ASA Aviation Maintenance Technician General Practice Test

These questions are part of the practice quiz. Start practicing

• Why is it important that the surface of clad aluminum alloy not be scratched?
• The flow of electrons in a circuit is measured by which instrument?
• Is the size of a flexible hose determined by its inside diameter or its outside diameter?
• Which statement best describes an installation drawing?
• Which tool would you use to measure the outside diameter of a shaft?
• Which statement describes how to determine the sign of the sum when adding signed numbers?
• When towing an aircraft with a steerable nose wheel, what might be required regarding the nose wheel torsion links?
• What is a sector?
• What is meant by continuity in an electrical circuit?
• During the preceding 24 months, how many months of experience are required to be eligible to exercise the privileges of the certificate?
• What is the cube of 5?
• Which statement correctly defines a large Calorie (Calorie)?
• What is autorotation in a helicopter?
• What is the procedure if a hung start occurs when starting a turbojet engine?
• Why are the distances measured from a datum in weight and balance calculations?
• How is steel annealed?
• Where do you find the arm of an item installed on an aircraft?
• If a conductor is twice as long, what happens to its resistance?
• What is started for a new aircraft when empty weight and empty weight center of gravity are determined if no weight and balance records exist?
• What certificate and ratings are required for a mechanic to conduct an annual inspection and approve the aircraft for return to service?
• What is done with the aircraft maintenance records that include the current status of the applicable Airworthiness Directives when the aircraft is sold?
• What is meant by the datum that is used for weight and balance computations?
• Which protective method is commonly used to prevent corrosion on structural aluminum alloy?
• Stress corrosion cracking is most likely to occur in which scenario?
• Which of the following is an example of heat transfer by convection?
• Who issues a service bulletin and what is its purpose?
• What is the effect of higher density altitude on engine performance?
• Which document would you consult to locate the official data that verifies an aircraft design’s airworthiness status?
• How is a steel structure normalized after welding?
• Which statement is true regarding AVGAS labeling for reciprocating-engine fuel fillers?
• What is the primary purpose of a Minimum Equipment List (MEL)?
• What will happen to the pressure of a confined gas if the temperature of the gas is increased?
• Which description correctly defines a small calorie?
• What is recommended for cleaning transparent plastic windshields and windows?
• Which statement correctly identifies a neutralizer for nickel-cadmium battery electrolyte spilled on aircraft structures?
• What is the primary function of a hydrometer in battery maintenance?
• How may thermal runaway be prevented?
• Which inspection method would be most appropriate for checking a steel landing gear component for stress cracks?
• Which item is included with an assembly drawing to identify components?
• What is voltage?
• What is the Celsius equivalent of a temperature of 50ºF?
• In aircraft hydraulic systems, which component is commonly connected by lines that use quick-disconnect couplings?
• Notification to the FAA after a permanent address change must be submitted within how many days?
• What is the square root of 4,096?
• Where is the center of gravity for most airplanes located in relation to the center of lift?
• If you ask which term is the vector sum of the components of AC opposition, the answer is:
• Where can you find a list of the basic items that must be inspected on a 100-Hour inspection?
• What document would you use to find the part number for a landing light bulb for an airplane?
• What is the purpose of permanent ballast?
• Which quantities are the elements of Ohm's Law?
• What happens to aluminum after solution heat treatment and quenching?
• Which instrument is typically used to measure the runout of a crankshaft?
• When routing a fluid line parallel to an electrical wire bundle, which should be on top?
• For how long must the record of a 100-hour inspection be kept?
• What is the purpose of 14 CFR Part 43?
• Which statement about fretting corrosion is true?
• How much work will one Btu of heat energy perform?
• Which instrument is used to measure electrical resistance?
• What is the fulcrum of a lever?
• What happens when the airflow exceeds the critical angle of attack?
• What is the basic unit of heat in the English system?
• Which has the more critical center of gravity range?
• What is the cube root of 1,000?
• What document would you use to find an approved repair for a damaged wing spar?
• A triangle on the head of a steel bolt indicates which of the following?
• What should be done to the end of a tube that is to be flared?
• Which additional authorization is required beyond a standard mechanic certificate to perform annual inspections?
• In a parallel DC circuit, how does current divide?
• What are three methods of heat transfer?
• What is the difference between speed and velocity?
• What is meant by pressure?
• What four things affect the resistance of an electrical conductor?
• What is meant by the capacity rating of a lead-acid battery?
• Why is the empty weight center of gravity range not given in the Type Certificate Data Sheets for some aircraft?
• What is a channel nut?
• What are two types of fluids?
• Does an inductor cause current to lead or lag voltage in an AC Circuit?
