Aviation Institute of Maintenance (AIM) Block 16 Practice Exam

These questions are part of the practice quiz. Start practicing

• What happens when ice forms on the propellers of an aircraft while in flight?
• How is the angle-of-attack of a rotating propeller measured?
• Ice accumulation on propeller blades during flight most directly causes which of the following effects?
• What is typically used to correct horizontal unbalance of a wood propeller?
• What should be documented after completing a ground test with a load bank?
• What is the purpose of rigging and clearance checks for flight control systems?
• What condition necessitates the use of caution or warning tags in maintenance areas?
• Which factor reduces the pitch angle during operation?
• What happens when the cockpit control level for a hydromatic constant-speed propeller is actuated?
• Explain the difference between dry and wet corrosion on aluminum components.
• What FAR has the operating conditions that make a 100-hour inspection mandatory?
• Which category of aircraft requires an inspection program under FAR 91 Subpart E?
• What is the purpose of an Aircraft Maintenance Manual (AMM)?
• When engine power increases, what happens to blade angle and angle of attack?
• Which of the following statements about the 'do not operate' tag is true?
• What type of permit is required to fly an aircraft to a place after the annual inspection has expired to have it performed?
• What is the blade movement for blades of a full-feathering constant-speed propeller that is in the LOW RPM position when the feathering action is begun?
• Which of the following is a basic step in a pre-maintenance electrical safety check?
• What is the typical difference between a generator and an alternator on most aircraft?
• How does a propeller synchrophasing system allow a pilot to reduce noise and vibration?
• Aerodynamic twisting forces tend to do what to the propeller blade angle?
• What fluid is generally used in propeller fluid anti-icing systems?
• How is a steel propeller hub tested for cracks?
• During an annual inspection, who may complete minor repairs and sign off the work?
• Why is a proper torqueing sequence critical for a bolted flange assembly?
• What FAR may allow an aircraft that is required to have a 100-hour inspection to fly up to 10 flight hours if necessary to reach a place at which the inspection can be accomplished?
• What is required when an aircraft is placed on a progressive inspection system?
• What is preventive maintenance in aviation, and what is a typical example?
• The aerodynamic twisting forces tend to turn the blades toward which angle?
• Which elements are approved by an aircraft's type certificate?
• What causes the greatest stress on a propeller?
• What is a common practice when returning a component to service after maintenance?
• What is the blade movement for blades of a feathering propeller that is in the HIGH RPM position when feathering action begins?
• What happens when a circuit breaker trips in an aircraft electrical system?
• Which component acts as a central distribution point to feed multiple circuits from a single source in an aircraft electrical system?
• When the control spring tension is increased, what is the effect on blade angle and RPM?
• Explain a standard torque sequence for a multi-bolt flange joint.
• How are blade angle changes made in constant-speed counterweight propellers and two-position counterweight propellers?
• To what position does centrifugal force acting on the counterweights move the blades of a constant-speed counterweight-type propeller?
• What type of aircraft must be inspected with an inspection program authorized under Federal Aviation Regulation 91, Subpart E?
• What is the likely consequence if a torqueing sequence is not followed for a bolted flange assembly?
• What is the purpose of a drain valve in a hydraulic reservoir?
• Who issues Service Bulletins concerning an improvement or change that may be made on an aircraft?
• If voltage remains constant and resistance doubles, what happens to current according to Ohm's Law?
• When may an aircraft be issued a special flight permit?
• How do blade station numbers increase?
• What is effective pitch?
• Why are lockout/tagout procedures important in maintenance?
• What is the purpose of a wiring diagram in maintenance?
• How often is an annual inspection required?
• In a fixed-pitch propeller, where is the blade angle smallest?
• How do you differentiate hydraulic pressure readings from tire pressure readings?
• What is the purpose of caution or warning tags on aircraft components?
• The constant-speed propeller range is controlled by which of the following?
• What does the rheostat control in a propeller anti-icing system?
