Aircraft Volume 3 Unit Review Exercises

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Catherine Halcomb
Catherine Halcomb
Community Contributor
Quizzes Created: 1443 | Total Attempts: 6,686,485
| Attempts: 82
SettingsSettings
Please wait...
  • 1/100 Questions

    48. (432) Which maintenance stand is not adjustable?

    • B–1.
    • B–2.
    • B–5.
    • C–1.
Please wait...
About This Quiz

Aircraft Volume 3 Unit Review Exercises - Quiz

Quiz Preview

  • 2. 

    56. (435) When filling out an AFTO Form 1492, Warning Tag, who is required to sign the signature block?

    • Any SSgt.

    • RED X qualified supervisor.

    • Tool room personnel.

    • Most qualified 5-level.

    Correct Answer
    A. RED X qualified supervisor.
    Explanation
    The correct answer is "RED X qualified supervisor." When filling out an AFTO Form 1492, the signature block must be signed by a RED X qualified supervisor. This indicates that the supervisor has the necessary knowledge and expertise to properly assess and address any potential safety hazards or issues identified on the form. Other personnel, such as SSgts, tool room personnel, or the most qualified 5-level, may not have the required qualifications to sign the signature block.

    Rate this question:

  • 3. 

    1. (401) What type of fuselage construction uses a fabric or thin metal covering, and may be found on small, lightweight aircraft?

    • Truss.

    • Cantilever.

    • Monocoque.

    • Semimonocoque

    Correct Answer
    A. Truss.
    Explanation
    The correct answer is truss because truss fuselage construction uses a fabric or thin metal covering and is commonly found on small, lightweight aircraft. Truss construction consists of a framework of interconnected beams or rods that provide strength and support to the fuselage. This type of construction is lightweight and cost-effective, making it suitable for smaller aircraft where weight and cost considerations are important. Cantilever, monocoque, and semimonocoque are other types of fuselage construction methods that are not characterized by a fabric or thin metal covering.

    Rate this question:

  • 4. 

    5. (403) Low observable (LO) technology allows modern aircraft to avoid

    • Enemy aircraft.

    • Enemy radar.

    • Friendly forces.

    • Night flying incidents.

    Correct Answer
    A. Enemy radar.
    Explanation
    Low observable (LO) technology refers to the design and construction techniques used to minimize an aircraft's radar signature, making it difficult for enemy radar systems to detect and track the aircraft. By reducing the radar signature, modern aircraft equipped with LO technology can avoid detection by enemy radar, increasing their chances of survival and mission success. This technology includes features such as stealth coatings, shape optimization, and radar-absorbent materials, all aimed at reducing the aircraft's radar cross-section and making it less visible to enemy radar systems. Therefore, the correct answer is enemy radar.

    Rate this question:

  • 5. 

    16. (410) What is the maximum number of widely-spaced bolts that may be safety-wired together using the double-twist method?

    • 2.

    • 3.

    • 4.

    • 5.

    Correct Answer
    A. 3.
    Explanation
    The correct answer is 3 because the double-twist method involves safety-wiring two bolts together by twisting the wire around them in opposite directions. This creates a secure connection between the bolts and prevents them from loosening. Since each pair of bolts requires one wire, the maximum number of widely-spaced bolts that can be safety-wired together using this method is three. If there were more than three bolts, additional wires would be needed to connect them all.

    Rate this question:

  • 6. 

    33. (423) When you use the water manometer, you should

    • Relieve tank pressure by disconnecting the manometer hose.

    • Ensure that the manometer safety relief valves are calibrated.

    • Unplug the negative pressure connection when the fuel tank is given a positive test.

    • Ensure the positive pressure connection is plugged when the fuel tank is under negative pressure.

    Correct Answer
    A. Unplug the negative pressure connection when the fuel tank is given a positive test.
  • 7. 

    49. (432) Which maintenance stand can you easily move by yourself?

    • B–1.

