Aircraft Maintenance Technician (AMT) 40 O&P Practice Test

These questions are part of the practice quiz. Start practicing

• Which mechanism provides anti-torque on a helicopter?
• When replacing an AD-related part, which statement describes why AD compliance documentation is required?
• Which items are typically included in a maintenance log entry?
• What must be done with a damaged area in a bonded honeycomb structure prior to beginning repairs?
• What is the function of the pitot-static system?
• Name the extinguishing agent most commonly used by high-rate discharge fire extinguishing systems.
• Name the two basic types of fire extinguishing systems.
• What does non-destructive testing (NDT) involve and why is it used?
• Why is butyrate dope safer than nitrate dope?
• Which glue is NOT used in modern aircraft construction?
• What could be a consequence of failing to comply with ADs and SBs?
• Which description best matches how an incorrect fuel-air mixture is detected during operation?
• What are the four most common types of high lift devices?
• What should be documented when replacing an AD-related part?
• What is the duty of an A&P mechanic?
• Which statement best describes a balance trim tab?
• Which material is listed as a possible facing or core material for bonded honeycomb structures?
• What information is required before a cable rigging chart can be used?
• When performing a post-maintenance test flight, which of the following would be checked?
• Using a spark plug with an improper heat range can cause?
• How does a float-type carburetor meter fuel?
• How is a weight and balance calculation performed?
• What is the general purpose of secondary flight controls such as balance tabs, anti-servo tabs, servo tabs, and spring tabs?
• Why are lightweight steel bushings sometimes used in wooden structures?
• What is a typical lubricant's function in an engine?
• On a roll of fabric, what does the selvage edge prevent?
• In a fire warning system, what mechanical fault could lead to false alarms?
• What is the purpose of high lift devices such as slats and slots?
• What is the shape of the cells in the honeycomb core?
• How should used oil and solvents be disposed of?
• Which of the following is a common method used to apply pressure to glue joints during bonding?
• What is perishable information in maintenance?
• Describe the function of a rotorcraft cyclic pitch control.
• Which metal forms the loop used in a Kidde continuous-loop fire detection system?
• Which of the following is not a common sign of tire wear indicating replacement is needed?
• How should a hole be drilled in Plexiglas to avoid damage when the drill breaks through?
• Which statement best describes the effect of increasing the collective pitch on rotor lift?
• A drill bit used for drilling composites should operate at approximately what speed?
• Where would you use surface tape?
• Which device is used to prevent a cable from rubbing on aircraft structure?
• What type of wood should be used when splicing or reinforcing plywood webs?
• Describe the characteristics of a scarf joint.
• What is a torque sequence and why is it used?
• What minimum curing temperature should be observed when joining wood with adhesives?
• Which of the following is NOT a listed use for plywood in aircraft construction?
• What type of defect in a bonded honeycomb structure can be repaired using the potted repair method?
• What mechanism is most commonly used to compensate for the torque produced by the main rotor of a helicopter?
• What type of defect is detectable by dye penetrant inspection?
• How should the edges of drainage, inspection, and ventilation holes be reinforced?
• Is compression wood acceptable for structural repairs?
• Under 14 CFR Part 43, which statement is true about repairs?
• Which component is primarily responsible for releasing contents in the Freon bottle discharge system when activated?
• Which device generates ignition spark independent of the aircraft's electrical system?
• Why should control surfaces be locked when an aircraft is parked?
• Which two families of fire extinguishing systems are used in aircraft?
• What two types of organic fibers are used for covering aircraft?
• How is the amount of thrust produced by the tail rotor controlled?
• What initiates the rupture of the frangible disk in the Freon bottle system?
• What is the primary purpose of a landing gear oleo or shock absorber?
• In a Fenwal double-loop fire detection system, how are the detector units wired?
• Which fire detection system uses a continuous loop whose electrical resistance changes with temperature along the loop?
• What information is required before using a cable rigging chart?
• Which of the following materials is not listed as a facing or core material for bonded honeycomb structures?
• If a hydraulic system loses pressure, what is a likely effect on actuators?
• What is a key consideration when disposing of used oil and solvents?
• Which statement is true about splices in a spar?
• What is the maximum number of splices allowed for any single spar?
• Which principle is used by a photoelectric smoke detector to detect smoke?
• Auxiliary flight controls include high-lift devices used during low-speed flight. Which devices are typically included?
• Which three seams are commonly used in machine-sewn fabric work?
• Which governing body regulates airworthiness standards referenced by FAA regulations?
