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?

   250 V25 V12.5 V4 V
2. Question 2 of 30Ground Operations & Servicing

   Before an aircraft engine is started on the ramp, a fire guard should be posted nearby. The fire guard should be equipped with which fire extinguisher?

   A pressurized water extinguisherA carbon dioxide (CO2) extinguisherNo extinguisher - the guard only watches for onlookersA bucket of sand for a Class D fire
3. Question 3 of 30Regulations, Maintenance Forms, Records & Publications

   For an airplane to be operated under IFR in controlled airspace, the altimeter and static pressure system must have been tested and inspected within the preceding—

   24 months from the date of the last test12 calendar months100 hours of time in service24 calendar months
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 agedSolution heat-treated and naturally aged at room temperatureStrain-hardened only (cold worked, not heat-treatable)Annealed to its softest condition
5. Question 5 of 30Weight & Balance

   Using standard weights, approximately how much does 30 U.S. gallons of aviation gasoline weigh?

   180 lb201 lb225 lb250.5 lb
6. Question 6 of 30Cleaning & Corrosion Control

   Of the common structural metals used on aircraft, which is generally the MOST chemically active and therefore the most susceptible to corrosion?

   TitaniumCorrosion-resistant (stainless) steelAlclad aluminumMagnesium
7. Question 7 of 30Physics for Aviation

   When a technician checks a liquid with a hydrometer, the instrument reports the liquid's specific gravity. Specific gravity of a liquid is defined as the ratio of that liquid's density to the density of what reference?

   A perfect vacuumDry air at sea levelPure waterMercury
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?

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

   AN (Army-Navy) standard flared tube fittings used in aircraft fluid systems are designed for a flare seat angle of how many degrees (measured from the tube centerline)?

   45 degrees30 degrees37 degrees60 degrees
10. Question 10 of 30Inspection Concepts & Techniques

    When magnetic particle inspecting a steel shaft, circular magnetization is MOST effective for revealing cracks that are oriented in which way?

    Perpendicular to the long axis of the part (transverse defects)Parallel to the long axis of the part (longitudinal defects)Randomly oriented flaws in a nonmagnetic aluminum partOnly defects on the interior bore of a hollow shaft
11. Question 11 of 30Aircraft Drawings

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

    Upper right-hand cornerLower left-hand cornerCenter of the top borderLower 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?

    Procedures, Equipment, Attitude, RegulationsPeople, Environment, Actions, ResourcesPressure, Ergonomics, Awareness, RestPersonnel, Error, Assertiveness, Responsibility
13. Question 13 of 30Fundamentals of Electricity & Electronics

    An aircraft AC system supplies 115 volts RMS (effective value). What is the approximate peak voltage of this sine-wave supply?

    81 V163 V230 V115 V
14. Question 14 of 30Ground Operations & Servicing

    To keep a parked aircraft from rolling while it is being serviced, wheel chocks are used. They are correctly positioned:

    Under the nose strut instead of the wheelsSeveral feet away so the tires can be inspectedOnly behind the main wheelsSnugly in front of and behind the wheels
15. Question 15 of 30Regulations, Maintenance Forms, Records & Publications

    To exercise the privileges of a mechanic certificate, the holder must meet a recency-of-experience requirement. Within the preceding 24 months, the mechanic must have exercised the privileges of the certificate or supervised such work for at least—

    24 months continuously3 months12 months6 months
16. Question 16 of 30Aircraft Materials, Hardware & Processes

    A manual specifies 300 inch-pounds of torque at a nut. A mechanic must add a 2-inch drive-line extension in line with a torque wrench whose lever length (drive center to handle center) is 10 inches. Using TW = TA × L ÷ (L + E), what should the torque wrench read to actually apply 300 in-lb at the nut?

