Landing Gear Mid Block Test A [PDF]

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Landing gear Mid Term Test ‘A’ 1. To decrease the wind resistance of a fixed landing gear: a. Retractable landing gear. b. Wheel pants. c. Wheel mud guard. 2. During the landing load much of the energy of the impact is absorbed by forcing the fluid thru the restricted orifice: a. TRUE b. FALSE 3. When aircraft rebound much of the energy is absorbed by forcing the fluid thru the restricted orifice when landing gear: extended: a. Extended. b. Retracted. c. Piston up. 4. Rate of flow of the oleo fluid is control by the variable shape of the: a. Shock absorber orifice. b. Metering pin. c. Compress air. 5. When on static load the shock strut is bottom up (low strut tube exposures), it is cause by: a. Oil chamber leaking. b. Air chamber leaking. c. Oil seal leaking. 6. Rock the airplane (wing) for several time is to determine for: a. To check for air pressure.



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b. To check for any leaking. c. To determine the gear return to correct strut position. 7. It is important to keep the wheel properly aligned because to: a. To minimize tire wear. b. To correct aircraft maneuvering. c. To prevent aircraft taxiing vibration. 8. Toe is deviation of the wheel from: a. Lateral axis. b. Longitudinal axis. c. Vertical axis. 9. Limit the extension of the oleo strut and keep the wheel in alignment refer to: a. Torque link. b. Tapered shim. c. Centering cam. 10. For easy of landing gear retracting and lowering, the landing gear is pivot to: a. Aircraft structure. b. Trunnion. c. Upper side brace.



11. If the top of the wheel leans outward it is called: a. Positive chamber. b. Negative chamber. c. Toe out.



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12. Emergency retractable landing gear system is a means of lowering and retracting the landing gear if primary methods lowering gear fail: a. TRUE b. FALSE 13. When gear in the ‘up’ position and the throttles are at idle position the warning horn: a. Activated. b. Deactivated. c. Light ‘on’. 14. What are the advantages of having split wheel half? a. Easy to fit tubeless tires. b. Flexible tire can easily fit. c. Light weight. 15. Slight chipping of the rolling surface of a bearing: a. Rejected. b. Can be repaired. c. Clean, grease and keep in stored. 16. A bearing overheating can be indicated by: a. Distortion of the cage. b. Damaged to large end of bearing. c. Rust on rolling surface.



17. Type bearing that is mostly used in the modern wheel half assembly: a. Ball type bearing. b. Roller tapered type bearing.



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c. Pin type roller bearing. 18. In dual tire landing gear if one of the fusible plugs blow: a. Both tires should be scrapped. b. Only the defective tire is scrapped. c. Replace the fusible plugs not the tire. 19. What is used to pull the pressure plate back from the disk stack when brake is released? a. Anti rattle clips. b. Hydraulic return line. c. Return spring. 20. Black discoloration or corrosion on bearing races and roller is an indication of: a. Overheating. b. Water stain. c. Operating dry. 21. Debooster is located: a. Between brakes assemblies and shuttle valve. b. Between power brakes control and antiskid valve. c. Between antiskid valve and wheel cylinders.



22. The plunger spring in power brake control valves is aid for: a. For pilot artificial feel. b. Applying maximum brake. c. Release fluid to the system pressure manifold.



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23. Weariness of lining is measured between the housing and disk during brakes released: a. TRUE. b. FALSE. 24. Tire are classified according to its: a. Type, size and ply rating. b. Outside diameter, section width and rim diameter. c. Type, size, ply rating and whether tube or tubeless. 25. Difference between two dual tire pressure is not more than: a. 5 psi. b. 10 psi. c. 15 psi. 26. Apex strip is covered or hold by the: a. Flippers b. Ply turn up. c. Chafers.



27. Basic strength of the tire is depending on its: a. The bead. b. Carcass. c. The tread. 28. Ply rating on the tire indicate the number of the plies of the tire: a. TRUE b. FALSE.



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29. Wear on the shoulder rib is more than those in center is caused by: a. Under inflation. b. Over inflation. c. Correct inflation. 30. Right / best type tire inflation gauge used to check tire inflation is: a. Stem type indicator. b. Pen type indicator. c. Dial type indicator 31. All new tire and retreaded tire should be stored in a: a. Cool, dry area with bright sunlight. b. Cool, dry area with bright fluorescent light. c. Cool and dry area. 32. Whenever possible the tires should be stored: a. Vertically in racks. b. Horizontally in rack. c. Both vertically and horizontally. 33. Hydroplaning is minimized by: a. Proper design and placement / depth of groove in the tread. b. Tire section width and the outside diameter. c. Tire section width and rim diameter. 34. The proper inflation of tire are specified in the: a. Type certificate data sheets. b. Aircraft service manual. c. Aircraft overhaul manual.



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35. Most popular tire tread pattern found on aircraft today is: a. Plain or smooth tread. b. All weather tread. c. Rib treads. 36. The anti skid will activate when aircraft speed is more than: a. 15 mph. b. 20 mph. c. 25 mph. 37. What is used to maintain a constant clearance between the lining and disk when brake is released? a. Anti rattle clip. b. Return spring. c. Automatic adjuster.



38. What type of landing gear tendency to cause airplane to ground loop? a. Tricycle landing gear. b. Convectional landing gear. c. Tandem landing gear. 39. To get true position of alignment of the wheel: a. Rock the aircraft up and down. b. Apply grease between pair of aluminum plates. c. Rock the aircraft aft and forth.



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40. Side brace is to stabilize the landing gear assembly: a. Laterally. b. Longitudinally. c. Vertically. 41. The beads are made of bundles of high strength: a. Stainless steel. b. Tempered steel. c. Carbon steel. 42. The number 30.0 X 11.50 X 14.5 prints on the tire show the tire: a. Section width, rim and outside diameter. b. Rim, section width and outside diameter. c. Outside diameter, section width and rim. 43. What provides good adhesion between tread and the carcass? a. Undertread. b. Plies. c. Tread reinforcement. 44. All new nylons tire that are initially inflated should not to be install on aircraft before: a. 8 to 12 hours. b. 12 to 24 hours c. 24 to 36 hours. 45. Aircraft fit Castering nose wheel the steering is done by: a. Direct connection between the rudder pedals and nose gear. b. A hydraulic actuator that control by rudder pedals. c. Differential braking.



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46. Wheel bolt inspection, to check for crack it can done by using: a. Liquid penetrant inspection. b. Ultrasonic sound methods. c. Magnetic particle inspection. 47. What light indicating the gear is up and locked? a. Green light. b. Red light. c. No light. 48. What preventing the retraction of landing gear while aircraft is on ground? a. Pressure switch. b. Down-lock switch. c. Squat switch.



49. On oleo-type shock absorber, toe in / toe out can be done by: a. Adding or remove washers from between torque link. b. Adding or remove tapered shims between axle and gear leg. c. Adding or remove tapered shims between axle and brake assemblies. 50. Type of shimmy damper used on large aircraft: a. Piston type. b. Steer type. c. Vane type.



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