Aviation Institute of Maintenance (AIM) Block 1 Practice Test

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• Define latent heat
• The primary purpose of maintenance publications is to contain official procedures, limits, and standards for safe, compliant maintenance and airworthiness.
• What is a pilot hole, and why is it used during drilling operations?
• Define humidity.
• In weight and balance, the datum is a fixed reference point from which all arm measurements are taken.
• What is Kirchhoff's Voltage Law and why is it useful in troubleshooting electrical circuits?
• What does a slotted flap do aerodynamically?
• What are the three relevant parts involved in aircraft fundamentals?
• Ramp Weight is equal to Zero Fuel Weight plus Usable Fuel.
• Aerodynamics is the study of what?
• What is the role of stringers in semimonocoque fuselage?
• In a series circuit, how does the current behave through all components?
• What does basic empty weight mean?
• Which construction modification was developed to overcome the strength/weight problem of the monocoque?
• Which of the following lists the five types of stress?
• Air is considered what in this context?
• Atmospheric pressure is usually measured in which substance?
• What happens when a servo tab is actuated while moving the elevator?
• Which statement describes a plain flap?
• What is centrifugal force?
• In arm calculations, distances in front of the datum are negative; behind are positive.
• What is the arm in aircraft weight balance?
• What is a datum?
• Which statement about heat transfer is true?
• Comparing densities of different objects is done at what temperature?
• In flight planning, zero fuel weight is used to determine which of the following?
• What is datum and why is it used in weight and balance calculations?
• Which component is not typically part of semimonocoque fuselage?
• Which statement about control surface interaction in typical transport aircraft is accurate?
• Which term describes vertical cross-sections used on the side of the fuselage in weight and balance?
• How is a sound wave defined?
• If payload increases while all other factors remain constant, which weights will increase?
• What is a common safety practice during battery servicing to prevent hazards?
• Which option correctly describes the fuselage function in one sentence?
• Why is heat treatment of aluminum alloys important in aviation?
• Which of the following is a state of matter?
• What is the weight of one gallon of oil?
• Which of the following is a sign of corrosion that can occur under seals on aluminum airframes?
• In semimonocoque construction, loads are carried by which components?
• Which are three common methods for locking fasteners in place?
• What is the weight of one gallon of jet fuel?
• How do you identify a damaged or frayed control cable assembly and what action should be taken?
• How are load cells used to weigh an aircraft?
• Why is it essential to keep the CG within the allowable limits during loading?
• Which statement best describes leading-edge slats in relation to boundary layer behavior and lift?
• Which of the following is true about plain flaps' placement?
• Which statement best describes the relation of weighing methods?
• Which liquid is used in barometers to measure atmospheric pressure?
• Which expression correctly defines work?
• Why are wiring color codes important in aviation maintenance, and what is a key limitation?
• Which of the following safety practices correctly matches screwdriver use?
• What is the formula for work?
• What is the function of a diode in an electrical circuit?
• Density is defined as what?
• What is the specific gravity of water?
• A 1 inch column of air extending from sea level to the top of the atmosphere would weigh approximately how many pounds?
• Which term represents a position along the fuselage used to locate weights for balance?
• Water vapor weighs approximately how much compared to an equal amount of dry air?
• What is corrosion, and what are common signs in aluminum airframes?
• Earth's atmosphere is composed primarily of which percentages?
• According to FAA data, what is the approximate weight of an average adult?
• Which tab moves in the opposite direction of the flight control's trailing edge to balance inputs?
• What is essential to inspect during a preflight inspection?
• The quantity that describes how much matter is packed into a given volume is called what?
• Residual fuel and oil: which statement best describes residual fluid?
• Newton's First Law describes the behavior of an object in motion and at rest in the presence of balanced/unbalanced forces. Which statement best captures it?
• How many natural elements are there?
• Which term represents the weight of the aircraft with no payload and no usable fuel?
• Which of the following is a type of mechanical stress?
• What is the smallest particle of any element?
• The term for the balance point of an aircraft's mass is
• What is the center of gravity envelope?
• In weight and balance calculations, what is a moment?
• What is Ohm's Law and how is it used in DC circuits on aircraft?
• Which statement identifies a part not listed among the three fundamental components?
• The most abundant gas in Earth's atmosphere is which gas?
• A mass of hot air is ____ dense than a mass of cool air.
• What is the consequence of using an uncalibrated measuring instrument?
• Which of the following safety practices correctly matches pliers use?
