A&P General practice test 2026

1. Question 1 of 30Fundamentals of Electricity & Electronics

   A current of 2.5 amperes flows through a 10-ohm resistor. What is the voltage drop across the resistor?

   25 V250 V4 V
2. Question 2 of 30Ground Operations & Servicing

   Older extinguishing agents such as carbon tetrachloride and methyl bromide are NOT approved for aircraft fire protection primarily because they:

   Corrode aluminum on contact even when no fire is presentProduce highly toxic gases (such as phosgene) when applied to a fireWork only on Class D combustible-metal fires
3. Question 3 of 30Regulations, Maintenance Forms, Records & Publications

   A certificated Airframe and Powerplant (A&P) mechanic who does NOT hold an Inspection Authorization performs work on a small Part 91 airplane. Which inspection may this mechanic approve for return to service?

   Both the 100-hour and the annual inspectionAn annual inspection, but not a 100-hour inspectionA 100-hour inspection, but not an annual inspection
4. Question 4 of 30Aircraft Materials, Hardware & Processes

   An aluminum sheet is designated 7075-T6. What does the '-T6' temper designation indicate about how the metal was processed?

   Solution heat-treated and then artificially agedAnnealed to its softest conditionSolution heat-treated and naturally aged at room temperature
5. Question 5 of 30Weight & Balance

   An adverse-loaded CG check is being made on an airplane whose engine is rated at 180 maximum-except-takeoff (METO) horsepower. Using the standard rule and the standard weight of aviation gasoline, how much minimum fuel must be accounted for?

   15 gallons, weighing 100.5 pounds15 gallons, weighing 90 pounds30 gallons, weighing 180 pounds
6. Question 6 of 30Cleaning & Corrosion Control

   Which material is acceptable for hand-removing light corrosion from a bare aluminum-alloy surface without introducing a new corrosion hazard?

   Copper wire woolA carbon-steel wire brushAluminum wool or an aluminum-oxide abrasive
7. Question 7 of 30Physics for Aviation

   On an air-cooled reciprocating engine, heat travels from the hot combustion chamber outward through the solid metal of the cylinder wall and cooling fins. This movement of heat through the metal itself is accomplished primarily by which method of heat transfer?

   ConductionRadiationConvection
8. Question 8 of 30Mathematics

   A propeller reduction gear system has an engine-to-propeller ratio of 3:2. If the engine crankshaft is turning at 2,700 rpm, what is the propeller rotational speed?

   1,350 rpm1,800 rpm4,050 rpm
9. Question 9 of 30Fluid Lines & Fittings

   Scratches or nicks in aluminum-alloy rigid tubing may be smoothed out and the tube returned to service, provided the defect is not in the heel of a bend and is no deeper than what portion of the tube wall thickness?

   25 percent of the wall thickness50 percent of the wall thickness10 percent of the wall thickness
10. Question 10 of 30Inspection Concepts & Techniques

    How does the size of a defect affect the penetrating time required in a liquid penetrant inspection?

    The smaller the defect, the longer the penetrating time requiredThe smaller the defect, the shorter the penetrating time requiredPenetrating time depends only on the temperature of the part
11. Question 11 of 30Aircraft Drawings

    On a standard aircraft drawing, where is the title block normally located?

    Lower left-hand cornerLower right-hand cornerUpper right-hand corner
12. Question 12 of 30Human Factors

    The PEAR model is used to remember the key considerations when applying human factors to a maintenance operation. What do the letters P, E, A, and R represent?

    Personnel, Error, Assertiveness, ResponsibilityPressure, Ergonomics, Awareness, RestPeople, Environment, Actions, Resources
13. Question 13 of 30Fundamentals of Electricity & Electronics

    As the American Wire Gauge (AWG) number of a copper conductor increases—for example, from AWG 10 to AWG 20—what happens to the wire?

    Its diameter decreases and its resistance increasesIts diameter decreases and its resistance decreasesIts diameter increases and its resistance decreases
14. Question 14 of 30Ground Operations & Servicing

    When recharging a high-pressure aircraft oxygen cylinder or system, the technician should fill it slowly. Filling too rapidly is dangerous because it:

    Reverses the flow and empties the supply cylinderGenerates heat of compression that can raise the temperature enough to start a fireCauses the oxygen to lose its purity rating
15. Question 15 of 30Regulations, Maintenance Forms, Records & Publications

    An operator wants to address the unsafe condition described in an Airworthiness Directive by a means other than the one the AD prescribes. Under 14 CFR part 39, what governs the use of that alternative?

    The alternative may be used if the aircraft owner and a certificated mechanic both agree it provides an equal level of safetyThe alternative may be used as soon as it is sent to the principal inspectorThe alternative may be used only if the manager of the office identified in the AD approves it
16. Question 16 of 30Aircraft Materials, Hardware & Processes

    A Dzus turn lock fastener is used to secure an inspection panel. What three parts make up the fastener?

