MOCK EXAM: Aircraft Construction, Repair and Modification Welcome, You are about to take up the MOCK EXAM: Aircraft Construction, Repair and Modification. Please take note of the following before you take the assessment. This assessment is timed for 120 Mins and auto submit. Scores and correct answer will be displayed after taking up the assessment. You can only take the assessment twice so make sure you have a strong internet connection. All questions are required to have an answer. This assessment is composed of 30 items multiple choice type of question. Always remember: THINK, CHECK AND SUBMIT. If you have any concern, please feel free to contact us. E-mail Address: assessment@flightwingsaviation.com Facebook Page: www.facebook.com/flightwingsaviation GOODLUCK! Email Adress LMS USERNAME FULL NAME CLASS SECTION/SCHEDULE (FRI-AM, FRI-PM, SAT-AM, SAT-PM, SUN-AM, SUN-PM, ONLINE) 1. Who is responsible for making the entry in the maintenance records after an annual, 100 hour, or progressive inspection? A. The owner or operator of the aircraft.B. The person approving or disapproving for return to service.C. The designee or inspector representing the FAA Administrator. A B C 2. Which is an appliance major repair? a. Overhaul of a hydraulic pressure pump.b. Repairs to a propeller governor or its control.c. Troubleshooting and repairing broken circuits in landing light circuits. A B C 3. (1) In the corrosion process, it is the cathodic area of dissimilar cathodic material that corrodes. (2) In the Galvanic or Electro-Chemical Series for metals, the most anodic metals are those that will give up electrons most easily. Regarding above statements, a. Only (1) is trueb. Only (2) is truec. Both are true A B C 4. Galvanic corrosion is likely to be most rapid and severe when a. the surface area of the cathodic metal is smaller than the surface area of the anodic metal.b. the surface areas of the anodic and cathodic metals are approximately the same.c. the surface area of the anodic metal is smaller than the surface area of the cathodic metal. A B C 5. Which of the listed conditions is NOT one of the requirements for corrosion to occur? a. The presence of an electrolyte.b. Electrical contact between an anodic area and a cathodic area.c. The presence of a passive oxide film. A B C 6. The aluminum code number 1100 identifies what type of aluminum? a. Aluminum alloy containing 11 percent copper.b. 99 percent commercially pure aluminum.c. Aluminum alloy containing zinc. A B C 7. A bolt with a single raised dash on the head is classified as an a. AN corrosion-resistant steel bolt.b. NAS standard aircraft bolt.c. NAS close tolerance bolt. A B C 8. The core material of Alclad 2024-T4 is a. heat-treated aluminum alloy, and the surface material is commercially pure aluminum.b. commercially pure aluminum, and the surface material is heat-treated aluminum alloy.c. strain-hardened aluminum alloy, and the surface material is commercially pure aluminum. A B C 9. Which of the following materials maybe inspected using the magnetic particle inspection method? 1. Magnesium alloys. 2. Aluminum alloys. 3. Iron alloys. 4. Copper alloys. 5. Zinc alloys. a. 1,2,3b. 1,2,4,5c. 3 A B C 10. What type of corrosion attacks grain boundaries of aluminum alloys which are improperly or inadequately heat treated? a. Filiform.b. Intergranular.c. Fretting. A B C 11. Structural members designed to support loadings applied perpendicular to their axes. They are long, straight bars having a constant cross-sectional area. A. ShaftB. PlatesC. BeamsD. Bulkheads A B C D 12. A simple beam 10 m long carries a concentrated load of 200KN at the midspan. What is the maximum moment on the beam? A. 500KN-mB. 250KN-mC. 400KN-mD. 100KN-m A B C D 13. It is a structure composed of slender members joined together at their end points, in