• Who is authorized to approve an aircraft return to service after a minor alteration performed on the airframe?
• Which publication lists the standard hand signals used for taxiing an aircraft?
• In the designation MS20470 AD-4-6, what does AD stand for?
• Which nondestructive inspection method would be used to examine the internal structure for corrosion in a wing?
• What is the significance of the empty weight center of gravity range?
• Which statement best describes a parallelogram?
• In an aircraft with a reciprocating engine, what information must be located near the fuel tank filler opening?
• If a technician changes their permanent address, the FAA notification must be submitted within what time frame?
• What is the basic wood used for aircraft wing spars?
• How do you find the moment of an item on an aircraft?
• What does scientific notation describe?
• What damage is likely to occur if an aircraft reciprocating engine that is designed to use grade 100 fuel is operated with grade 80 fuel?
• Who is authorized to approve an aircraft return to service after a major repair?
• What precaution must be observed regarding tools used when servicing an aircraft oxygen system?
• What is recorded after weighing the aircraft to determine its empty weight and empty weight center of gravity?
• Which precision tool is used to measure piston ring side clearance?
• In a DC circuit, if the voltage increases while resistance remains constant, what happens to the current?
• Which publication lists the standard hand signals used for directing a taxiing aircraft?
• Which type of composite material is used when stiffness is the prime requirement?
• After cleaning aluminum to remove corrosion, what is applied to protect the surface?
• Which statement accurately describes the FAA notification requirement after a permanent address change?
• How much force is produced by 1,000 psi of hydraulic pressure acting on a piston with an area of 20 square inches?
• Which cable type should be used when pulleys change the direction of cable travel?
• Which of the following is a correct first-class lever example?
• Which publication contains the NPRM for Airworthiness Directives?
• What is meant by relative wind with regard to an airfoil?
• What is used to clean transparent plastic windshields and windows of an aircraft?
• Which statement describes the role of the nickel-cadmium electrolyte during charging and discharging?
• In orthographic projection, how many views can there be?
• Tetraethyl lead in aviation gasoline serves as a lubricant for which engine component?
• What is the purpose of an Airworthiness Directive (AD)?
• Who is authorized to perform preventative maintenance on an aircraft not flown under Part 121, 127, 129, or 135?
• What is meant by the absolute humidity of the atmosphere?
• Which tools are used to measure the inside diameter of a cylinder?
• What is the relationship between mechanical power and electrical power?
• What is meant by case hardening?
• What is the basic unit of inductance?
• During forward flight, which blade has greater lift and why?
• What tests are used to demonstrate that a mechanic applicant meets the minimum skill requirements?
• How would you define a polygon?
• Which component stores energy in magnetic fields?
• The fuselage station distance is measured in which unit?
• What is meant by resistance in an electrical circuit?
• Which FAA publication describes methods of nondestructive testing?
• Precipitation heat treatment is also known as what?
• Why must the aircraft and the fuel truck be grounded together before fueling?
• What must be done to determine the aircraft's empty weight if the aircraft has been weighed with fuel in its tanks?
• What electrolyte is used in a lead-acid battery?
• If the length of a conductor is doubled with all other parameters unchanged, how does the current change?
• In a series DC circuit, how does current flow?
• What is the square of 99?
• What inspection method would be most appropriate for checking a nonferrous metal part for intergranular corrosion?
• What is the purpose of the butt line in aircraft drawings?
• In the identification number 91-08-07 R1, what does R1 signify?
• What is the specific gravity of a fully charged lead-acid battery?
• What is meant by precipitation heat treatment of aluminum alloy?
• Why is a hydrometer not used to measure the state of charge of a nickel-cadmium battery?
• What is the function of the lay line that runs the length of a flexible hose?
• In a scenario where a second-class lever is used, which device serves as the classic example?
• What is the basic unit of voltage?
• What is ground effect in helicopter flight?
• Is there a Federal Regulation requiring that all private aircraft be reweighed periodically?
• Describe the solution heat treatment process for aluminum alloy.
• Which tools are appropriate for removing corrosion from aluminum alloy?
• What is meant by a temperature of absolute zero?
• Which formula computes the volume of a rectangular solid?
• What is meant by the density of air?
• What is the principle of eddy current inspection?
• Impedance describes opposition to which current?
• Impedance is measured in what units?
• Dissimilar metal corrosion is most likely to occur in which situation?
• What is apparent power in an AC circuit?
• Which formula gives the area of a circle in terms of radius?
• Which of the following statements correctly describes the left-hand rule for determining magnet polarity?
• What is meant by the maximum zero fuel weight of an aircraft?
• Describe the method of solution heat treatment of an aluminum alloy.