    A stud, a grommet, and a receptacleA screw, a lock washer, and an anchor nutA pin, a collar, and a swaging die
17. Question 17 of 30Weight & Balance

    After a repair, a mechanic checks the Type Certificate Data Sheet and finds the empty weight CG range listed as 'None.' What does that require?

    Nothing further; a listing of 'None' means no CG limits applyA check must be made to determine whether any combination of legal loading could put the loaded CG outside its allowable rangeThe aircraft may not be returned to service until the manufacturer issues an EWCG range
18. Question 18 of 30Cleaning & Corrosion Control

    Four conditions must exist before electrochemical corrosion can occur. What is the practical significance of that fact for corrosion control?

    All four conditions must be eliminated simultaneously or corrosion continuesOnly the electrolyte can be eliminated; the other three are inherent in the structureEliminating any one of the four conditions stops electrochemical corrosion
19. Question 19 of 30Physics for Aviation

    As a fluid flows through the narrow throat of a venturi tube, what happens to its velocity and its static pressure compared to the wider inlet section?

    Velocity increases and static pressure decreasesVelocity decreases and static pressure increasesVelocity increases while static pressure stays the same
20. Question 20 of 30Mathematics

    A triangular gusset plate has a base of 6 inches and a height of 4 inches. What is its area?

    24 square inches12 square inches10 square inches
21. Question 21 of 30Fluid Lines & Fittings

    After bending a piece of aluminum tubing, the mechanic should reject the bend and fabricate a new one if the bent section shows which of the following?

    A bead rolled at the end of the tubeA color-code identification band applied over the bendFlattening, wrinkles, or kinks in the bent section
22. Question 22 of 30Inspection Concepts & Techniques

    Which parts of a micrometer are the fixed parts, and which are the movable parts?

    Fixed: the frame, barrel, and anvil. Movable: the thimble and spindleFixed: the anvil and spindle. Movable: the frame and thimbleFixed: the thimble and spindle. Movable: the frame, barrel, and anvil
23. Question 23 of 30Aircraft Drawings

    The intentional difference in the dimensions of mating parts, established to provide a desired class of fit, is referred to as the:

    Clearance fitAllowanceTolerance
24. Question 24 of 30Fundamentals of Electricity & Electronics

    A transformer has 400 turns in its primary winding and 100 turns in its secondary. If 120 volts AC is applied to the primary and the transformer is 100 percent efficient, what is the secondary voltage?

    480 volts60 volts30 volts
25. Question 25 of 30Ground Operations & Servicing

    Three things are required for a fire to occur. Removing which of them will extinguish the fire?

    Any one of the three—fuel, heat, or oxygenAll three must be removed simultaneously or the fire continuesOnly the oxygen; removing fuel or heat alone will not put a fire out
26. Question 26 of 30Regulations, Maintenance Forms, Records & Publications

    Under 14 CFR 43.11, which pair of items must appear in the maintenance record entry a person makes after performing an inspection required under part 91?

    The aircraft registration number and the name of the ownerThe date of the inspection and the aircraft total time in serviceThe date of the inspection and the total time on the engine since overhaul
27. Question 27 of 30Aircraft Materials, Hardware & Processes

    A turnbuckle has been adjusted in a control cable system. Before it is safetied, how many threads may remain exposed outside the barrel?

    Any number, provided the cable tension is correctNo more than seven threads on either side of the turnbuckle barrelNo more than three threads on either side of the turnbuckle barrel
28. Question 28 of 30Weight & Balance

    Sandbags are being carried as temporary ballast in the baggage compartment of an airplane that is about to be weighed. What must be done?

    All temporary ballast must be removed before the aircraft is weighedThe ballast may stay aboard because it is listed on the weight-and-balance recordThe ballast may stay aboard if it is secured against shifting
29. Question 29 of 30Cleaning & Corrosion Control

    A corroded area has been cleaned and treated, and the aircraft is scheduled for paint refinishing. What does the handbook direct regarding the timing of the corrosion treatment?

    Corrosion treatment must be applied only after the primer coat has driedCorrosion treatment must be accomplished or reapplied on the same day that paint refinishing is scheduledCorrosion treatment should be applied at least one week before refinishing so it can fully cure
30. Question 30 of 30Physics for Aviation

    A hoist raises a 500-pound component straight up a distance of 22 feet in 20 seconds. Approximately how much power is being produced?

    0.5 horsepower2 horsepower1 horsepower

Where these come from: our app’s questions were each checked against the FAA handbook, advisory circular or regulation they cite, in two audits on September 11 and 12, 2026 (345 of the 350 passed as written; the other 5 were corrected). These thirty are taken only from the ones that passed and have not changed since, word for word.