which the members are subjected to only axial loads. A. Beam StructuresB. Monocoque StructuresC. Semi-monocoque StructuresD. Truss Structures A B C D 14. The general rule for finding the rivet diameter is a. three times the thickness of the materials to be joined.b. two times the rivet length.c. three times the thickness of the thickest sheet. A B C D 15. To obtain useful weight data for purposes of determining the CG, it is necessary that an aircraft be weighed a. in a level flight altitude.b. with all items of useful load installed.c. with no more than minimum fuel (1/12 – gallon per METO horsepower) in fuel tanks. A B C D 16. A measure of the resistance of a material to change of volume without change of shape or form A. Young’s modulusB. Bulk modulusC. Modulus of rigidityD. Shear modulus A B C D 17. What is the stress in a thin-walled spherical shell of diameter, D, and a wall thickness, t, when subjected to internal pressure, p,? A. S = ρD/4tB. S = D/ρtC. S = 4D/ρtD. S = ρD/t A B C D 18. What is the modulus of elasticity if the stress is 44,000psi and unit strain of 0.0015? A. 42.300 x 106B. 41.202 x 106C. 41.905 x 106D. 43.101 x 106 A B C D 19. A steel wire is 6 m long hanging vertically supports a load of 2000 N. Neglecting the weight of the wire, determine the required diameter if the stress is not to exceed 140 MPa and the total elongation is not to exceed 4 mm. E = 200,000 MPa A. 4.4 mmB. 3.4 mmC. 4.26 mmD. 5.4 mm A B C D 20. A. F = ⟨173.2 N, 100 N⟩B. F = ⟨−173.2 N, −100 N⟩C. F = ⟨−273.2 N, −100 N⟩D. F = ⟨273.2 N, 100 N⟩ A B C D 21. The wire spool being lifted into the truck consists of 750 m of three strand medium voltage (5 kV) 1/0 AWG electrical power cable with a 195 amp capacity at 90°C, weighing 927 kg/km, on a 350 kg steel reel. How much weight is supported by the hook and high tension polymer lifting sling? a. W = 300 Nb. W = 3000 Nc. W = 10300 Nd. W = 1277 N A B C D 22. Which of the three loading systems shown are statically equivalent? a. (a) and (c) are statically equivalentb. (a) and (b) are statically equivalentc. (a) is statically equivalentd. (a) and (c) are statically not equivalent A B C D 23. An iron steam pipe is 200 ft long at 0°C. What will its increase in length when heated to 100°C? Coefficient of linear expansion is 10 x 10^-6 ft/°C. a. 0.18 ftb. 0.12 ftc. 0.28 ftd. 0.20 ft A B C D 24. A simply supported beam 10 m long carries a uniformly distributed load of 20 kN/m. What is the value of the maximum shear of the beam due to this load? a. 250 kNb. 100 kNc. 1000 kNd. 500 kN A B C D 25. A simply supported beam, 10 m long carries a uniformly distributed load of 20 kN/m. What is the value of the maximum moment of the beam due to this load? a. 10,000 kN-mb. 5,000 kN-mc. 2,000 kN-md. 250 kN-m A B C D 26. A cylindrical tank with 10 inches inside diameter contains oxygen gas at 2,500 psi. Calculate the required thickness in mm under a stress of 28,000 psi. a. 11.44 mmb. 11.34 mmc. 10.60 mmd. 10.30 mm A B C D 27. The stress in a 90-cm diameter pipe having a wall thickness of 9.5 cm and under a static head of 70 m of water is a. 325 kPab. 32.5 kPac. 32.5 MPad. 3.25 Mpa A B C D 28. A water reservoir of 24 m high and 12 m diameter is to be completely filled with water. Find the minimum thickness of the reservoir plating if the stress is limited to 50 MPa. a. 24.5 mmb. 28 mmc. 21 mmd. 26 mm A B C D 29. Normally designed to provide restraint against rotation and all translations; therefore, reactive forces and moments are developed along the directions where movements are not permitted. a. Fixed supportb. Hinge supportc. Roller supportd. Wedge support A B C D 30. Members which are loaded so that they are compressed axially and therefore have developed within them compressive resistances or stresses. a. Beamsb. Columnsc. Shaftsd. Trusses A B C D 1 out of 3