• Opening the throttle on a reciprocating engine when the propeller is in the constant-speed range with the engine at cruise power does what to the blade angle?
• Plasticity in grease is described as which property?
• During engine operation at speeds below the range where the constant-speed propeller control can govern the RPM, the propeller remains in which pitch position?
• How does a torque wrench ensure proper fastener preload?
• What is the angle-of-attack of a rotating propeller measured between?
• What is the blade back?
• When is a propeller considered to be in overspeed condition?
• How is proper operation of electric deicing boots on individual propeller blades determined?
• Why is proper cleaning and drying of avionics compartments essential?
• Who is responsible for having and maintaining the aircraft maintenance records?
• For a feathering propeller in high rpm, this description matches the blade movement from low pitch to feather.
• How is anti-icing fluid ejected from the slinger ring on a propeller?
• Automatic propeller synchronization on multi-engine aircraft helps reduce vibration by aligning what?
• If an aircraft was not approved to return to service due to minor repair items found during an annual inspection, who may complete the repairs and approve it for return to service?
• How is the propeller feathering pump on a hydromatic propeller powered?
• Which inspection technique is used to reveal defects by applying a colored dye and checking for bleed-out on the surface?
• How is hydraulic system pressure read, and what could a drop indicate?
• Differentiate between a visual inspection and nondestructive testing (NDT) for structural damage.
• The approved alternate replacement for a severely damaged propeller is found in which records?
• Which outcome is achieved by performing a hydraulic reservoir drain and bleed procedure correctly?
• Describe the purpose and typical power source of an anti-ice/de-ice system.
• What is the purpose of a green tag or equivalent in aircraft maintenance?
• Which party is primarily responsible for keeping an aircraft in airworthy condition and maintaining its records?
• When a two-blade propeller is checked on a balancing beam, what will vertical imbalance cause?
• Why are locking wires used in fastener assemblies?
• Measuring blade angle requires the use of what?
• Which material is anodizing typically applied to for improved corrosion resistance and wear properties?
• What steps are typically involved in purging a fuel system to remove air after maintenance?
• Which statement correctly differentiates a bus bar from a wiring diagram in aircraft maintenance?
• In a hydraulically controlled constant-speed propeller operating within its constant-speed range at a fixed throttle, what happens when the governor spring tension is reduced by movement of the cockpit propeller control?
• Which instrument would you use to determine blade angle when servicing a propeller?
• During balancing, after uneven protective coating is applied, which action may be necessary to achieve final balancing?
• What is the purpose of a fuel jettison system, and when is it typically used?
• Which component governs the oil flow that adjusts propeller pitch in response to governor action?
• What position is a constant-speed propeller normally set in for takeoff?
• Which statement best describes the difference between an airworthiness directive (AD) and a service bulletin (SB)?
• What is a cause for rejection of wood propellers?
• Which items must be included in the maintenance record entry to show compliance with a recurring airworthiness directive?
• How is tire pressure checked differently from hydraulic system pressure?
• In which scenario is the blade angle of a constant-speed propeller expected to be greatest?
• The aerodynamic twisting force tends to turn the blades how?
• What is a aircraft's propeller system beta range used for?
• What does an aircraft's type certificate approve?
• Where can an approved alternate replacement for a severely damaged propeller be found?
• Where are the high and low pitch stops of a Hamilton Standard constant-speed propeller located?
• How is the speed of a constant-speed propeller changed in flight?
• Who issues Airworthiness Directives to correct unsafe conditions that may exist in an aircraft?
• Which document is required to be used during an inspection to ensure compliance with regulatory standards?
• Which statement best describes the main purpose of spare parts control in a maintenance shop?
• Oil and grease specifications for lubrication of propellers are determined by which party?
• The primary role of the governor flyweights is to actuate which element?
• What is the primary purpose of a circuit breaker in an aircraft electrical system?
• Which formula expresses Ohm's Law in its basic form?