• What is true power in an AC circuit?
• What is a block diagram?
• What is the effect of precipitation heat treatment on aluminum alloy?
• What is the electrolyte used in a nickel-cadmium battery?
• When measuring resistance of a component with an ohmmeter, should the circuit be energized?
• How can you distinguish AN fluid line fittings from AC fittings?
• What is the purpose of a sketch of a repair?
• In the rivet designation MS20470 AD-4-6, what does 4 indicate?
• How is steel nitrided?
• In the designation AN6-14A, what does the '6' indicate?
• What is a quadrant?
• What inspection method would be most appropriate for checking the internal structure of an airplane wing for corrosion?
• Which term refers to the force that acts opposite to thrust in the airflow over a wing?
• What is a right triangle?
• Which of the following describes the relationship used in the power factor definition?
• In a lead-acid battery, how does electrolyte density relate to the charge state?
• What is meant by a progressive inspection?
• What is a result of cell imbalance in a nickel-cadmium battery?
• What is the minimum amount of slack that must be left when a flexible hose is installed in an aircraft hydraulic system?
• What can be used to repair the anodized surface of an aluminum alloy part?
• If the pressure remains constant and the volume increases, what happens to the temperature?
• How many views are used to show most objects in an aircraft drawing?
• What is detonation in an aircraft reciprocating engine?
• Which document would you use to find the control surface movement for a specified airplane?
• What does density measure in a fluid?
• What is the first step in issuing an Airworthiness Directive (AD)?
• Which of the following is a unit of electrical resistance?
• How is information on an AD disseminated?
• What is the danger of using fuel that vaporizes too readily?
• What is the alloy number of the most commonly used aluminum alloy for aircraft structural use?
• If three identical resistors are connected in parallel across a 12 V source, what is the current through each resistor?
• What type of experience is required to take the tests for mechanic certification?
• What can be used in place of the 30 months of experience to qualify to take the mechanic tests?
• Which expression represents 0.00052 in scientific notation?
• What is the proper nondestructive inspection to locate surface cracks in an aluminum alloy casting or forging?
• In the identification number 91-08-07 R1, what does 08 signify?
• What gases are released when a lead-acid battery is being charged?
• How can you tell when a self-locking nut must be discarded?
• What determines the size of the tip to use when gas-welding steel?
• At constant pressure, what happens to air density when temperature increases?
• What does specific gravity compare?
• Which are the five sources of electrical energy?
• Which formula expresses current I when voltage E and resistance R are known?
• What is the first law of thermodynamics?
• What happens inside a solid material when it absorbs heat energy?
• How are dimensions shown on an aircraft drawing?
• Where must a record be kept of the current empty weight and the current center of gravity of an aircraft?
• Delay in quenching after solution heat treatment can lead to what type of corrosion?
• Which statement correctly describes the AN6-14A bolt?
• Which statement about preventing thermal runaway is most accurate?
• What equipment must be installed in an aircraft when weighed to determine its empty weight center of gravity?
• Which of the following is an example of heat transfer by conduction?
• Which statement about a loading envelope is true?
• What happens to the molecules inside a solid when heat energy is added?
• What is used to neutralize the electrolyte from a lead-acid battery that has been spilled on an aircraft structure?
• Which statement correctly describes air density and density of air?
• What publication lists all of the ADs that apply to aircraft, engines, propellers, or appliances?
• Which set correctly lists a first-class, a second-class, and a third-class lever?
• In what units is apparent power expressed?
• What term is used for the fuel that remains in the tanks and lines after draining?
• What is the base of the expression 10^3?
• Which statement about a hexagon best matches the source material?
• What three things must an electric circuit contain?
• What action should be taken if a hung start occurs on a turbojet engine?
• Using Ohm's law, if the voltage doubles while resistance remains constant, what happens to the current?
• What term describes a polygon with four sides?
• What is the cube of 2?
• What is meant by weight?
• Which statement best describes who must personally perform a 100-hour inspection?
• What is the second law of thermodynamics?
• Why is the closed-circuit voltage of a lead-acid battery lower than its open-circuit voltage?
• In Ohm's Law, which quantity represents voltage?
• In a fixed-volume container, which statement best describes heating a gas?
• What is the usual proof-test pressure relative to operating pressure for a flexible hose assembly?
• Where do you find the leveling means that are specified for a particular aircraft?
• What best describes a parallelogram?
• Which timeframe is specified for notifying the FAA after a permanent address change for a mechanic certificate holder?
• In a lead-acid aircraft battery, what does the electrolyte specific gravity indicate?
• Filiform corrosion is most likely to occur under which condition?