• Why is correct torque critical on aircraft fasteners?
• Which factor is directly influenced by proper surface finish on critical airframe components?
• What is matter?
• What is the balance tab's movement relative to the flight control's trailing edge?
• What is tare weight?
• Which set contains all four forces that act on an airplane?
• For aircraft certified prior to March 1, 1978, which statement is true regarding engine oil and empty weight?
• One horsepower is equal to how many watts?
• In situations requiring high torque in a confined space, which wrench is typically preferred?
• Will heating objects cause expansion or contraction?
• In weight and balance calculations, what does an 'arm' represent?
• Which of the following is NOT a method of heat transfer?
• Pressure referenced from atmospheric pressure is known as?
• As the temperature increases, the density of a gas does what?
• Weight and Balance Theory states what about the center of gravity?
• Wing station numbers are measurements from the center line of the aircraft.
• How does revision status on a maintenance publication affect work performed?
• What is the difference between a fuse and a circuit breaker in aircraft electrical systems?
• Density is mass per unit what?
• What is the name for the smallest particle of a compound?
• What is the SI unit of work?
• How do you perform a continuity check using a multimeter?
• If an aircraft is overloaded, which performance change occurs?
• Which line is used to describe vertical location points along the fuselage for measurements on the surface?
• What is a common hazard when servicing aircraft batteries and what safety precautions should be taken?
• Which instrument is specified for leveling during weighing?
• What is the moment for a weight item in CG calculations?
• What is Lockout/Tagout and why is it essential in aviation maintenance?
• What percent of Earth's atmosphere is oxygen?
• Which statement describes a feeler gauge?
• What is a primary benefit of using a standardized maintenance checklist for technicians and students?
• What is the approximate specific gravity of air?
• What is the primary purpose of maintenance publications provided by manufacturers and regulatory authorities?
• What is the purpose of a weight-and-balance worksheet?
• What is calibration and why is it important for measurement tools?
• Which of the following is NOT a listed type of stress?
• Besides nitrogen and oxygen, approximately what fraction of the atmosphere is made up by all other gases combined?
• How would you best define a fly-by-wire system?
• Butt lines extend parallel to the longitudinal axis and are located on the fuselage.
• Why is a maintenance checklist essential in aviation maintenance?
• According to flap comparisons, which statement is true about split flaps relative to plain flaps?
• Which statement is true about the unit for work?
• Which of the following safety practices correctly matches wrenches use?
• CG stands for
• What is the fuselage in an fixed-wing aircraft?
• The Fowler flap is characterized by which mounting arrangement?
• Which formula converts Fahrenheit to Celsius?
• Which method of heat transfer occurs without a medium?
• Moment in weight and balance is defined as what?
• What is non-destructive testing (NDT) and provide a simple example?
• Which formula expresses force in terms of area and pressure?
• What is the primary difference between rivets and bolts in aircraft construction?
• Which of the following are the building blocks of atoms?
• Where are leading-edge slats typically used and what is their effect?
• What is the acronym for the formula for finding fluid forces?
• A datum in aviation is defined as
• As altitude increases, what happens to air density and how does that influence flight characteristics?
• What is a split flap and its effect on the wing?
• Why does high humidity reduce airplane performance?
• How do you compute the center of gravity using weight and moment data on a balance sheet?
• Dew point is defined as the temperature to which humid air must be cooled to become saturated at constant pressure.
• If too much weight is forward of the center of gravity, what is a likely result?
• Which is an example of potential energy?
• Why is surface finish important in critical airframe components?
• What is the function of the datum in weight and balance?
• What is a feeler gauge used for in aircraft maintenance?
• Which of the following is NOT a temperature scale?
• Because air is a mixture of gases, it can be described as being which of the following with respect to compression?
• Pressure referenced from zero pressure is known as?
• If a component has an arm of 1.5 meters and a weight of 320 newtons, what is the moment?
• What is the most basic of all things in physics?
• What does a basic preflight electrical system check typically include?
• Which items are not included in basic empty weight?
• When you double the pressure, the density of a gas does which of the following?
• Water vapor weight relative to dry air is approximately:
• Where is a full-length anti-servo tab installed on many aircraft?
• Latent heat describes energy transfer during a phase change; which statement is true?
• Absolute humidity refers to which of the following?
• Standard day at sea level includes which temperature and pressure values?
• Which list correctly identifies the three physical states of matter?
• In circular motion, what force acts toward the center to keep the object moving in a circle?