• After rebuilding an engine, which party is allowed to zero-time it before returning to service?
• Which device adjusts pump performance in the propeller anti-icing system?
• What ratings is an individual required to have to conduct a complete 100-hour inspection on an aircraft and approve it for return to service?
• What is the thrust produced by a rotating propeller the result of?
• Which term describes the distance a propeller moves forward through the air during one revolution?
• What is the purpose of maintaining maintenance records (logbooks)?
• What transfers aircraft electrical power for propeller deicer systems from the engine to the propeller hub assembly?
• What is the function of the automatic propeller synchronizing system on multi-engine aircraft?
• What distinguishes a fuse from a circuit breaker in electrical protection?
• In a constant-speed propeller governor, what do the governor flyweights actuate?
• In blade station numbering, what is the order of increase?
• What is the function of electrical bonding and grounding in an aircraft?
• How is detection of cracks and other defects accomplished for propeller blades?
• Who determines oil and grease specifications for lubrication of propellers?
• Who issues Airworthiness Directives to correct unsafe conditions that may exist in an aircraft?
• What is the function of static discharge wicks on an aircraft?
• Who is primarily responsible for maintaining an aircraft in airworthy condition?
• What is done to propellers exposed to salt spray?
• Propeller blade stations are measured from which reference point?
• What documents validate an airworthiness certificate?
• What does a loop test in an electrical system verify?
• May an annual inspection be extended?
• How many hours may a 100-hour inspection be exceeded if necessary to fly to a place where the inspection can be performed?
• The low pitch stop is commonly set to which condition?
• When engine power is increased, the constant-speed propeller maintains RPM by which action?
• Airworthiness Directives must be treated in maintenance records as:
• What is the purpose of inspecting for hazards during a pre-maintenance electrical safety check?
• What is the purpose of a hydraulic reservoir drain and bleed procedure?
• Which method is typically used to correct horizontal unbalance in a wood propeller?
• What type of check is required before approving an aircraft for return to service following a 100-hour inspection?
• What is engine roughness caused by and when is it most apparent?
• In a progressive inspection program, who must supervise the inspections?
• Where is the propeller supported when balancing to measure horizontal imbalance?
• What is anodizing, and why is it used on aluminum components?
• Which power sources may supply an anti-ice/de-ice system?
• In a McCauley propeller hub, what is the purpose of filling hubs with dyed oil?
• Airworthiness Directives are...
• How is air purge confirmed in a fuel system after maintenance?
• When deferring a maintenance discrepancy, which documentation must be provided?
• Where is the blade angle of a fixed-pitch propeller the smallest?
• How do you determine whether a component should be repaired or replaced?
• Temporary maintenance records must be retained for how long, unless repeated or superseded?
• Under what conditions can a maintenance discrepancy be deferred, and what documentation is required?
• Why are critical ranges established?
• Which component transmits electrical power from stationary to rotating parts in propeller systems?
• Which document is used to record and authorize return to service of major alterations and repairs?
• What is the purpose of the pulley stop screw on a propeller governor?
• In dye penetrant inspection, what is the role of the developer after the penetrant has been applied and excess removed?
• Which forces cause blade angle changes in constant-speed counterweight propellers and two-position counterweight propellers?
• In a hydromatic full-feathering propeller, which statement describes how the feather cycle indicator behaves when completed?
• Which inspection method is used to check a steel propeller hub for cracks?
• What consequence may result from moisture remaining in avionics compartments?
• When is an alternate power source used in an aircraft electrical system?
• What FAR covers the minimum inspection requirements on an aircraft?
• Airworthiness Directives require what regarding maintenance records?
• What must be done to the remaining blade(s) if a blade of a metal propeller is shortened because of damage to the tip?
• Why is a constant-speed counterweight propeller normally placed in full HIGH PITCH position before the engine is stopped?
• What is the purpose of a cuff on a propeller?
• What is the blade movement of a propeller that is in the high RPM position when in the reversing action?
