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30 questions Β· all topics Β· free to read

FAA Written Exam Cheat Sheet 2026

The 30 questions FAA written candidates miss most often. Each with the right answer, the underlying rule, and the trap most pilots fall into. No signup required to read β€” bookmark this page or read in one sitting.

Aerodynamics

Q. What causes a stall β€” speed or angle of attack?

A. Angle of attack. ALWAYS.

Why: Critical angle of attack (~16-18Β° for most GA wings) is what determines stall, not airspeed.

Trap: Question may suggest 'too slow' is the cause. Technically you can stall at ANY airspeed if you exceed critical AoA.

Q. What's load factor in a 60Β° banked level turn?

A. 2 G.

Why: Load factor = 1 / cos(bank angle). cos(60Β°) = 0.5, so 1/0.5 = 2.

Trap: Stall speed increases proportional to sqrt(load factor) β€” at 2G stall speed is 1.41Γ— normal.

Q. What's induced drag and when does it dominate?

A. Drag caused by lift generation. Dominates at low airspeeds and high angles of attack.

Why: Induced drag varies inversely with airspeed squared. As you slow down to stall, induced drag skyrockets.

Trap: Parasite drag (form, skin friction) dominates at HIGH airspeeds. Total drag curve has minimum at L/D max speed.

Q. Adverse yaw β€” what causes it and how to correct?

A. Caused by induced drag asymmetry from differential lift. Correct with rudder in coordinated turn.

Why: Aileron-down wing produces more lift AND more induced drag. Pulls nose away from turn direction.

Trap: More pronounced at slow speeds + high AoA. Frise ailerons reduce but don't eliminate adverse yaw.

Airspace

Q. Class B airspace: do you need an ATC clearance, or just a transponder?

A. ATC clearance. Mode C transponder. Two-way radio comms.

Why: Class B is the big-airport airspace (LAX, JFK, ORD, etc.). FAR 91.131. Without explicit clearance you cannot enter.

Trap: Question wording often says 'just a transponder' β€” wrong. You need clearance AND transponder AND radio.

Q. VFR cloud clearance in Class E below 10,000 MSL?

A. 500 below, 1,000 above, 2,000 horizontal. Vis 3 SM.

Why: FAR 91.155 basic VFR weather minimums. The classic '5-1-2 / 3' memory aid.

Trap: Above 10,000 MSL the numbers change to 1,000-1,000-1 SM horizontal / 5 SM vis. Don't confuse.

Q. Special VFR minimums in Class B/C/D/E surface area?

A. 1 SM visibility, clear of clouds, daytime only. Pilot must request SVFR; ATC may approve.

Why: FAR 91.157. Allows VFR ops below standard VFR mins when IFR isn't an option.

Trap: SVFR at night requires an instrument-rated pilot AND IFR-equipped aircraft. Daytime is the common case.

Communications

Q. When entering a non-towered airport pattern, when do you announce?

A. 10 NM out (or as appropriate), then downwind, base, final, and clear of runway.

Why: AIM 4-1-9. CTAF announcements give other traffic situational awareness.

Trap: The 10 NM call is recommended but not required by reg. Pattern entry calls are critical.

Q. What's a Mayday vs Pan-Pan?

A. Mayday = imminent danger to life. Pan-Pan = urgent but not imminent.

Why: ICAO emergency phraseology. Mayday is repeated 3 times.

Trap: Don't use Mayday for engine roughness in cruise (Pan-Pan is appropriate). Don't downplay an actual emergency.

Emergency

Q. Best glide speed for most light singles?

A. Refer to the POH. Typically 65-75 KIAS for trainers.

Why: Maximum L/D ratio. Gives you maximum range for a given altitude lost.

Trap: Minimum sink speed (different from best glide) gives max TIME aloft, not max distance. Different goal.

Q. Engine fire on start-up β€” what's the first action?

A. Continue cranking the starter. The starter motor pulls air through the engine and may push the fire out the exhaust.

Why: Counterintuitive but correct. Cutting off causes fire to spread; cranking exhausts it.

Trap: If cranking doesn't extinguish, then: fuel off, mixture cutoff, ignition off, master off, evacuate.

Instruments

Q. What does a leaking static port do to your instruments?

A. Altimeter reads lower than actual. Airspeed reads incorrectly. VSI reads incorrectly.

Why: Static port feeds the pitot-static system. A leak inside a pressurized cabin = cabin air enters port.

Trap: If you suspect static port issue, use the alternate static source (per POH). Airspeed will read slightly higher than normal with alt static.

Q. What's the difference between IAS, CAS, EAS, and TAS?

A. IAS = what the airspeed indicator reads. CAS = IAS corrected for instrument error. EAS = CAS corrected for compressibility. TAS = EAS corrected for density.

Why: Performance calculations use different airspeed types depending on phase of flight.

