NCAA PPL Aircraft General Knowledge study guide
NCAA PPL Aircraft General Knowledge · Work through your exam, one topic at a time.
The NCAA Private Pilot Licence Aircraft General Knowledge knowledge test is one of the ground examinations a candidate must pass before applying for a Nigerian private pilot licence. It is administered by the Nigeria Civil Aviation Authority, which regulates aviation in Nigeria under the Civil Aviation Act and publishes its syllabi and requirements for all knowledge tests in Advisory Circular NCAA-AC-PEL 018, found under Personnel Licensing Advisory Circulars on ncaa.gov.ng. The test is multiple choice and is delivered in English. It covers aircraft general knowledge in the broad sense: airframe structure and components, aircraft systems such as fuel, electrical, hydraulic, pneumatic, ice and fire protection, flight controls, landing gear and pressurisation; the powerplant, including piston engine principles, carburation, ignition, cooling, lubrication and propellers; and flight instruments, including pitot-static and gyroscopic instruments and their failure modes. You must score at least 75% to pass, and a pass is valid for 24 calendar months from the date the result is issued, so plan the remaining ground tests and the flight test around that window. Applications to sit knowledge tests are submitted at the Authority's headquarters in Abuja or at the regional offices in Lagos, Kaduna and Enugu. Topics on this exam: Aircraft General Knowledge (airframe, systems, powerplant, instruments). The NCAA PPL Aircraft General Knowledge study guide has 1 section and about 475 words.
01Aircraft General Knowledge: Airframe, Systems, Powerplant and Instruments
Aircraft General Knowledge is the paper that tests whether you understand the machine you fly: its structure, how its systems move and feed the engine, how the powerplant converts fuel into thrust, and what the flight instruments are really telling you. NCAA PPL questions in this domain are practical: they ask why a semi-monocoque fuselage carries load, what happens when the pitot head ices, or why a magneto check is run before take-off. A semi-monocoque fuselage uses skin to carry much of the load; formers and stringers stiffen it against buckling, while frames carry concentrated loads. Primary controls are ailerons, elevator and rudder; flaps and trim are secondary.
475 words, about 2 minMore study resources for NCAA PPL Aircraft General Knowledge
- Practice questionsIn a typical light training aircraft, what is the primary function of the empennage?
- FlashcardsSemi-monocoque construction. A structural design where the skin carries a large share of the load, supported by stringers and frames.
- Cheat sheetAirframe structures: semi-monocoque construction carries loads through skin, stringers, and frames; the skin resists shear and tension while frames and stringers resist bending and compression, so a dent or crack in stressed skin is a structural concern, not cosmetic.
- Key termsAirframe. The structural components of an aircraft, including the fuselage, wings, empennage, and landing gear, but excluding the powerplant and its accessories.
- Study planMap the four exam sub-areas (airframe, systems, powerplant, instruments) and list every topic you must cover, weighting airframe structures and flight controls first because they underpin later systems study.
- Common mistakesCandidates memorise the stroke names as a list (intake, compression, power, exhaust) without linking each stroke to piston direction, valve state, and the ignition event.
- Exam-day guideBring the original, unexpired ID in the name used on your booking.