    360 inch-pounds300 inch-pounds250 inch-pounds375 inch-pounds
17. Question 17 of 30Weight & Balance

    The leading edge of an aircraft's mean aerodynamic chord (LEMAC) is at station 120, and the MAC is 60 inches long. If the loaded CG is at station 141, where is the CG expressed as a percent of MAC?

    235% MAC35% MAC21% MAC15% MAC
18. Question 18 of 30Cleaning & Corrosion Control

    Two close-fitting parts held together under load develop pits and a dark powdery oxide debris at their contact faces after prolonged exposure to slight vibratory motion. This condition is known as:

    Fretting corrosionConcentration-cell corrosion on an open, freely draining surfaceFiliform corrosionExfoliation corrosion
19. Question 19 of 30Physics for Aviation

    A quantity of gas occupies 30 cubic inches at an absolute pressure of 15 psia. If the gas is compressed at a constant temperature until its absolute pressure is 45 psia, what volume will it occupy?

    90 cubic inches20 cubic inches15 cubic inches10 cubic inches
20. Question 20 of 30Mathematics

    A rectangular battery box has inside dimensions of 12 inches long, 8 inches wide, and 9 inches high. What is its volume in cubic feet? (1 cubic foot = 1,728 cubic inches)

    0.5 cubic foot864 cubic feet6 cubic feet72 cubic feet
21. Question 21 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?

    10 percent of the wall thicknessAny depth, as long as the scratch is polished smooth50 percent of the wall thickness25 percent of the wall thickness
22. Question 22 of 30Inspection Concepts & Techniques

    A 100-hour inspection discloses defects that make the aircraft unairworthy, and the inspector does not approve it for return to service. Under 14 CFR 43.11, what must the person who performed the inspection do?

    Report the aircraft to the nearest FSDO within 48 hoursPersonally correct every discrepancy before making any maintenance record entryGive the owner or lessee a signed and dated list of the discrepanciesPermanently ground the aircraft and cancel its registration
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:

    ToleranceNominal dimensionAllowanceClearance fit
24. Question 24 of 30Fundamentals of Electricity & Electronics

    A fixed resistor is marked with three color bands read from the end toward the center: yellow, violet, orange. There is no fourth band. What is its resistance and tolerance?

    4,700 ohms, ±3 percent470,000 ohms, ±5 percent47,000 ohms, ±20 percent47,000 ohms, ±3 percent
25. Question 25 of 30Ground Operations & Servicing

    A marshaller must direct an aircraft on the ramp after dark. To make the standard hand signals visible at night, the marshaller uses:

    Illuminated (lighted) wands held in each handThe aircraft's own landing lights flashed in codeA handheld radio only, with no visual signalsThe same bare-hand signals, since they are visible enough
26. Question 26 of 30Regulations, Maintenance Forms, Records & Publications

    Under Part 91, who is PRIMARILY responsible for maintaining an aircraft in an airworthy condition, including ensuring compliance with applicable Airworthiness Directives?

    The aircraft's original manufacturerThe owner or operator of the aircraftThe FAA Flight Standards District OfficeThe mechanic who performed the most recent inspection
27. Question 27 of 30Aircraft Materials, Hardware & Processes

    In a riveted sheet-metal repair using protruding-head solid rivets, what is the minimum acceptable edge distance (center of the rivet hole to the edge of the sheet)?

    2 times the rivet shank diameter6 times the rivet shank diameter4 times the rivet shank diameter1 time the rivet shank diameter
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 if it is secured against shiftingThe ballast weight must be added to the scale readings after weighingThe ballast may stay aboard because it is listed on the weight-and-balance record
29. Question 29 of 30Cleaning & Corrosion Control

    Spilled electrolyte from a lead-acid battery is found in the battery compartment. Before the area is cleaned and refinished, it should FIRST be neutralized with:

    Additional battery electrolyte to keep the pH constantClean water only, with no neutralizing agentA solution of boric acidA solution of sodium bicarbonate (baking soda)
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 horsepower1 horsepower2 horsepower5 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.