Trap: TAS increases with altitude at constant IAS β€” that's why high-altitude cruise gives faster ground speed.

Part 107 / Drone

Q. Maximum altitude for Part 107 operations?

A. 400 feet AGL, OR within 400 feet of a structure.

Why: FAR 107.51. The structure exception allows tall building inspections at altitude > 400 AGL within 400 ft of the structure.

Trap: Always AGL, not MSL. Pilots accustomed to MSL altitudes for manned flight often get this wrong.

Q. Operations over people β€” which Category?

A. Categories 1-4 (FAR 107.110-145). Most operations require Category 1-3 drone configuration.

Why: Categories are weight + impact-energy based. Adopted 2021 final rule.

Trap: BVLOS still requires a waiver. Categories cover ops OVER people, not BEYOND visual line of sight.

Performance

Q. Density altitude effects on takeoff?

A. High DA = longer ground roll, lower climb rate, reduced engine performance.

Why: Hot day + high airport + humid = high DA. Fewer air molecules = less lift, less thrust.

Trap: Standard DA is at MSL, 15Β°C, 29.92 inHg. Anything above standard increases DA dramatically.

Q. Headwind component vs crosswind component?

A. Headwind = wind speed Γ— cos(angle from runway heading). Crosswind = wind speed Γ— sin(angle).

Why: Used for landing/takeoff performance and crosswind limit checks.

Trap: When wind is 30Β° off runway: HW β‰ˆ 87% of wind speed, XW β‰ˆ 50%. At 45Β° both equal ~71%.

Q. Service ceiling vs absolute ceiling?

A. Service ceiling = altitude where climb rate drops to 100 fpm. Absolute ceiling = altitude where climb rate reaches 0.

Why: Service ceiling is the practical limit for normal operations.

Trap: Absolute ceiling is theoretical β€” you can't actually reach it in finite time at normal climb rates.

Regulations

Q. PPL minimum flight hours under Part 61?

A. 40 hours total. 20 with instructor, 10 solo. 3 hours XC at night, 3 hours instrument, 3 hours test prep within 60 days.

Why: FAR 61.109(a). National average is 60-75 hours actual to pass.

Trap: Part 141 minimum is 35 hours. Different rule, different exam path.

Q. When does a private pilot need a medical?

A. Class 3 medical OR BasicMed for non-commercial flying.

Why: FAR 61.23. Class 3 valid 5 years if under 40, 2 years if 40+. BasicMed needs FAA exam + driver's license.

Trap: BasicMed only valid for aircraft ≀ 6,000 lbs MTOW and ≀ 6 passengers. Many GA aircraft qualify, but not all.

Q. Currency for night carrying passengers?

A. 3 takeoffs and 3 landings to a full stop within preceding 90 days, between 1 hour after sunset and 1 hour before sunrise.

Why: FAR 61.57(b). 'Full stop' is the key β€” touch-and-go's don't count for night currency.

Trap: Daytime currency is 3 takeoffs/landings within 90 days β€” touch-and-go counts. Different rules.

Q. Logbook entries required for what?

A. All flight time (PIC, dual, solo, XC), all aeronautical experience for ratings, all flight reviews and checkrides.

Why: FAR 61.51. Logbook is your legal record of pilot experience.

Trap: Don't log time you didn't actually fly. Falsifying logbook = felony, lost certificate.

Weather

Q. What does PROB30 mean in a TAF?

A. 30% probability of the conditions occurring in the time window.

Why: Less than 50% probability requires PROB notation. Used for forecast uncertainty.

Trap: PROB30 is paired with a time group β€” the probability applies ONLY to that time window, not the entire TAF.

Q. Standard pressure lapse rate?

A. 1 inch Hg per 1,000 feet.

Why: ICAO standard atmosphere. Used for pressure altitude calculations.

Trap: Temperature lapse rate is different: 2Β°C per 1,000 ft. Don't confuse the two.

Q. Dewpoint within 4Β°F of temperature means what?

A. High likelihood of fog formation.

Why: Dewpoint near temperature = air near saturation = condensation.

Trap: Radiation fog (clear nights, calm wind, near dewpoint) and advection fog (moist air over cold surface) form differently.

Q. What's wind shear and when is it most dangerous?

A. Sudden change in wind direction/speed with altitude or position. Most dangerous near thunderstorms.

Why: Microburst downdrafts at 6,000 ft/min. Can drive aircraft into terrain during takeoff/landing.

Trap: Clear-air shear can occur near jet streams at altitude β€” not just convective weather.

Weight & Balance

Q. What's the formula for moment?

A. Weight Γ— arm = moment.

Why: Total moment / total weight = CG. CG must be within forward/aft limits per POH.

Trap: Arm units vary by manufacturer (inches from datum). Always check the units.

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