• Which fabric is unaffected by moisture and mildew?
• What is an Airworthiness Directive (AD) and what action does it require?
• In a Lindberg fire detection system, what happens when the detector tube heats up?
• Why should the various pieces of wood being joined be kept in the same room for at least 24 hours prior to joining?
• Which of the following correctly lists the two dope types used for fabric finishes?
• Which statement best describes a scarf joint?
• In fabric terminology, which direction is parallel to the line of flight as described on the selvage markings?
• What is meant by warp, weft, and bias?
• Secondary flight controls consist of various tabs; which combination of tabs forms the common types?
• When inspecting engine oil for metal particles, what is the correct indicator of potential wear?
• What is dye penetrant inspection used for?
• How does a carbon monoxide detector indicate the presence of this deadly gas?
• A splayed patch may be used if the hole can be cleared out to a diameter of less than how many thicknesses of the skin?
• What does metallic debris in engine oil suggest?
• How are Freon bottles protected from excessively high temperatures and how can you tell that this has occurred?
• What are the usual locations where a carbon monoxide detector would be installed?
• Why must the beveled cut be accurate on both pieces when repairing with a scarf joint?
• How does corrosion typically begin on an airframe made of aluminum?
• Which statement correctly contrasts thermocouple fire warning systems with thermal switch systems?
• Which of the following is used as a facing or core material in bonded honeycomb structures for special applications?
• What is a balance trim tab?
• Which statement best describes the safety advantage of butyrate dope over nitrate dope?
• Which of the following is NOT listed as a common cause of delamination?
• In fabric coverings, reinforcing tape between fabric and rib stitching prevents what problem?
• What is the function of reinforcing tape?
• What are the three axes of an airplane?
• What is the purpose of engine cooling systems?
• An incorrect center of gravity location can affect which aspects?
• What is the function of a circuit breaker in an aircraft electrical system?
• What must be used to determine proper Freon container gauge pressures?
• If voltage doubles while resistance remains constant, what happens to current according to Ohm's Law?
• What are the principal methods used to test the condition of fabric?
• How would you determine the strength requirements for fabric used to re-cover an aircraft?
• What is a spring tab?
• A fabric is considered unairworthy when its remaining strength is less than what percent of its original strength?
• What does NDT stand for in aircraft maintenance contexts?
• What is the primary function of a propeller on an aircraft engine?
• What is the role of a static port in aircraft instruments?
• Name the extinguishing agent most commonly used by conventional fire extinguishing systems.
• What should be done to prevent a plywood patch and the pressure plate from sticking together if glue is extruded from the joint?
• What are the most likely places for a control cable to wear or break?
• Which statement about the safety of butyrate dope is correct?
• Describe the construction of a bonded honeycomb structure.
• What is the function of a magneto?
• Which defect is most associated with decay due to moisture?
• What mechanism discharges a Freon bottle?
• Which best describes the purpose of a scarf joint’s bevels?
• Which set of surfaces are the three primary flight controls of an aircraft?
• What is a primary consequence of insufficient clamping pressure on a glue joint?
• Which statement best describes the purpose of trim systems in flight controls?
• What is the function of a cable tension regulator?
• Describe the tools used to check control surface travel?
• Which statement best describes airworthiness maintenance?
• What does Ohm's Law express?
• What are the three types of glues used in modern aircraft construction and repair?
• What is the purpose of the selvage edge on a roll of fabric?
• How is the service life of a discharge cartridge calculated?
• Which factors contribute to crazing in transparent plastic windows and windshields?
• What is a fairlead?
• If the engine cooling system fails, what is the most likely consequence?
• To determine cartridge service life, which information is consulted?
• If the original rib stitching spacing is unknown, how should you determine the correct spacing?
• What are the two types of dope used for fabric finishes?
• Who issues the Airworthiness Certificate for an aircraft?
• Under what condition are anti-tear strips used under wing rib stitching?
• What is the function of the frangible disk in the Freon bottle discharge system?
• What is the purpose of a schematic or wiring diagram?
• Which agent is used by conventional fire extinguishing systems?
• How does a fuel-injected engine meter fuel?
• What are the three forms of wood commonly used in aircraft construction?
• What are the possible effects of kinks and sharp bends in the sensing element(s) of a fire warning system?
• When inspecting wood structures, why might stains and discolored areas be significant?
• What is the function of a fuel/water separator in aviation fuel systems?
• Which component forms the sensing element in a Kidde continuous-loop fire detection system?
• Which instrument primarily uses ambient static pressure to indicate altitude?
