Strain hardened only & Three-quarter hard. C. Strain hardened and partially annealed & Half-hard. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 106) The white powder which forms on the surface of aluminum alloy when it corrodes is the indication of A. Surface corrosion. B. Galvanic corrosion. C. Oxidation. ANSWER: A 107) Flexible hose used in aircraft system is classified in size according to the; A. Outside diameter. B. Wall thickness. C. Inside diameter. ANSWER: C 108) In addition to prevent corrosion by its biodical action, an additive in fuel also serves as A. An anti-freeze to prevent water from freezing. B. To prevent the formation of scum. C. Both A and B are correct. ANSWER: C 109) Which of the following aluminum alloys is most commonly used for aircraft structural parts requiring high strength? A. 1100. B. 2024. C. 5052. ANSWER: B 110) What is the main characteristic of magnesium alloys that makes them difficult to work at room temperature? A. Low tensile strength. B. High thermal conductivity. C. Low ductility. ANSWER: C 111) Which process is used to improve the mechanical properties of aluminum after cold working? A. Annealing. B. Heat aging. C. Normalizing. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 112) Which aluminum alloy is known for its high fatigue strength and is commonly used in aircraft applications? A. 6061. B. 7075. C. 1100. ANSWER: B 113) What is the key reason for using titanium in aerospace applications? A) High malleability. B) High strength-to-weight ratio. C) Low production cost. ANSWER: B 114) In which process are aluminum alloys heated and slowly cooled to achieve maximum softness and ductility? A. Solution heat treatment. B. Annealing. C. Quenching. ANSWER: B 115) Choose the correct answer below. A. T10 – Solution heat-treated, strain hardened and then artificially aged. B. T5 - Annealed (cast product only). C. T3 – Solution heat-treated followed by strain hardening. ANSWER: C 116) Cadmium plating of surface treatment for steel is A. Sacrificial process. B. Electrolytic process. C. Both a and b are correct. ANSWER: C 117) What type of load generally applied to Roller bearing? A. Radial load. B. Thrust load. C. Radial and thrust. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 118) Below are the purpose of bearing EXCEPT? A. Reduce friction. B. Enhance speed and efficiency. C. Tension and compress movement. ANSWER: C 119) Of the listed materials listed the highest percentage of copper content is in: A. 7075. B. 2024. C. 5056. ANSWER: B 120) Which non-ferrous metal alloy is known for its high electrical conductivity and is often used for electrical wiring in aircraft? A. Aluminum. B. Copper. C. Magnesium. ANSWER: B 121) What is the effect of natural aging in aluminum alloys after solution heat treatment? A. Increased corrosion resistance. B. Increased strength over time. C. Reduced hardness. ANSWER: B 122) Which aluminum alloy is primarily used for fuel tanks and pipelines in aircraft due to its excellent corrosion resistance? A. 1100. B. 7075. C. 5052. ANSWER: C 123) What is the key feature of Monel metal, which makes it suitable for marine applications in aircraft? A. Low cost. B. High strength. C. Excellent corrosion resistance. ANSWER: C Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 124) Which material property of beryllium copper makes it suitable for use in precision bearings and spring washers? A. High thermal conductivity. B. High tensile strength. C. Low density. ANSWER: B 125) What is the main purpose of solution heat treatment in aluminum alloys? A. To increase hardness through rapid cooling. B. To soften the metal by slow cooling. C. To decrease malleability. ANSWER: A 126) What is the primary role of artificial aging in the heat treatment of aluminum alloys? A. To reduce internal stresses. B. To improve machinability. C. To increase strength and hardness. ANSWER: C 127) What is the main advantage of composite materials in aircraft structures? A. Lower cost. B. Higher density. C. Higher strength-to-weight ratio. ANSWER: C 128) Which statement of rigid fluid line below is correct? A. Used extensively on aircraft to connect stationery parts to moving parts. B. Known as hose. C. Used in stationary applications where long, relatively straight runs are possible. ANSWER: C 129) What type of seal that is one way seal? A. Gasket. B. O-Ring packing. C. V-Ring packing. ANSWER: C Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 130) The application of dipping steel in the molten zinc is known as A. Metal spraying. B. Cadmium plating. C. Galvanizing. ANSWER: C 131) What is Backlash? A. Inserted between two or more other gear wheels. B. Typically