    • B–2.

    • C–1.

    • Manlift.

    Correct Answer
    A. C–1.
    Explanation
    The correct answer is C-1. The reason why C-1 is the correct answer is because it is specifically designed to be easily moved by a single person. The B-1 and B-2 maintenance stands are larger and heavier, requiring more than one person to move them. The Manlift option is not a maintenance stand, but rather a type of equipment used for lifting personnel to higher areas. Therefore, C-1 is the only option that fits the criteria of being easily moved by oneself.

    Rate this question:

  • 8. 

    52. (433) What type scrub sinks is required in existing fuel system facilities?

    • Hands-free type.

    • Contaminate free type.

    • Stainless steel surgical.

    • Rinse free cycle with hot water.

    Correct Answer
    A. Hands-free type.
    Explanation
    Hands-free type scrub sinks are required in existing fuel system facilities to ensure proper hygiene and prevent the spread of contaminants. These sinks allow users to operate them without touching them directly, reducing the risk of cross-contamination. This is especially important in fuel system facilities where cleanliness and safety are crucial.

    Rate this question:

  • 9. 

    98. (466) You have removed a fuel cell and during the inspection have found a defect, what should you do next?

    • Pressurize the cell to check for leaks.

    • Refer to applicable TO for allowable limits.

    • Condemn the cell and order a new one.

    • Ignore the damage and reinstall it.

    Correct Answer
    A. Refer to applicable TO for allowable limits.
    Explanation
    After removing a fuel cell and discovering a defect, the next step would be to refer to the applicable technical order (TO) for allowable limits. This is important because the TO provides guidelines and specifications for the maintenance and inspection of aircraft components. By referring to the TO, one can determine whether the defect falls within the acceptable limits or if further action, such as condemning the cell and ordering a new one, is necessary. Pressurizing the cell to check for leaks may be part of the inspection process, but it is not the immediate next step after finding a defect. Ignoring the damage and reinstalling it would not be a safe or appropriate course of action.

    Rate this question:

  • 10. 

    3. (401) Which assembly includes the aft end of the fuselage of conventionally designed aircraft?

    • Fairing.

    • Ailerons.

    • Empennage.

    • Trailing edge.

    Correct Answer
    A. Empennage.
    Explanation
    The correct answer is Empennage. The empennage is the assembly at the aft end of the fuselage of conventionally designed aircraft. It includes the horizontal stabilizer, vertical stabilizer, and control surfaces such as the elevator and rudder. The empennage plays a crucial role in providing stability and control to the aircraft during flight.

    Rate this question:

  • 11. 

    7. (404) The size of a bolt is generally stated in terms of its

    • Weight, diameter, and head size.

    • Head size, grip length, and weight.

    • Length, weight, and threads per inch.

    • Diameter, length, and threads per inch.

    Correct Answer
    A. Diameter, length, and threads per inch.
    Explanation
    The size of a bolt is generally stated in terms of its diameter, length, and threads per inch. The diameter refers to the thickness of the bolt, the length refers to the overall size of the bolt, and the threads per inch refers to the number of threads that are present on the bolt per inch of length. These three measurements are important in determining the size and compatibility of a bolt for a specific application. The weight, head size, and grip length are not typically used to describe the size of a bolt.

    Rate this question:

  • 12. 

    10. (406) Which type of rivet is used on the top skin surface of an aircraft?

    • Flathead.

    • Countersunk.

    • Roundhead.

    • Brazier head.

    Correct Answer
    A. Countersunk.
    Explanation
    Countersunk rivets are used on the top skin surface of an aircraft. These rivets have a tapered head that sits flush with the surface, providing a smooth and aerodynamic finish. This helps to reduce drag and maintain the aircraft's performance. Flathead, roundhead, and brazier head rivets are not typically used on the top skin surface as they would create a protrusion or uneven surface, which could negatively impact the aircraft's aerodynamics.

    Rate this question:

  • 13. 

