NCAA AME Powerplant Exam Practice Test & Question Bank study guide
NCAA AME Powerplant Exam Practice Test & Question Bank · Work through your exam, one topic at a time.
The NCAA AME Powerplant examination is the powerplant-category licence assessment administered by the Nigeria Civil Aviation Authority for aircraft maintenance engineers seeking certification to maintain, inspect, and certify work on aircraft engines and propellers. It is intended for trainees completing an approved maintenance training programme, engineers adding a powerplant rating to an existing airframe licence, and experienced mechanics formalising their qualifications. The NCAA AME Powerplant Exam Practice Test & Question Bank study guide has 10 sections and about 2,638 words.
01Fundamentals of Powerplants and Engine Theory
Domain 1 tests how powerplants convert chemical energy into mechanical energy and how cycle, geometry, and rating definitions are applied. Reciprocating engines use the Otto cycle (spark ignition) or Diesel cycle (compression ignition); turbines use the Brayton cycle.
254 words, about 1 min02Reciprocating Engine Construction, Components, and Operation
Domain 2 covers the hardware that contains the cycle: crankcase, crankshaft, rods, pistons, cylinders, valve train, and accessories. The crankcase carries main bearings and reacts firing loads; the crankshaft converts reciprocating motion to rotation and may include counterweights and a damper.
279 words, about 1 min03Reciprocating Engine Systems: Ignition, Induction, Cooling, Lubrication, and Starting
Domain 3 tests the support systems that make a reciprocating engine start, run, and stay cool. Magnetos are self-contained: rotating magnet, coil, breaker points, capacitor, and distributor.
255 words, about 1 min04Reciprocating Engine Fuel Metering, Carburetion, and Fuel Injection
Domain 4 covers how reciprocating engines meter fuel and air, and how mixture affects temperature and power. A float carburetor uses a venturi, float chamber, main jet, idle circuit, accelerator pump, economizer, and mixture control.
257 words, about 1 min05Propellers and Propeller Control Systems
Domain 5 tests propeller geometry, control, and inspection. Blade angle is measured from the plane of rotation; angle of attack is blade angle minus relative wind angle.
242 words, about 1 min06Turbine Engine Construction, Components, and Operation
Domain 6 covers turbine engine flow path and components. Air enters the inlet, is compressed by axial or centrifugal compressor stages, diffused, mixed with fuel in combustors, expanded through turbine stages, and exhausted.
249 words, about 1 min07Turbine Engine Systems: Fuel, Lubrication, Ignition, Starting, and Air
Domain 7 tests the fuel, oil, ignition, starting, and air systems that support turbine operation. The fuel system includes tank boost pumps, engine-driven HP pump, fuel control unit or FADEC, fuel/oil heat exchanger, filter, and nozzles.
249 words, about 1 min08Powerplant Inspection, Maintenance, Troubleshooting, and Testing
Domain 8 tests planned inspection, condition monitoring, troubleshooting, and return-to-service testing. Required inspections include annual and 100-hour inspections, progressive inspections, and AD-mandated inspections.
240 words, about 1 min09Powerplant Installation, Fire Protection, and Related Systems
Domain 9 tests how the powerplant is attached, connected, protected from fire, and integrated with airframe systems. Engine mounts carry thrust and torque and isolate vibration; dynafocal mounts use angled isolators to focus vibration toward the center of gravity.
299 words, about 1 min10Aviation Maintenance Regulations, Documentation, and Safety
Domain 10 tests regulations, records, and safety practices that govern powerplant maintenance. Part 43 defines maintenance, preventive maintenance, rebuilding, and alteration.
314 words, about 2 min