• Which of the following is an example of kinetic energy?
• In a monocoque fuselage, the primary loads are carried mainly by what?
• In semimonocoque construction, which member combination carries loads?
• Longerons in fuselage design are described as:
• How do you read a caliper to determine a dimension?
• Which statement correctly identifies how a fuse differs from a circuit breaker?
• Longerons in semimonocoque contribute to loads by:
• How do you properly read a micrometer to measure a small external dimension?
• Which construction uses skin primarily with internal members to bear loads?
• During preflight, which item is typically checked to ensure there are no detrimental conditions in the electrical system?
• What is the purpose of corrosion inhibitors and protective coatings in maintenance?
• What is the purpose of wiring diagrams and schematics in aviation maintenance?
• Absolute humidity defines:
• Relative humidity defines:
• Which practice helps prevent foreign object damage (FOD) in maintenance areas?
• What is a torque sequence and why is it important for multi-bolt assemblies?
• Controlling paint thickness on aircraft surfaces primarily affects which aspects?
• Takeoff Weight is calculated as Ramp Weight minus Fuel Used for Start, Engine Run Up and Taxi.
• Name two common power sources for aircraft electrical systems.
• What is the purpose of scheduled inspections such as 100-hour or annual?
• Differentiate between series and parallel circuits in terms of current and voltage distribution.
• Which of the following is NOT typically used as a location reference in weight and balance?
• Which formula converts Celsius to Fahrenheit?
• Which statement about the speed of sound in the atmosphere is true?
• Which option is NOT one of the fuselage types listed, by name?
• Standard sea-level pressure in millibars is approximately:
• What does a maintenance blueprint's title block typically include?
• In transport aircraft, how are control surfaces typically used during most flight configurations?
• The vertical axis is called which?
• Which is listed as an additional power source for aircraft electrical systems when needed?
• What is the purpose of a grounding path in aircraft electrical systems?
• Which statement best describes how wing shape affects flight characteristics?
• How is weighing performed with platform scales?
• Compared with air at low altitude, air at high altitude is:
• What is the primary reason designers choose semimonocoque over monocoque?
• Which device measures the property known as specific gravity?
• What are common features to check when reading a blueprint or maintenance drawing?
• Stringers in semimonocoque fuselage are best described as:
• How should sealants and threadlockers be applied to fasteners?
• Which weight term is typically the final weight upon landing?
• At sea level, the mercury in a column barometer measures how many inches?
• Spring tabs move in conjunction with which control surface?
• Where are vortex generators usually attached on a wing?
• Which statement best describes the difference between open-ended and box-end wrenches?
• Relative humidity measures what?
• What is the typical consequence of neglecting to recalibrate measurement tools after repairs?
• What is the approximate weight of one gallon of average fuel?
• What equals Zero Fuel Weight?
• In semimonocoque, what provides form or shape along with being lighter?
• Induced drag is caused by
• What is the function of an anti-servo tab?
• In flight planning, zero fuel weight is defined as what?
• How many types of flaps are listed in the material?
• What is centripetal force?
• Spring tabs are attached to the trailing edge of which control surface?
• Which term best describes a fuselage where the skin is primary but reinforced?
• What is the location ID on an aircraft used as the reference point for weight and balance calculations?
• Center of gravity is the point about which the nose-heavy and tail-heavy moments are equal.
• Takeoff Weight is calculated as Ramp Weight minus Fuel Used for Start, Engine Run Up and Taxi.
• Dew point is defined as:
• When working in a confined space with limited room for turning, which wrench type is typically used?
• Under FAR 23, which statement about engine oil and empty weight is true?
• The loading distribution in semimonocoque is best described as:
• Which statement best defines a truss fuselage?
• What is a datum plane in weight and balance calculations?
• Which information is primarily used on a weight-and-balance worksheet to verify CG limits?
• Spring tabs are used for the same purpose as hydraulic actuators.
• Which instrument is used to level the aircraft during weighing?
• Which list contains the three fuselage types mentioned?
• What is the role of a Safety Data Sheet (SDS) in aviation maintenance?
• What term describes the energy due to motion of an object?
• What device measures the specific gravity of a liquid?
• For conventional or tail-wheel aircraft, how should the tail be positioned during weighing according to leveling guidelines?
• Density is defined as which of the following?
• If too much weight is aft of the center of gravity, which statement is true?
• Which statement best defines potential energy?
• Define work in physics.