• What is the basic unit of current flow?
• What causes ice to change into liquid water?
• If a turbine fuel contamination occurs and a borescope inspection is performed, which component should be inspected?
• Intergranular corrosion is most likely to occur along which part of aluminum alloys?
• Which document would you use to verify the official part numbers and the exact replacement assemblies for components?
• What damage can overtightening an MS flareless fitting cause?
• What is a butt line?
• What is an approved Flight Manual (AFM) or Pilot's Operating Handbook (POH)?
• What is the volume formula for a cylinder using diameter?
• When performing a 100-hour inspection on an airplane, why is it necessary to refer to the Type Certificate Data Sheet (TCDS)?
• What kind of measuring instrument is used to measure the runout of an aircraft engine crankshaft?
• Which formula is used to find the area of a rectangle?
• What is meant by the stagnation point of an airfoil?
• Why shouldn't electrolytic capacitors be used in an AC circuit?
• Which process diffuses carbon into the surface to harden it?
• Which alloy number corresponds to a high-strength aluminum alloy that uses zinc as an alloying component?
• Within a 24-month period, what is the minimum number of months of experience required to exercise the privileges of the mechanic certificate?
• What is meant by moment in the computation of weight and balance?
• What does a Megawatt represent?
• Which number is the base in the expression 7^4?
• What type of inspection is best suited for detecting a fault within a piece of nonferrous metal?
• What is used to neutralize spilled electrolyte from a lead-acid battery?
• Which of the following is a unit of heat in the English system?
• Which feature runs along the length of a flexible hose to indicate twisting during installation?
• What is the eighth power of 2?
• Which of the following best describes how permanent ballast is used?
• What is meant by a percentage?
• What is the total resistance of three 12-ohm resistors connected in series?
• During solution heat treatment of aluminum alloy, after the material is heated to the proper temperature for the specified time, what is the next step?
• Cotter pins are made from which two materials?
• What formula is used to find the amount of work done when an object is moved across the floor?
• How many cubic inches of fluid is forced out of a cylinder by a piston with an area of 20 square inches, when the piston moves five inches?
• The angle of attack is defined as the acute angle formed between which two lines?
• Ground resonance involves which component's oscillation and what potential outcome?
• What is the name of the law that describes the relationship in an electrical circuit of voltage, current, and resistance?
• What is meant by matter?
• What is meant by thrust?
• What is blade stall of a helicopter rotor?
• What is the minimum age for a mechanic certificate?
• Rivet code D corresponds to which aluminum alloy?
• The 100-hour inspection items list is located in which regulation?
• What are two methods of case hardening?
• How tight should an MS flareless fitting be tightened?
• Which statement correctly describes the unit used for distance in moment calculations?
• What is the formula for power in a DC circuit?
• Is the electrolyte of a nickel-cadmium battery lowest when the battery is fully charged or fully discharged?
• What is meant by the critical angle of attack?
• Ground effect is caused primarily by which aerodynamic change?
• A megaohm equals how many ohms?
• What is another name for precipitation heat treatment?
• What is the total resistance of three 12-ohm resistors connected in parallel?
• Who is authorized to rebuild an aircraft engine and issue a zero time maintenance record?
• The substitution of a 30-month experience requirement with a completion certificate is allowed when applying for mechanic tests.
• To be eligible to exercise the privileges of the mechanic certificate within the last 24 months, how many months of experience are required?
• Are instructions in the Federal Regulations mandatory or optional?
• When starting an aircraft engine equipped with a float carburetor, in what position should the carburetor heat control be placed?
• What material separates the two conductors inside a capacitor?
• Which of the following is not considered a traditional method of heat transfer?
• What instrument is used to measure the specific gravity of the electrolyte in a lead-acid battery?
• Which statement best describes the fluids used in hydraulic versus pneumatic systems?
• The equivalent resistance of three 12-ohm resistors in parallel is 4 ohms. With a 12 V source, what is the total current drawn by this network?
• What type of device is used to remove surface corrosion from a magnesium alloy?
• What is meant by tempering steel?
• What is the significance of the identification number 91-08-07 R1?
• Which statement about the triangle on the bolt head is correct?
• What is meant by the power factor in an AC circuit?
• Reactive power is also called
• If a rectangle has length 3 and width 4, what is its area?
• Is it mandatory that the information in an AD be complied with?
• What is used as a reference point from which all horizontal distances are measured in weight and balance calculations?
• What are the four steps in making a sketch?
• Which aluminum alloys are used for icebox rivets?
• What is the primary purpose of precipitation heat treatment in aluminum alloys?
• Why is quenching required immediately after removing a piece from the heat-treating oven?