used in conveyor systems. C. Clearance between mating components. ANSWER: C 132) What is the function of leaf spring? A. It provides dampness and springing function for heavy vehicles. B. Also known as spiral torsion, clock springs or brush springs. C. It is also a form of helical spring. ANSWER: A 133) What is the purpose of using rivets made of 2024 or 7075 aluminum alloys in aircraft? A. To reduce the weight of the structure. B. To provide high strength for structural fastening. C. To improve corrosion resistance. ANSWER: B 134) What is the key characteristic of 6061 aluminum alloy that makes it versatile for use in various aircraft components? A) High malleability. B) Excellent corrosion resistance. C) High electrical conductivity. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 135) Which non-ferrous metal is widely used in aircraft for parts requiring good wear resistance and toughness, such as bushings and bearings? A. Copper. B. Brass. C. Beryllium copper. ANSWER: C 136) What is the primary reason for using titanium in aircraft parts exposed to high temperatures? A. High strength-to-weight ratio. B. Excellent electrical conductivity. C. Low cost. ANSWER: A 137) Which of the following aluminum alloys is typically used for aircraft fuselage skin due to its high strength? A. 1100. B. 2024. C. 7079. ANSWER: B 138) What is the primary advantage of using composite materials in aircraft construction? A. Lower cost. B. Higher density. C. Higher strength-to-weight ratio. ANSWER: C 139) Which alloy is commonly used for aircraft structural rivets due to its high strength? A. 1100. B. 2024. C. 5052. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 140) Which material is often used for parts in aircraft engines that must withstand both high temperatures and corrosion? A. Aluminum alloy. B. Copper alloy. C. Titanium alloy. ANSWER: C 141) What is the primary purpose of quenching in the heat treatment of aluminum alloys? A. Increase ductility. B. Increase hardness and strength. C. Reduce thermal expansion. ANSWER: B 142) What is the primary advantage of using foam-based cleaners on vertical surfaces? A. They provide longer dwell time and prevent dripping. B. They improve surface gloss. C. They are more cost-effective than liquid cleaners. ANSWER: A 143) What is the recommended procedure for cleaning de-icing boots? A. Wash with mild soap and water, then apply a protective conditioner. B. Rinse with high-pressure water. C. Immerse in solvent-based cleaners. ANSWER: A 144) Why should the interior of engine cowls be cleaned regularly? A. To enhance the engine’s aesthetic appearance. B. To remove grease and debris that could affect engine cooling. C. To improve access during maintenance. ANSWER: B 145) After cleaning an aircraft’s exhaust area, what should be inspected? A. The presence of streaks or residues. B. The condition of heat-resistant coatings and fasteners. C. The type of cleaning agent used. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 146) Why is it important to inspect control cables after cleaning? A. To verify cleanliness and check for signs of wear or corrosion. B. To confirm proper alignment of the cables. C. To enhance the gloss of the surrounding area. ANSWER: A 147) What is the purpose of using chemical-resistant footwear during cleaning? A. To enhance mobility in slippery conditions. B. To prevent cleaning agents from soaking through and causing skin irritation. C. To meet uniform safety standards. ANSWER: B 148) Why should personnel avoid overfilling spray bottles with cleaning agents? A. To reduce waste in case of spills. B. To ensure consistent spray pressure. C. To prevent accidental leakage or overflow during use. ANSWER: C 149) How should cleaning sponges used for acrylic windows be maintained? A. Rinse thoroughly and store in a sealed container. B. Dry completely to avoid mold growth. C. Wash with kerosene to remove contaminants. ANSWER: B 150) Why is it important to regularly replace worn cleaning tools? A. To improve cleaning efficiency and avoid damaging surfaces. B. To enhance tool durability. C. To ensure compatibility with cleaning agents. Answer: A 151) What is the benefit of using biodegradable degreasers in aircraft cleaning? A. They are more effective on stubborn grease. B. They reduce environmental impact and simplify disposal. C. They eliminate the need for water rinsing. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 152) How can aircraft operators reduce the environmental impact of exterior cleaning? A. Perform cleaning only during maintenance inspections. B. Use waterless cleaning systems and minimize chemical usage. C. Avoid cleaning in outdoor environments. ANSWER: B 152) Why should exterior surfaces be dried thoroughly after cleaning? A. To prevent water spots and streaks from forming. B. To reduce the weight of residual moisture. C. To prepare surfaces for lubrication. ANSWER: A 153) What is the purpose of applying a corrosion inhibitor after cleaning exposed metal surfaces? A. To simplify future cleaning tasks. B. To provide a protective barrier against environmental factors. C. To enhance the gloss of the surface. ANSWER: B 154) Why is it important to allow foam cleaners to dwell on soiled surfaces? A) To break down contaminants more effectively before rinsing. B) To enhance the shine of the cleaned area. C) To simplify drying processes. ANSWER: A 155) What is the proper method for cleaning tires during routine maintenance? A. Use mild soap and water with a soft brush. B. Apply kerosene to dissolve grease and grime. C. Rinse with high-pressure water only. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 156) What is the purpose of cleaning around the landing gear struts regularly? A. To enhance the aesthetic appearance of the gear. B. To remove contaminants that could degrade seals and cause leaks. C. To improve the gloss of the cleaned surfaces. ANSWER: B 157) How should navigation antennas be cleaned to ensure optimal functionality? A. Use a soft cloth and electronics-safe cleaning solution. B. Scrub with abrasive pads to remove stubborn dirt. C. Rinse with high-pressure water. ANSWER: A 158) After cleaning hydraulic reservoirs, what should be checked? A. The condition of seals and the absence of leaks. B. The alignment of hydraulic lines. C. The type of cleaning agent used. ANSWER: A 159) Why is it important to inspect engine inlets after cleaning? A. To ensure no residue is blocking airflow. B. To confirm alignment with the engine casing. C. To enhance the acoustic properties of the inlet. ANSWER: A 160) Why should ventilation be ensured when using solvent-based cleaning agents? A. To reduce the time required for drying. B. To prevent the accumulation of harmful fumes. C. To enhance the shine of cleaned surfaces. ANSWER: B 161) What should be done if a cleaning agent spills on clothing during cleaning tasks? A. Rinse the clothing immediately and remove it if necessary. B. Apply a neutralizing solution to the affected area. C. Continue cleaning until the task is complete. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 162) Why should brushes used for cleaning be checked regularly? A. To ensure bristles are intact and effective. B. To maintain their aesthetic appearance. C. To reduce wear on the surfaces being cleaned. ANSWER: A 163) How should spray nozzles be cleaned to maintain their effectiveness? A. Rinse with warm water to remove buildup. B. Scrub with abrasive pads. C. Discard and replace after each use. ANSWER: A 164) How can cleaning teams reduce chemical runoff during exterior cleaning? A. Use containment systems to collect and treat wastewater. B. Rinse surfaces with higher volumes of water. C. Limit cleaning to essential areas. ANSWER: A 165) Why is it essential to use eco-friendly cleaning agents near water sources? A. To comply with legal requirements for water protection. B. To enhance the appearance of the cleaned surface. C. To reduce water usage during rinsing. ANSWER: A 166) Why should rubber seals be treated with a protective conditioner after cleaning? A. To enhance their appearance. B. To maintain flexibility and prevent cracking. C. To simplify future inspections. ANSWER: B 167) What is the purpose of applying anti-static spray after cleaning cockpit displays? A) To improve visibility. B) To reduce dust accumulation and static electricity. C) To enhance the gloss of the screen. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 168) Why is it important to clean air conditioning vents during routine maintenance? A. To improve cabin air quality and system efficiency. B. To ensure compatibility with cleaning agents. C. To simplify cabin pressurization checks. ANSWER: A 169) How should grease be removed from aircraft door hinges? A) Apply a degreaser and scrub gently with a soft brush. B) Immerse the hinges in a solvent solution. C) Wipe with a dry cloth to avoid residue. ANSWER: A 170) Why should overhead compartments in passenger cabins be cleaned regularly? A) To enhance their aesthetic appearance. B) To remove dust and debris that could affect passenger items. C) To comply with airline maintenance guidelines. ANSWER: B 171) What is the recommended method for cleaning fuel vent outlets? A. Use a soft cloth with a mild cleaning solution. B. Scrub with abrasive pads to ensure thorough cleaning. C. Apply solvent-based cleaners and let dry naturally. ANSWER: A 172) Why should wingtip navigation lights be inspected after cleaning? A. To ensure they are properly aligned and free from residue. B. To check the brightness of the light. C. To verify the cleaning solution used. ANSWER: A 173) After cleaning the cockpit, what components should be inspected? A. The condition of the control surfaces. B. The cleanliness of instrument panels and switches. C. The gloss of the floor panels. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 174) What is the risk of using expired cleaning agents? A) Reduced cleaning efficiency and potential surface damage. B) Faster drying times. C) Incompatibility with cleaning tools. ANSWER: A 175) Why should a safety barrier be placed around the cleaning area? A. To protect personnel from exposure to cleaning agents. B. To prevent unauthorized access and ensure safety. C. To comply with aesthetic workplace standards. ANSWER: B 176) Why should cleaning tools used for the aircraft’s exterior not be used for the interior? A. To prevent contamination and protect delicate interior surfaces. B. To ensure compatibility with cleaning agents. C. To reduce overall cleaning costs. ANSWER: A 177) How should brushes with hardened bristles be maintained? A) Soak them in warm water to soften the bristles. B) Store them in a sealed container to retain flexibility. C) Use abrasive pads to reshape the bristles. ANSWER: A 178) How can water runoff from exterior cleaning be minimized? A. Use absorbent mats and reduce water pressure. B. Clean smaller areas at a time. C. Avoid using water during the cleaning process. ANSWER: A 179) Why is it important to use concentrated cleaning solutions responsibly? A. To ensure environmental compliance and minimize waste. B. To enhance the cleaning process. C. To increase their effectiveness on tough stains. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 180) Why is it necessary to check the operation of wipers after cleaning cockpit windows? A. To ensure the wipers are not obstructed by residue. B. To improve the gloss of the windows. C. To confirm the type of cleaning agent used. ANSWER: A 181) What is the purpose of inspecting fasteners and rivets after cleaning aircraft surfaces? A) To confirm they were not loosened during the cleaning process. B) To enhance their glossiness. C) To improve their aerodynamic profile. ANSWER: A 182) How should glass cockpit displays be cleaned to avoid damage? A) Use a microfiber cloth and an electronics-safe cleaner. B) Rinse with distilled water and let air dry. C) Use a damp cloth with kerosene. ANSWER: A 183) Why is it important to clean aircraft wheels after every flight? A. To prevent dirt buildup that could affect braking performance. B. To enhance the gloss of the wheels. C. To inspect for tire pressure changes. ANSWER: A 184) Why should the leading-edge slats be cleaned with special care? A. To remove dirt and contaminants that affect aerodynamic efficiency. B. To enhance the visual appearance of the slats. C. To simplify the application of de-icing fluids. ANSWER: A 185) What is the primary concern when cleaning static discharge wicks? A. Avoiding damage that may impair their functionality. B. Ensuring they are free of cleaning residues. C. Increasing their glossiness. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 186) After cleaning the tail section, what should be inspected? A. The alignment of control surfaces. B. The condition of fasteners and absence of cleaning agent residues. C. The gloss of the tail surfaces. ANSWER: B 187) Why is it essential to inspect pitot tubes after cleaning the aircraft exterior? A. To ensure they are free from obstructions caused by cleaning agents. B. To check their alignment with airflow. C. To verify their electrical connections. ANSWER: A 188) Why should all cleaning personnel be trained in handling hazardous materials? A. To improve their efficiency during cleaning. B. To ensure safe handling and disposal of harmful agents. C. To reduce the cost of cleaning materials. ANSWER: B 189) What precaution should be taken when cleaning near fuel tanks? A) Apply high-pressure water to remove contaminants. B) Increase water usage to dilute any spills. C) Use non-flammable cleaning agents and avoid creating sparks. ANSWER: C 190) How should vacuum cleaners used for interior cleaning be maintained? A. Replace their hoses after every use. B. Clean filters regularly to ensure efficient operation. C. Discard and replace after six months. ANSWER: B 191) Why should cleaning cloths used on transparent surfaces be lint-free? A. To prevent streaking and maintain clarity. B. To reduce the drying time of