    11. (406) Which is a feature of the hi-lok type of fastener?

    • It is a single-part fastener

    • It can easily be overtorqued.

    • It can be installed with hand tools.

    • It is a low-strength threaded fastener.

    Correct Answer
    A. It can be installed with hand tools.
    Explanation
    The hi-lok type of fastener is a feature that can be installed with hand tools. This means that it does not require specialized equipment or power tools to be installed. This feature makes it convenient and accessible for use in various applications. It being a single-part fastener means that it does not consist of multiple components. The statement about it being easily overtorqued is not mentioned in the question or answer choices. Lastly, the question does not provide information about the strength of the hi-lok fastener.

    Rate this question:

  • 14. 

    15. (409) What is the first step when removing a V-band type coupling?

    • Remove the nut.

    • Cut the safety wire.

    • Remove the snap rings.

    • Pull back on the.

    Correct Answer
    A. Cut the safety wire.
    Explanation
    The correct answer is "Cut the safety wire." When removing a V-band type coupling, the first step is to cut the safety wire. This is necessary to release the tension and secure the coupling. Once the safety wire is cut, the coupling can be easily removed by following the remaining steps.

    Rate this question:

  • 15. 

    18. (411) Why is the use of cotter pins on aircraft systems favorable?

    • They can be reused after removal.

    • They are stronger than safety wire.

    • They are less expensive than other pins.

    • They can be removed and installed quickly.

    Correct Answer
    A. They can be removed and installed quickly.
    Explanation
    The use of cotter pins on aircraft systems is favorable because they can be removed and installed quickly. This is important in aircraft maintenance and repairs, as it allows for efficient and timely servicing of the systems. Additionally, quick removal and installation of cotter pins can help minimize downtime and ensure that the aircraft is back in operation as soon as possible.

    Rate this question:

  • 16. 

    19. (412) During an integral tank inspection, you discover an area at which the protective coating is scarred and the metal is discolored. Pitting has also occurred to a depth of one mil (0.001 inch). What degree of corrosion has taken place?

    • Light.

    • Severe.

    • Moderate.

    • Intermediate.

    Correct Answer
    A. Light.
    Explanation
    The given answer is "Light" because the description of the situation indicates that the corrosion is not very severe. The protective coating is scarred and the metal is discolored, but the pitting has only occurred to a depth of one mil (0.001 inch). This suggests that the corrosion is not extensive and can be classified as light.

    Rate this question:

  • 17. 

    21. (414) What types of hammers are used in fuel systems maintenance?

    • Mallets and claw hammers.

    • Claw and ball-peen hammers.

    • Soft-faced mallets and ball-peen hammers.

    • Mallets and plastic-face hammers.

    Correct Answer
    A. Soft-faced mallets and ball-peen hammers.
    Explanation
    Soft-faced mallets and ball-peen hammers are used in fuel systems maintenance. Soft-faced mallets have a non-metallic face that prevents damage to delicate parts while still providing enough force to make adjustments or repairs. Ball-peen hammers have a rounded end and a flat end, with the rounded end used for shaping metal and the flat end used for striking punches and chisels. These types of hammers are suitable for working on fuel systems as they provide the necessary precision and force without causing damage to the components.

    Rate this question:

  • 18. 

    35. (425) The Model T477W bonding meter is designed to measure

    • Voltage.

    • Resistance.

    • Wattage.

    • Amperage.

    Correct Answer
    A. Resistance.
    Explanation
    The Model T477W bonding meter is specifically designed to measure resistance. This means that it is meant to determine the opposition to the flow of electric current in a circuit. It is not designed to measure voltage, wattage, or amperage.

    Rate this question:

  • 19. 

    38. (426) What support equipment item is designed to operate pneumatic tools at a maximum air pressure of 200 pounds per square inch (psi)?

    • MC–1A.

    • MC–2A.

    • MD–1.

    • MD–2.