• How should flux be removed from aluminum that has been gas-welded?
• Ground effect is observed at what altitude relative to rotor span?
• Why is it important to demagnetize engine parts after they have been inspected by magnetic particle methods?
• What is meant by the arm of an item installed in an aircraft?
• Which statement describes a trapezoid?
• What is meant by permanent ballast for an aircraft?
• In preparing weight and balance, the 'arm' value is essential for calculating what?
• What are aircraft specifications?
• Which statement accurately describes an isosceles triangle?
• When an aircraft is sold, which records must accompany the aircraft?
• Which fuel is used in turbine engines?
• What helps verify that a drawing is the most recent version apart from the revision block?
• Which device stores energy in electromagnetic fields and has the unit Henry?
• What is the open-circuit voltage of a lead-acid cell?
• In what unit is true power expressed?
• What is the purpose of a capacitor?
• Instructions for Continued Airworthiness are documents prepared by which party and approved by the FAA?
• To clear liquid lock in a cylinder, which action is performed?
• What is meant by the root of a number?
• Specific gravity equals the ratio of a fluid's density to the density of which substance?
• What is the effect of high humidity on piston engine performance?
• Which result is correct for the area of a triangle with base 8 and height 3?
• What is meant by liquid lock in the cylinder of an aircraft engine, and how is it cleared?
• What type of aircraft drawing is most helpful in troubleshooting a system?
• Which data sheet contains arm data for installed items on an aircraft?
• If turbine fuel is inadvertently put into a reciprocating engine's fuel tanks and the engine is run, what steps should be taken to correct the situation?
• Which instrument is used to measure the outside diameter of a rocker arm shaft?
• What are two reasons weight and balance control are important in an aircraft?
• What is ground resonance in a helicopter?
• Why is it important not to mix turbine fuel with aviation gasoline used in an aircraft with a reciprocating engine?
• What does a Supplemental Type Certificate (STC) authorize in aviation?
• What is impedance in AC circuits?
• What is meant by a right angle?
• In an AC circuit, does a capacitor current lead or lag voltage?
• Which statement correctly identifies the two primary units for atmospheric pressure at sea level in this context?
• Why do most metals expand when they are heated?
• How far ahead of an idling turbojet engine does the danger area extend?
• Which statement correctly describes the root cause of thermal runaway in nickel-cadmium cells?
• Which of the following is an example of heat transfer by radiation?
• What type of knot is used for securing an airplane with a rope?
• Which statement is true regarding FAA notification after updating a permanent address?
• What condition can prevent penetrant from seeping into a flaw during a dye penetrant inspection?
• In the designation AN6-14A, what does the '14' indicate?
• Which principle is the basis for ultrasonic inspection?
• How does filiform corrosion typically appear on an aircraft structure?
• Which of the following defines a quadrilateral?
• What two things happen when current flows through a conductor?
• Which option best describes the experience requirement to exercise the privileges of a mechanic certificate within the last two years?
• Where would you find the empty weight of an airplane?
• What kind of rigid tubing can be flared with a double flare?
• In what units is battery capacity expressed?
• Which statement correctly defines a scalene triangle?
• What best describes a detail drawing?
• Where is filiform corrosion most likely to occur on an aircraft?
• What are the two ratings that can be issued to a mechanic certificate?
• Filiform corrosion typically appears under the film of which finish system components?
• May the data in an aircraft maintenance manual be used as approved data for an aircraft repair?
• Where are quick-disconnect fluid line couplings normally used in an aircraft hydraulic system?
• What is meant by permanent ballast for an aircraft?
• In a DC circuit with 12 V and 2 A, the power is:
• What is meant by the center of gravity range?
• How may rust be removed from a highly stressed metal part?
• How is the correct grip length of a bolt used in an aircraft structure determined?
• What document lists the leveling means used for an aircraft?
• What is a polygon?
• What is meant by inductance?
• What is tare weight?
• What is meant by air density?
• What is translational lift in a helicopter?
• For a clevis bolt that attaches a cable fitting to a control surface horn, how tight should the nut be?
• How high should the electrolyte level be in a properly serviced lead-acid battery?
• Which term describes the portion of a circle bounded by two radii and an arc?
• Instructions for Continued Airworthiness are described in which CFR section?
• What is the purpose of General Aviation Airworthiness Alerts?
• Which formula expresses the area of a circle using diameter?
• How can you determine that the aircraft drawing you are using is the most current version?
• What solvent is recommended for removing grease from aircraft fabric prior to doping it?
• Which type of drawing shows the overall function of a system without detailing components?
• What documentation is required for a certificated aircraft to legally operate on automotive gasoline?