• Which document would you consult for model-specific procedures, standards, and references for maintenance tasks?
• In a Hamilton Standard constant-speed propeller, where are the high and low pitch stops located?
• What FAR requires that an inspection checklist must be used in performing an inspection on an aircraft?
• What does airframe hours indicate and how is it used in maintenance scheduling?
• Which statement correctly defines blade angle as described in the propeller system?
• In a constant-speed propeller, what happens to engine RPM when blade angle increases due to reduced governor spring tension at fixed throttle?
• An annual inspection completed on June 6, 1995 would expire on which date?
• When applying protective coating to propeller blades, what may be necessary to achieve final balancing?
• What is the role of wiring diagrams during maintenance?
• Where does the propeller governor control oil flow to and from?
• What is used to record and approve for return to service major alterations and repairs?
• How does a pitot-static system provide airspeed and altitude information?
• How does the centrifugal twisting moment of an operating propeller tend to affect the pitch angle?
• How long must temporary maintenance records be retained?
• How does the aerodynamic force acting on a rotating propeller blade operating at a normal pitch angle tend to affect the pitch angle?
• What is the role of the ground wire in a DC electrical circuit?
• Who is authorized to sign off or approve for return to service the various phases of a progressive inspection?
• What is the purpose of a hydraulic accumulator?
• When will the blade pitch angle of a constant-speed propeller be the greatest?
• What is the blade angle?
• Which personal protective equipment is appropriate for electrical maintenance?
• During takeoff, a constant-speed propeller is normally set to which condition?
• What is the purpose of filling some McCauley propeller hubs with dyed oil?
• Why is thread engagement length important for aircraft fasteners?
• Which statement best defines the purpose of a loop test in electrical systems?
• What controls the propeller in a large turboprop aircraft?
• What is blade angle?
• What is the purpose of a three-way propeller valve?
• During pre-maintenance electrical safety checks, what is the purpose of lockout/tagout power sources?
• Who can sign off or approve for return to service the various phases of a progressive inspection?
• In aircraft electrical systems, what is the function of a bus bar?
• To what engine operating conditions is the low pitch stop on a constant-speed propeller usually set?
• In the on-speed condition, what is the relationship between centrifugal force and the speeder spring force?
• Who is responsible for the maintenance and records of an aircraft?
• How can propeller aerodynamic thrust imbalance be eliminated?
• Which statement is true about the enforceability of Service Bulletins (SB) relative to rules or Airworthiness Directives (AD)?
• Which term describes the curved side of a propeller blade?
• Outline a basic electrical system ground test using a load bank.
• What are the characteristics of grease used in aircraft propellers?
• How are propeller blade stations measured?
• Which PPE is typically required when performing electrical work on an aircraft?
• How is the pitch-changing mechanism of the hydromatic propeller lubricated?
• Who must supervise a progressive inspection system on an aircraft?
• Automatic prop synchronization on most reciprocating multi-engine aircraft is accomplished by which mechanism?
• What controls the constant-speed range of a constant-speed propeller?
• What does a 'do not operate' tag indicate and what actions should be taken?
• What is the role of spare parts control in a maintenance shop?
• The operating conditions that require a 100-hour inspection are specified in which FAR?
• During the on-speed condition of a propeller, what is the relationship between the centrifugal force of the governor flyweights and the speeder spring force?
• How does the arbor used in balancing a propeller support the propeller?
• Corrosion on aluminum structures can be prevented by which methods?
• How is proper function of the feather cycle and unfeather cycle determined for an aircraft using hydromatic full-feathering propellers?
• After applying lockout/tagout, what verification should be performed before starting maintenance?
• Who may zero-time an engine after rebuilding it?
• What is the function of a placard or data plate on an aircraft component?
• How do you verify zero voltage before working on a live electrical circuit?
• Who can approve an aircraft for return to service after a 100-hour inspection has been completed?
• If the tension on the propeller governor control spring or speeder spring is increased, what happens to blade angle and RPM?