    Correct Answer
    A. MC–2A.
    Explanation
    The correct answer is MC-2A. MC-2A is a support equipment item that is designed to operate pneumatic tools at a maximum air pressure of 200 pounds per square inch (psi).

    Rate this question:

  • 20. 

    55. (435) Who is responsible for evaluating industrial ventilation systems?

    • Flight chief.

    • Section chief.

    • Fire Protection Services.

    • Bioenvironmental Engineering Flight.

    Correct Answer
    A. Bioenvironmental Engineering Flight.
    Explanation
    The Bioenvironmental Engineering Flight is responsible for evaluating industrial ventilation systems. This department specializes in assessing and ensuring the safety and health of individuals in various environments, including industrial settings. They have the expertise and knowledge to evaluate ventilation systems and ensure that they meet the necessary standards and regulations to protect workers from potential hazards and maintain a safe working environment.

    Rate this question:

  • 21. 

    64. (440) Which task would be considered a change to the entry permit?

    • The task takes a few days longer than expected.

    • Authorized chemicals are brought into the tank.

    • The aircraft is moved from one repair location to another.

    • Previously permitted personnel require re-entry into the tank.

    Correct Answer
    A. The aircraft is moved from one repair location to another.
    Explanation
    The question asks which task would be considered a change to the entry permit. The entry permit is a document that allows certain tasks or actions to be performed. Out of the given options, moving the aircraft from one repair location to another would require a change to the entry permit because it involves a different location than initially permitted. The other options do not involve a change to the permit.

    Rate this question:

  • 22. 

    68. (443) Foam removed from a fuel tank may be stored in an

    • Enclosed metal shed.

    • Open metal container.

    • Electro-static-free plastic bag

    • Vented rubber container

    Correct Answer
    A. Electro-static-free plastic bag
    Explanation
    Foam removed from a fuel tank needs to be stored in an electro-static-free plastic bag. This is because foam is highly flammable and can generate static electricity. Storing it in an electro-static-free plastic bag helps to prevent any static electricity buildup, reducing the risk of fire or explosion. An enclosed metal shed, open metal container, or vented rubber container may not provide sufficient protection against static electricity.

    Rate this question:

  • 23. 

    74. (447) What factor(s) determine the appropriate condition/action of an integral tank fuel leak?

    • Location.

    • Classification.

    • Classification and location.

    • Location and repair required.

    Correct Answer
    A. Classification and location.
    Explanation
    The appropriate condition/action of an integral tank fuel leak is determined by both its classification and location. The classification refers to the severity and potential risks associated with the leak, while the location determines the accessibility and ease of repair. By considering both factors, the appropriate measures can be taken to address the leak effectively and ensure the safety of the aircraft and its occupants.

    Rate this question:

  • 24. 

    13. (408) Flexible hose is used in areas of the aircraft

    • Which are subject to great amount of vibration.

    • Which are not subject to vibration.

    • Where flexibility is not required.

    • Where rigidity is required.

    Correct Answer
    A. Which are subject to great amount of vibration.
    Explanation
    Flexible hose is used in areas of the aircraft that are subject to a great amount of vibration because flexible hoses can absorb the vibrations and prevent damage or failure. The flexibility of the hose allows it to move and adjust with the vibrations, ensuring that it remains intact and functional. In areas where there is no vibration or where rigidity is required, flexible hoses may not be necessary as they are designed specifically to accommodate and withstand vibrations.

    Rate this question:

  • 25. 

    22. (414) Which type of wrench should you use to tighten an internal wrenching nut?

    • Adjustable jaw.

    • Recessed.

    • Socket.

    • Allen.

    Correct Answer
    A. Allen.
    Explanation
    To tighten an internal wrenching nut, you should use an Allen wrench. Allen wrenches, also known as hex keys, have a hexagonal-shaped head that fits into the corresponding hexagonal hole in the nut. This type of wrench provides a secure and precise fit, allowing you to apply the necessary torque to tighten the nut effectively. Adjustable jaw wrenches are used for different types of nuts that require adjustable sizes, while recessed wrenches and sockets are not specifically designed for internal wrenching nuts.