• A voltmeter is connected to measure voltage in a circuit. In which configuration should it be connected?
• Which quantity is included in empty weight that some may overlook?
• Where would you find the dimensional tolerances for the wrist pin fit in an aircraft engine?
• Where is the title block normally located on an aircraft drawing?
• What are the two most commonly used rivet heads?
• Which statement correctly describes AN vs AC fittings?
• What is the square root of 144?
• What is used to neutralize the electrolyte from nickel-cadmium battery that has been spilled on an aircraft structure?
• Which description defines an obtuse angle?
• In the designation AN6-14A, what does the suffix 'A' indicate?
• What is the exponent in the expression 10^3?
• What action should a mechanic take while taxiing on a runway if the tower directs a flashing red light at him?
• Which type of control cable must be used when pulleys change the direction of cable travel?
• In weight and balance, the moment is the product of weight and distance. If weight is measured in pounds and distance in inches, what are the units of moment?
• What is meant by a ratio?
• When should an aircraft be reweighed?
• What is the proper way to extinguish an induction system fire that occurs when starting a reciprocating engine?
• To exercise the privileges of a mechanic certificate, a technician must have at least how many months of experience within a 24-month period?
• Which tools are used to measure the inside diameter of a small hole?
• In the identification number 91-08-07 R1, what does 91 signify?
• To perform a 100-hour inspection, a mechanic must hold which ratings on their certificate?
• AC 43-13-1B is associated with which part of the CFR?
• Which law relates voltage, current, and resistance in a simple circuit?
• The ampere is the base unit for which electrical quantity?
• Three resistors are in series and the total current is 3 amps. How much current flows through each resistor?
• Does circular magnetization detect faults across or lengthwise in a part?
• What is an example of an inductor used in a magneto?
• What is meant by undrainable fuel?
• What is meant by the mean aerodynamic chord (MAC)?
• Which entity approves a progressive inspection schedule?
• What are three types of DC circuits with regard to the placement of the various circuit components?
• What is meant by a proportion?
• What is the voltage across each resistor connected in parallel to a 12-volt battery?
• What causes ice to melt?
• Is an ammeter placed in series or parallel to measure current?
• What is the difference between the flare angle for aircraft and automotive fittings?
• How is information on an emergency AD sent to the owner or operator?
• How should you treat a lead-acid battery compartment to protect it from corrosion?
• Which item is NOT typically included in the drawing block of an aircraft part?
• How much pressure is used to proof-test a flexible hose assembly?
• What certificate and ratings are required for a mechanic to conduct a 100-hour inspection and approve the aircraft for return of service?
• What are the three basic physical states in which matter can exist?
• In magnetic particle inspection, what is the function of the indicating medium?
• A triangle with all angles less than 90 degrees is called what?
• What tests are used to demonstrate that a mechanic applicant has the proper knowledge?
• What is the voltage across a 6 Ω resistor when the current is 2 A?
• Which instrument is used to determine the state of charge by measuring the electrolyte's density in a lead-acid battery?
• What special precautions should be taken when towing an aircraft that has a steerable nose wheel?
• In MS20470 AD-4-6, what does 6 represent?
• In a right triangle, which side is the hypotenuse?
• A mechanic certificate holder who changes address must notify the FAA within what time frame?
• If the electrolyte specific gravity reads 1.200, what does this indicate about the battery's charge state?
• What is the basic unit of heat in the metric system?
• Self-tapping sheet metal screws are used to hold what onto an aircraft?
• Which aluminum alloy is used for low-pressure rigid lines?
• What is a megaohm?
• What FAA publication describes methods of nondestructive testing?
• Which instrument arrangement is used to measure the inside diameter of a cylinder?
• Rigid fluid lines carrying high-pressure (3,000 psi or greater) hydraulic fluid should be made from which material?
• Extruded aluminum alloy is particularly susceptible to which type of corrosion?
• How is steel hardened?
• The engine rebuild and zero time maintenance record: who is authorized to issue it?
• To remove surface corrosion from aluminum and prevent further damage, which sequence is recommended?
• What is the standard sea level atmospheric pressure expressed in inches of mercury and in pounds per square inch?
• What type of fabric is most widely used for covering aircraft structures?
• What determines the mechanical advantage of a system of ropes and pulleys?
• If a rectangle has length 5 and width 7, what is its area?
• What is the approximate value of the constant π?
• Describe the way you would find the empty weight and empty weight center of gravity of an airplane if there are no weight and balance records available.
• In any 24-month period, the minimum months of experience to exercise the privileges of the certificate is at least how many months?
• What torque profile should you follow for MS flareless fittings?
• What is used to keep corrosion from forming on structural aluminum alloy?