cleaning agents. C. To simplify post-cleaning inspection. ANSWER: A Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 192) What is the best method to clean oil and grease from aircraft engine mounts? A. Apply a degreaser, let it soak, and then scrub with a soft brush. B. Use high-pressure water with soap. C. Immerse in solvent-based solutions. ANSWER: A 193) Why must drain holes in control surfaces be inspected after cleaning? A. To ensure no cleaning agent is trapped inside. B. To verify that water has been removed to prevent corrosion. C. All of the above. ANSWER: C 194) What should be inspected in areas with anti-icing systems after cleaning? A. The integrity of seals and hoses. B. The presence of residual cleaning agents. C. The type of cleaning tools used. ANSWER: A 195) Why is it important to inspect wheel hubs after cleaning the landing gear? A) To reduce drying time. B) To verify the alignment of the wheels. C) To ensure that no cleaning solution has penetrated the wheel bearings. ANSWER: C 196) Why should cleaning agents be stored away from heat sources? A. To prevent evaporation and maintain effectiveness. B. To reduce the risk of accidental ignition. C. To ensure compliance with manufacturer recommendations. ANSWER: B 197) What precaution should be taken when cleaning sharp edges or corners on an aircraft? A) Use additional cleaning agents to remove contaminants. B) Wear protective gloves to avoid injury. C) Apply high-pressure water for a thorough clean. ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 198) What is the primary purpose of a locknut with a nylon insert? A) To improve preload consistency. B) To resist loosening caused by vibration. C) To distribute load evenly. ANSWER: B 199) Why are tab washers used in critical bolted assemblies? A. To provide a secondary locking mechanism by bending the tab B. To reduce installation time C. To act as a spacer ANSWER: A 200) What is the purpose of using a pneumatic rivet gun instead of a manual hammer? A) To reduce material costs B) To ensure consistent force application and avoid damaging the rivet C) To simplify rivet removal ANSWER: B Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 ESSAY REVIEW (Q1) What is the properties and application of copper alloy? What is contain inside brass, bronze and beryllium? Excellent electrical and thermal conductivity, primary used for electrical wiring Brass is a copper alloy containing zinc Bronze is a copper alloy containing tin Beryllium copper consists of copper, beryllium and nickel (Q2) Describe each bolt code below: a) AN3DD5A AN - Airforce Navy 3 - 3/16” diameter DD - Aluminum Alloy 5 - 5/8” length A - Undrilled shank b) AN 79CH10 AN - Airforce Navy 79 - 9/16” diameter C - Corrosion Resistance Steel (CRS) H - Drilled Head 10 - 1” length (Q3) Dye Penetrant Inspection a) List down Dye Penetrant Procedure (6 Steps) Pre cleaning Apply penetrant - 10 minutes Intermediate Cleaning Apply developer Inspection Post cleaning b) Give 4 disadvantages of Dye Penetrant Inspection Small part only Can only detects on surface flaws Surface must be super clean before apply the dye Only nonporous surface can be inspected Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 (Q4) Heat Treatment Purpose Heat Heat Soak Quenching Solution Heat Harder & Stronger Put inside molten Water Treatment sodium/potassium nitrate Heat distribute evenly Precipitation Heat Increase Yield Furnace heat inside the metal Natural Aging Treatment Strength structure Annealing Soften the metal and Furnace heat Furnace cool/Hot Air decreases internal stress. Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024 (Q5) Describe each bolt code below: a) AN5C13A AN - Airforce Navy 5 - 5/16” diameter C - Corrosion Resistance Steel (CRS) 13 - 1 3/8” length A - Undrilled shank b) AN 173DDH4 AN - Airforce Navy 173 - 3/16” diameter DD - Aluminum Alloy H - Drilled Head 4 - 1/2” length (Q6) CLEANING & CORROSION CONTROL a) Describe step by step how to clean NiCad battery compartment. Step 1 - Flush thoroughly with clean water to remove dirt Step 2 - Chemically neutralize with Boric Acid or vinegar and water Step 3 - Wash with mild soap and water using clean sponge or rag Step 4 - Rinse thoroughly with water. Step 5 - Dry the battery compartment. b) Explain Intergranular Corrosion Attack along the grain boundaries of a material. It occurs when the metal is not properly heat treated. Spot welds and seam welds can also leads to this type of corrosion. Hard to detect because it is inside the metal. Ultrasonic, eddy current or X-ray is needed for this corrosion. Subject: Aircraft Material & Hardware (AJD 10203) Slide vs Question review_Q200P1 06/12/2024