    Rate this question:

  • 26. 

    23. (415) What should you use to clean tools that are extremely greasy and grimy?

    • JP–4 or gasoline.

    • Approved cleaning solvent.

    • Methyl ethyl ketone (MEK).

    • Aluminum oxide abrasive cloth.

    Correct Answer
    A. Approved cleaning solvent.
    Explanation
    The correct answer is "Approved cleaning solvent." When tools are extremely greasy and grimy, it is important to use a cleaning solvent that is specifically approved for this purpose. JP-4 or gasoline may be flammable and pose safety risks, while methyl ethyl ketone (MEK) may be too harsh and damaging to the tools. Using an approved cleaning solvent ensures effective and safe cleaning of the tools. Aluminum oxide abrasive cloth is not suitable for cleaning greasy and grimy tools as it is an abrasive material used for polishing and sanding.

    Rate this question:

  • 27. 

    26. (417) Which tool would you use to repair a fuel cell fitting?

    • Air chisel.

    • Bench grinder.

    • Torque wrench.

    • Pneumatic buffer.

    Correct Answer
    A. Pneumatic buffer.
    Explanation
    A pneumatic buffer is a tool used to smooth and polish surfaces. It is not suitable for repairing a fuel cell fitting, as it does not have the necessary features or capabilities to perform such a task. Fuel cell fittings require precision and specific tools for proper repair, which a pneumatic buffer does not provide.

    Rate this question:

  • 28. 

    29. (419) After you are finished using the sealant filleting gun, what must be done?

    • Discard the residual sealant

    • Clean the residual sealant.

    • Replace the cartridge.

    • Turn the gun off.

    Correct Answer
    A. Clean the residual sealant.
    Explanation
    After using the sealant filleting gun, it is important to clean the residual sealant. This is necessary to prevent the sealant from hardening and clogging the gun, which could affect its performance in future use. Cleaning the residual sealant also helps to maintain the gun in good condition and ensures that it is ready for the next application.

    Rate this question:

  • 29. 

    31. (421) What will happen to an air hose if you run it over with heavy equipment?

    • It will rupture.

    • It will roll and become twisted.

    • It will get dirty.

    • Nothing, hoses are very strong

    Correct Answer
    A. It will rupture.
    Explanation
    If an air hose is run over by heavy equipment, it will rupture. This means that the hose will break or burst, causing a hole or tear in the material. Running over the hose with heavy equipment puts a significant amount of pressure and force on it, which can cause it to become damaged and ultimately rupture.

    Rate this question:

  • 30. 

    32. (422) When using the electric knife to cut foam, which do you not inspect?

    • Cut wires.

    • Motor speed.

    • Blade installation.

    • Cracks in body.

    Correct Answer
    A. Motor speed.
    Explanation
    When using an electric knife to cut foam, the motor speed is not something that needs to be inspected. The motor speed is controlled by the knife itself and does not require any manual adjustment or inspection. It is more important to inspect the cut wires to ensure they are not damaged, the blade installation to ensure it is secure and properly aligned, and any cracks in the body of the knife that may affect its performance or safety.

    Rate this question:

  • 31. 

    45. (430) Where should you position the fuel cell/tank servicing cart?

    • Near the MA–1 blower.

    • Beside the HDU/13 heater.

    • Inside the fuel system repair area.

    • At least 10 feet from any vent or other tank opening.

    Correct Answer
    A. Inside the fuel system repair area.
  • 32. 

    54. (434) What outside agency must be notified prior to opening fuel tanks?

    • Civil Engineering.

    • Bioenvironmental Engineering Services.

    • Fire Protection Services.

    • Wing Safety.