• Within the last 24 months, the minimum experience to exercise the privileges of a mechanic certificate is at least how many months?
• What happens to aluminum after solution heat treatment as it ages?
• What loading should be avoided when using a self-locking nut on an aircraft bolt?
• What is used to neutralize spilled electrolyte from a nickel-cadmium battery?
• Which term describes one fourth of a circle?
• A triangle with one angle greater than 90 degrees is called what?
• Which change to an aircraft would trigger reweighing for weight and balance?
• What labeling must appear near the reciprocating-engine fuel filler regarding fuel grade?
• Which combination of instruments is used to measure the fit between a rocker arm shaft and its bushing?
• Which number is the exponent in the expression 7^4?
• What is the smallest size of cable allowed in the primary control system of an aircraft?
• What grade of aviation gasoline is dyed blue?
• What does an assembly drawing show?
• After a permanent address change, a holder of a mechanic certificate must notify the FAA within how many days?
• Where is the maximum allowable gross weight found?
• In Ohm's Law notation, E denotes which quantity?
• If the electrolyte temperature is outside the 70º F to 90º F range, should a temperature correction be applied when measuring the specific gravity?
• What is meant by reactive power in an AC circuit?
• What is the smallest division read by a vernier micrometer caliper?
• Which head mark indicates 2024-T aluminum alloy?
• What is an equilateral triangle?
• Which document specifies the type of fuel that should be used in an airplane?
• What is a loading envelope?
• How can you get information on subscribing to the Airworthiness Directives?
• Which statement describes a trapezoid?
• If a mechanic needs to confirm the inside diameter of a small hole, which pair of tools is appropriate?
• Which action requires an Inspection Authorization?
• In empty weight calculations, which items are considered part of the empty weight?
• What must be done to a welded joint if it must be rewelded?
• What is the temperature range of the electrolyte in a lead-acid battery that does not require a correction when measuring its specific gravity?
• What describes the significance of the constant Pi?
• Which of the following describes the procedure for magnetic particle inspection?
• What determines the size of a rigid fluid line?
• What is the purpose of a minimum equipment list (MEL)?
• What is an installation drawing?
• What does a Kilowatt represent?
• Which sequence correctly describes precipitation heat treatment steps?
• What is meant by the resonant frequency of an aircraft structure?
• Where must the current empty weight and CG records be kept?
• In a lead-acid battery, how does electrolyte specific gravity change with state of charge?
• What is meant by a moment index?
• Who is authorized to perform an annual inspection on an aircraft?
• What is the smallest diameter allowed in a primary control system cable?
• Reactive power expressed in which unit?
• Which statement best expresses the First Law of Thermodynamics?
• What part of an amp is a milliamp?
• Which expression represents the area of a triangle using base B and height H?
• In eddy current inspection, which material properties determine the amount of induced current?
• Which CFR parts are referenced for the AFM/POH?
• A mechanic with a permanent address change must notify the FAA within how many days?
• How does increasing temperature affect density altitude?
• Jet-A fuel characteristics include which of the following?
• What is the recommended finish on the end of tubing before flaring to avoid cracks?
• What instrument is used to measure voltage?
• Which sequence correctly describes the dye penetrant inspection steps?
• In orthographic projection, how many views are typically used to represent most objects?
• What is meant by minimum fuel as used in weight and balance computations?
• For turbine engine fueling systems that use pressure fueling, what pressures must be specified near the fuel filler?
• What is meant by a negative number?
• What instrument is used to measure continuity in an electrical circuit?
• Which example illustrates heat transfer by radiation?
• In ultrasonic inspection, which statement correctly describes why faults are detectable?
• Which of the following is an example of heat transfer by conduction?
• Which composite material provides the best toughness?
• What is thermal runaway?
• In an aircraft powered by a turbine engine, which information must be located near the fuel filler opening?
• What is an obtuse triangle?
• Which statement best describes case hardening?
• Which statement best describes true power?
• If base is 4 and height is 5, what is the area of the triangle?
• What explains why most metals expand when heated?
• Which statement best describes an icebox rivet?
• What is meant by the angle of attack?
• What is a Type Certificate Data Sheet?
• What type of AD may be adopted without NPRM?
• What kind of rope is best to tie down an aircraft?
• What is the effect on temperature when you increase the pressure of a confined gas?
• In the process of nitriding, which compound forms on the surface when aluminum is present as an alloying element?
• What precautions should be taken in the maintenance shop where both lead-acid and nickel-cadmium batteries are serviced?
• How is the inside of structural steel tubing protected from corrosion?
• Which option best describes a hexagon according to the material?
• What constitutes a capacitor?