• Which statement best describes vortex generators?
• Which statement is NOT a method to prevent detonation?
• Splices to a wood spar are prohibited under which locations?
• Aircraft covering fabrics are made from materials from what two sources?
• Which agency issues Airworthiness Directives (ADs)?
• What happens when a thermal switch activates in its circuit?
• Which statement best explains why control surfaces should be locked when an aircraft is parked?
• What are the most common causes for delamination of a composite structure?
• Which of the following best describes the purpose of a wiring diagram?
• Which statement about trim systems is true?
• Which combination best describes the sources of materials used in fabric coverings for aircraft?
• Why is thread-type fastener compatibility important?
• Which instrument is used to verify tire pressure?
• How are the fabric type and strength requirements determined for fabric-covered aircraft?
• Which synthetic fibers are used for covering aircraft?
• What are the two primary uses for plywood in aircraft construction?
• NOT a form of wood commonly used in aircraft construction?
• Describe the function of a rotorcraft collective pitch control.
• What type of glue may have been used in older wooden aircraft construction that requires careful inspection to detect deterioration?
• How does environmental dew point affect corrosion risk?
• Describe the operation of a Lindberg fire detection system.
• What is the principal advantage of the envelope method for covering wings?
• What is the purpose of FAR Part 43?
• Before covering with doped fabric, the structure should be prepared by applying which type of coating?
• What is the center of gravity in aviation?
• What is a tie-off knot?
• Which statement best describes fatigue damage in aircraft structures?
• What condition is indicated if the yellow disk is missing in a fire extinguishing system?
• What is the purpose of large surface area washers when used on wooden structures?
• Where must the Airworthiness Certificate be displayed on an aircraft?
• What is the function of a vortex generator?
• How is a Freon container checked for proper pressure?
• Which agent is most commonly used by high-rate discharge systems?
• In a bonded honeycomb structure, what are the outer layers bonded to the core called?
• Which data is not typically documented when replacing an AD-related part?
• High lift devices are used primarily during which phase of flight?
• What method should be used to determine if a tire is properly inflated?
• Which items must be documented in maintenance action records?
• What does rigging refer to in flight controls?
• Fabric is considered unairworthy when it has deteriorated to what percentage of its original strength?
• What is the purpose of an electrical ground in an aircraft?
• Under 14 CFR Part 43, which statement about repairs is correct?
• Why is it important to comply with ADs and SBs?
• What precautions are taken when handling lithium batteries?
• Which term describes a wood defect where the grain runs at an angle to the face of the board?
• How should a structure that will be covered with doped fabric be prepared following inspection and prior to covering?
• What is the primary purpose of non-destructive testing (NDT) in maintenance?
• Which of the following is NOT listed as a wood defect?
• What is fatigue damage and how is it detected?
• Should thermal switches be wired in series or in parallel with each other?
• The potted repair method is used to repair which feature in a bonded honeycomb structure?
• Which of the following best describes a correct use for surface tape?
• Which of the following options correctly lists the two types of dope used for fabric finishes?
• Which statement about the two dope types used for fabric finishes is true?
• What identification marking is found on the selvage edge, and in which direction is the warp applied?
• Which devices are examples of punch testers used to evaluate fabric condition?
• Name two types of smoke detection systems used in aircraft.
• In plywood skin repairs, which patch type is used for small holes in very thin skin?
• What PPE should be worn during maintenance tasks?
• How can the operation of a photoelectric smoke detector be tested?
• Which statement describes how a photoelectric smoke detector generates a warning?
• Why is it important to apply the proper clamping pressure to a glue joint?
• Which joint is used to splice a solid or rectangular wood spar?
• Why is spark plug heat range important?
• Weight and balance calculations use the sum of weights and moments of all items to compute what?
• Which statement describing butyrate dope is true in comparison to nitrate dope?
• Why is it important to consider the open-assembly time when gluing wooden structures?
• What is the purpose of a preflight inspection?
• Name three mechanical methods by which flight control systems may be actuated.
• What is detonation and how is it prevented?
• What is pre-ignition and what can cause it?
• A scarf joint typically uses bevels on the surfaces at a slope of
• When evaluating fabric strength for re-covering, which two performance parameters primarily determine the required strength?
• Which materials are commonly used for airframe structural members?
• Describe an acceptable repair method for elongated bolt holes found in a wooden wing spar.
• What is a servo trim tab?
• Which tool is used to apply a precise torque to fasteners?
• Which statement describes the thermal switch fire detection system components?