    Correct Answer
    A. Fire Protection Services.
    Explanation
    Fire Protection Services must be notified prior to opening fuel tanks because they are responsible for ensuring the safety of the facility and preventing any potential fire hazards. Opening fuel tanks can be a dangerous task, as it involves handling flammable materials. Fire Protection Services will assess the situation, provide necessary safety precautions, and supervise the process to minimize the risk of fire or any other accidents.

    Rate this question:

  • 33. 

    62. (438) Which is the most important role when serving as an attendant?

    • Recognizing symptoms of over exposure.

    • Ensuring the entrant has the proper hand tools.

    • Contacting the wing safety office.

    • Notifying bioenvironmental after taking tank readings

    Correct Answer
    A. Recognizing symptoms of over exposure.
    Explanation
    When serving as an attendant, the most important role is recognizing symptoms of over exposure. This is crucial because it helps in identifying and addressing any potential health risks or hazards that the entrant may be facing. By being able to recognize symptoms such as dizziness, nausea, or difficulty breathing, the attendant can take immediate action to ensure the safety and well-being of the entrant. This role is vital in preventing any serious health issues or accidents from occurring during the task at hand.

    Rate this question:

  • 34. 

    65. (441) What must you do when you are draining fuel into a metallic container?

    • Bond container to aircraft.

    • Place container on the ground.

    • Ensure all facility doors are opened.

    • Place several pieces of absorbent mat on the ground.

    Correct Answer
    A. Bond container to aircraft.
    Explanation
    When draining fuel into a metallic container, it is important to bond the container to the aircraft. This is necessary to prevent the buildup of static electricity, which could potentially cause a spark and ignite the fuel vapors. Bonding the container to the aircraft ensures that any static charge is safely discharged, reducing the risk of fire or explosion.

    Rate this question:

  • 35. 

    67. (443) When removing fire suppression foam from an aircraft fuel tank, you should

    • Wear a half-face respirator.

    • Remove it as quickly as possible

    • Wear chemical-resistant gloves.

    • Tear it as evenly as possible.

    Correct Answer
    A. Wear chemical-resistant gloves.
    Explanation
    When removing fire suppression foam from an aircraft fuel tank, it is important to wear chemical-resistant gloves. This is because the foam may contain chemicals that can be harmful to the skin. Wearing chemical-resistant gloves provides a barrier between the foam and the skin, reducing the risk of exposure to these chemicals.

    Rate this question:

  • 36. 

    69. (443) If you were planning to cut small quantities of replacement foam for a fuel tank, you would use

    • An Ontario knife.

    • A razor blade.

    • A hacksaw

    • A stitcher.

    Correct Answer
    A. An Ontario knife.
    Explanation
    An Ontario knife would be the best tool for cutting small quantities of replacement foam for a fuel tank because it is a versatile and sharp knife that can easily cut through foam material. A razor blade may not be as effective as it is not specifically designed for cutting foam. A hacksaw would be too large and cumbersome for cutting small quantities of foam. A stitcher is not a suitable tool for cutting foam.

    Rate this question:

  • 37. 

    81. (453) A brush coat of sealant should be applied with

    • A spatula.

    • An acid brush.

    • A paint brush.

    • A fairing tool.

    Correct Answer
    A. An acid brush.
    Explanation
    An acid brush should be used to apply a brush coat of sealant. Acid brushes are commonly used for applying sealants and other chemicals because they have bristles made of natural fibers that are resistant to acid and other corrosive substances. The bristles are also firm enough to evenly spread the sealant on the surface, ensuring proper coverage. Using an acid brush for this purpose is more effective and efficient compared to using a spatula, a paint brush, or a fairing tool.

    Rate this question:

  • 38. 

    86. (457) The ply of a self-sealing cell that contains the fuel is the

    • Retainer.

    • Buna gum.

    • Nylon barrier.

    • Sealant layer.