• What is the basic equation of Ohm's Law?
• The Type Certificate Data Sheet is best described as:
• Which capacitor is polarized, making it unsuitable for AC?
• In the identification number 91-08-07 R1, what does 07 signify?
• What is the fuselage station number?
• What is the function of the developer in dye penetrant inspection?
• What is an acute triangle?
• Which property of the atmosphere determines the speed of sound?
• In DC circuits, power is calculated as:
• What are Instructions for Continued Airworthiness (ICA)?
• Why is a piece of steel tempered after it has been hardened?
• Which formula expresses resistance R when voltage E and current I are known?
• What is a Master Minimum Equipment List (MMEL)?
• What type of fire extinguisher is best suited for extinguishing an induction fire in a reciprocating engine?
• Which statement accurately describes the Second Law of Thermodynamics?
• Double flare tubing materials include which of the following ranges?
• What is meant by drag?
• Can a certificated A&P mechanic supervise an unlicensed person as the unlicensed person performs a 100-inspection on an aircraft?
• What is the advantage of using a vernier caliper over a micrometer caliper?
• How can you find the polarity of an electromagnet?
• A milliamp is equal to how many amperes?
• What is the basic unit of power in a DC circuit?
• What is the basic unit of capacitance?
• In magnetic particle inspection, which type of light is used to view indications?
• Why is aluminum alloy quenching performed immediately after removal from the heat-treating oven?
• What determines the mechanical advantage of a gear train?
• Which law of electricity is the most important?
• Which of the following statements about the relationship between internal resistance and thermal runaway is true?
• What is the basic unit of electrical resistance?
• Which description best matches the steps used to add signed numbers?
• How can you tell the resistance of a composition resistor?
• Which term describes the forward force produced by propulsion systems that accelerates air rearward?
• What must be done with tare weight when weighing an aircraft?
• Which document would you use to locate the approved repair procedures for damaged structural components such as a wing spar?
• What is the current in a circuit with a 12 V source and a 4 Ω resistor?
• What is the outside diameter range for tubing that can be flared with a double flare?
• How is it possible to know when a nickel-cadmium battery is fully charged?
• Which type of testing is used to demonstrate the mechanic applicant's knowledge?
• How many months of practical experience is needed to qualify for the mechanic rating with both Airframe and Powerplant ratings?
• What is the importance of thoroughly cleaning parts before performing a dye penetrant inspection?
• During servicing, the electrolyte level should be up to which marker in the cell?
• Which document lists the minimum operative instruments and equipment required for safe flight in that aircraft type for each authorized operating environment?
• What is the principal advantage of Teflon hose for use in an aircraft hydraulic system?
• May all of the information in AC 43-13-1B be used as approved data?
• What defines an acute angle?
• What is the reason for magnetizing a steel part in multiple directions during magnetic particle inspection?
• What is meant by dissymmetry of lift produced by a helicopter rotor?
• Which gas law states that for a fixed volume, increasing temperature increases pressure?
• Why is it necessary to consider the category under which an aircraft is licensed when computing its weight and balance?
• What is an angle?
• Fretting corrosion is most likely to occur in which location?
• Which nondestructive inspection method is used to reveal surface cracks in aluminum alloy castings or forgings?
• What is the standard sea level atmospheric pressure expressed in psi alone?
• Which items are included in the empty weight of an aircraft?
• What must be done with temporary ballast when weighing an aircraft?
• How many cells are there in a 24-volt lead-acid battery?
• The center of gravity is defined as the point about which the aircraft would balance.
• What is the purpose of the center line on an aircraft drawing?
• How does filiform corrosion usually appear on an aircraft structure?
• When the volume of a gas remains constant, what happens to pressure if temperature increases?
• Which statement about 14 CFR Part 43 is accurate?
• What is the correct composition of the electrolyte in a nickel-cadmium battery?
• In sketch terminology, which element makes a sketch usable for manufacturing?
• What does normalizing a welded or machined piece of steel accomplish?
• Does the specific gravity of the electrolyte in a lead-acid battery increase or decrease as the battery becomes discharged?
• In a vernier micrometer caliper, to what increment can the reading be made?
• If cross-sectional area increases, resistance in a conductor will?
• What is electrical current?
• What are two functions of tetraethyl lead added to aviation gasoline?
• Graphite (carbon) composites are selected for aircraft structures primarily when which property is most important?
• Intergranular corrosion in aluminum is most likely to occur when the alloy has been subjected to which condition?
• Which type of control cable must be used when pulleys change the direction of cable travel?
• Which document lists the exact part numbers and assemblies for replacement items like a bolt or bulb?
• Impedance comprises which components?