PPL Theory Exams Australia: Complete Guide to All 7 CASA Exams

The Private Pilot Licence (PPL) in Australia requires passing 7 separate CASA theory exams. Unlike the RPL, which has a single 37-question exam, the PPL has a full suite of written tests covering each topic area in depth. Here's everything you need to know.

PPL theory exam requirements: overview

• Number of exams: 7 separate subjects
• Pass mark: 70% for each exam
• Valid for: Passes are valid for 2 years
• Administered by: CASA-approved testing centres (computerised)
• When to sit: You can start sitting exams before completing all flight training — most students start around the 10–15 hour mark

The 7 PPL theory exams

1. Air law (ALAW)

Covers Australian aviation regulations, airspace structure, rules of the air, licensing requirements, and the Civil Aviation Safety Regulations (CASR). This is one of the most heavily memorisation-based exams — you need to know specific rule numbers, altitudes, and procedures.

Difficulty: Medium–High | Typical questions: 30

2. Aerodynamics (AERO)

Tests your understanding of how aircraft fly — lift, drag, thrust, weight, stall characteristics, stability, and control. Questions often present scenarios requiring you to apply principles rather than recall facts.

Difficulty: Medium | Typical questions: 20

3. Aircraft general knowledge (AGK)

Covers engines (piston and turbine basics), fuel systems, electrical systems, instruments, hydraulics, and aircraft systems. This is very practical knowledge that also helps in the cockpit.

Difficulty: Medium | Typical questions: 30

4. Meteorology (MET)

The most detailed of the PPL exams. Covers the atmosphere, weather systems, clouds, precipitation, wind, turbulence, icing, and weather interpretation. Students consistently rate this as the hardest PPL theory exam.

Difficulty: High | Typical questions: 30

5. Navigation (NAV)

Map reading, flight planning, dead reckoning, compass work, track and heading calculations, time/speed/distance, and use of the navigation computer (circular slide rule or electronic equivalent). Highly practical and calculation-heavy.

Difficulty: Medium–High | Typical questions: 30

6. Human performance and limitations (HPL)

Covers how the human body responds to flight — hypoxia, spatial disorientation, night vision, fatigue, stress, and Crew Resource Management (CRM) concepts. Also covers decision-making and threat and error management.

Difficulty: Low–Medium | Typical questions: 20

7. Performance and loading (PAL)

Aircraft performance chart reading, weight and balance calculations, takeoff and landing distance calculations, climb performance, range, and endurance. Requires you to accurately interpret complex graphs and performance tables.

Difficulty: Medium–High | Typical questions: 20

Recommended order to sit PPL exams

Most students and flight schools recommend this sequence:

1. Air Law — Sit first so you understand the rules you're flying under
2. Aerodynamics — Underpins everything else
3. Aircraft General Knowledge — Practical, ties into your flight training
4. Human Performance — Easier subject, good confidence builder
5. Meteorology — Start early and give yourself maximum study time
6. Performance and Loading — Needs chart practice; do after some flight training
7. Navigation — Leave until you have some cross-country flight training

Study tips for PPL theory exams

Spread your study

Don't try to sit all 7 exams in a short burst. Most PPL students take 12–18 months to complete all theory alongside their flight training. This spacing allows the knowledge to consolidate and align with what you're learning in the air.

Use official materials

All questions are drawn from CASA's published study materials. The Day VFR Syllabus is the foundation for RPL/PPL subjects. For PPL, additional resources like Bob Tait's manuals, Jeppesen study guides, and CASA's own resources are widely used.

Practise under exam conditions

Timed practice exams are essential, especially for Navigation and Performance and Loading where calculation speed matters.

Focus on meteorology early

Meteorology is the exam students most often have to resit. Start studying it early and return to it regularly throughout your training.

PPL vs RPL: different theory requirements

If you're deciding between RPL and PPL, note that:

• The RPL requires just 1 theory exam (37 questions, 90 minutes)
• The PPL requires 7 theory exams across separate subjects
• RPL exam content is a subset of PPL content — RPL holders who upgrade to PPL will already know much of the material

See our RPL vs PPL comparison for more detail.

Start practising now

The Pilot Exam has practice questions covering all RPL and PPL theory topics. Practise individual topics or take full timed mock exams to simulate the real CASA test experience. Our questions are verified against official CASA study materials so you're always preparing for what actually appears in the exam.

Related Resources

• PPL Exam Topics Guide
• PPL Study Plan
• PPL Practice Questions