    Correct Answer
    A. Nylon barrier.
    Explanation
    The correct answer is "nylon barrier". In a self-sealing cell that contains fuel, the ply refers to a layer or sheet of material. The nylon barrier is the layer responsible for sealing and preventing the fuel from leaking. It acts as a protective barrier and helps maintain the integrity of the cell by preventing fuel leakage. Buna gum and sealant layer are not specifically mentioned in the question and therefore are not the correct answers.

    Rate this question:

  • 39. 

    91. (460) Vithane cells which have been in storage for a long time in a dry climate will tend to

    • Melt.

    • Shrink.

    • Expand.

    • Grow fungus.

    Correct Answer
    A. Shrink.
    Explanation
    When cells are stored for a long time in a dry climate, they tend to lose moisture and become dehydrated. This dehydration causes the cells to shrink in size.

    Rate this question:

  • 40. 

    92. (461) What is the most important factor in isolating a fuel cell leak?

    • The size of the fuel leak.

    • Knowledge of the cavity drain system.

    • Whether or not the cell is a bladder type.

    • The construction of a cross-sectional view.

    Correct Answer
    A. Knowledge of the cavity drain system.
    Explanation
    The most important factor in isolating a fuel cell leak is having knowledge of the cavity drain system. This means understanding how the fuel cell is designed and how it is connected to the surrounding components. By having this knowledge, one can identify the potential pathways for fuel leakage and take appropriate measures to isolate and fix the leak. The size of the fuel leak, whether or not the cell is a bladder type, and the construction of a cross-sectional view are not as crucial in isolating the leak as having knowledge of the cavity drain system.

    Rate this question:

  • 41. 

    2. (401) The primary structural components of an aircraft wing include the spars, ribs, and

    • Skin.

    • Stringers.

    • Empennage.

    • Trailing edge.

    Correct Answer
    A. Skin.
    Explanation
    The primary structural components of an aircraft wing include the spars, ribs, and skin. The spars are long, horizontal beams that run the length of the wing and provide the main structural support. The ribs are vertical or diagonal supports that connect to the spars and help maintain the wing's shape. The skin, also known as the wing covering, is the outermost layer of the wing and provides aerodynamic smoothness and protection to the internal components. The stringers are additional structural members that run parallel to the spars and provide additional support. The empennage refers to the tail section of the aircraft, which is not a part of the wing. The trailing edge is the rear edge of the wing, which is also not a primary structural component.

    Rate this question:

  • 42. 

    4. (402) Which of the following are examples of secondary flight controls?

    • Ailerons.

    • Rudders.

    • Trim tabs.

    • Elevators.

    Correct Answer
    A. Trim tabs.
    Explanation
    Secondary flight controls are the additional control surfaces on an aircraft that assist in controlling its movement and stability. Ailerons, rudders, and elevators are considered primary flight controls as they directly control the aircraft's roll, yaw, and pitch respectively. Trim tabs, on the other hand, are secondary flight controls that are used to fine-tune the primary controls and adjust the aircraft's balance and stability during flight. They help the pilot in reducing control forces and maintaining the desired flight attitude.

    Rate this question:

  • 43. 

    6. (404) The situation that describes an ideal installation of a bolt on an aircraft component is the grip length of the bolt is

    • Slightly shorter than the thickness of the materials being joined.

    • The same as the thickness of the materials being joined.

    • Slightly longer than the materials being joined.

    • Much longer than the materials being joined.

    Correct Answer
    A. Slightly shorter than the thickness of the materials being joined.
    Explanation
    An ideal installation of a bolt on an aircraft component requires the grip length of the bolt to be slightly shorter than the thickness of the materials being joined. This ensures that the bolt can securely hold the materials together without excessive protrusion or insufficient engagement. Having the grip length slightly shorter allows for proper thread engagement and prevents the bolt from bottoming out, resulting in a secure and reliable joint.

    Rate this question:

  • 44. 

    14. (408) Which example is not acceptable regarding the installation of a flexible hose assembly?

    • Use oil to aid the installation of a self-sealing hose.

    • Install the hose so that it will not be subjected to twisting.

    • Ensure clamps are not so tight that they restrict flow.

    • Support the hose at least every 24 inches of length.

    Correct Answer
    A. Use oil to aid the installation of a self-sealing hose.
    Explanation
    Using oil to aid the installation of a self-sealing hose is not acceptable because it can cause the hose to slip out of position or create a potential leak. It is important to install the hose without any additional lubrication to ensure a secure and tight connection.

    Rate this question:

  • 45. 

    17. (410) What minimum diameter safety wire should be installed on bolts having a .050-inch drilled hole?

    • .020-inch.

    • .028-inch.

    • .032-inch.

    • .045-inch

    Correct Answer
    A. .032-inch.
    Explanation
    The minimum diameter safety wire that should be installed on bolts with a .050-inch drilled hole is .032-inch. This diameter ensures that the safety wire is securely fastened to the bolts and provides the necessary level of safety. A smaller diameter wire may not be strong enough to hold the bolts in place, while a larger diameter wire may not fit properly in the drilled hole. Therefore, .032-inch is the appropriate size for this application.

    Rate this question:

  • 46. 

    20. (413) When installing removable screws and bolts, what portion is coated with sealant?

    • Install only nonmetal hardware and clamps.

    • Spray all metal surfaces to be installed with SAE–10 oil.

    • Paint all exposed metal on the clamp and attaching hardware.

    • Coat the lower side of the heads of screws and bolts with sealant.

    Correct Answer
    A. Coat the lower side of the heads of screws and bolts with sealant.
    Explanation
    When installing removable screws and bolts, the lower side of the heads of screws and bolts should be coated with sealant. This helps to create a tight seal and prevent any leakage or loosening of the screws and bolts. Coating the lower side of the heads with sealant ensures that the sealant is in direct contact with the surface being fastened, providing a secure and reliable connection.

    Rate this question:

  • 47. 

    25. (417) What powered tool would you use to remove access door screws?

    • Impact wrench.

    • Speed handle.

    • Air hammer.

    • Electric drill with adapter.

    Correct Answer
    A. Impact wrench.
    Explanation
    An impact wrench is the most suitable powered tool for removing access door screws. It is designed to deliver high torque output with minimal effort, making it ideal for loosening tight or stubborn screws. A speed handle is a manual tool and would require more physical effort. An air hammer is typically used for chiseling or breaking apart materials, not for removing screws. While an electric drill with an adapter can also remove screws, an impact wrench is specifically designed for this purpose and would likely be more efficient and effective.

    Rate this question:

  • 48. 

    28. (418) The ratio of output pressure to input pressure of a two-part sealant high-pressure injection gun is

    • 10 to 1.

    • 25 to 1.

    • 50 to 1.

    • 125 to 1.

    Correct Answer
    A. 50 to 1.
    Explanation
    The ratio of output pressure to input pressure of a two-part sealant high-pressure injection gun is 50 to 1. This means that for every unit of input pressure, the gun will generate 50 units of output pressure. This high ratio allows for the efficient and effective application of the sealant, ensuring that it is properly injected into the desired areas.

    Rate this question:

  • 49. 

    30. (420) The one-part sealant injection gun is used to inject sealant into

    • Prepacks.

    • Loose rivet holes.

    • Voids inside the tank.

    • Channels under the wing skin.

    Correct Answer
    A. Channels under the wing skin.
    Explanation
    The one-part sealant injection gun is specifically designed to inject sealant into channels under the wing skin. This suggests that the sealant is intended to be applied in areas where there are channels, which are likely to be present under the wing skin. This method of injection is not suitable for prepacks, loose rivet holes, or voids inside the tank, as it is specifically designed for channels under the wing skin.

    Rate this question:

Quiz Review Timeline (Updated): Nov 15, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Nov 15, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 19, 2012
    Quiz Created by
    Catherine Halcomb
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.