FAA Commercial Pilot Airplane Written Test (CAX) Practice Test
Build your confidence for FAA Commercial Pilot Airplane Written Test (CAX). Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.
Try a sample questionExam overview and details
The FAA Commercial Pilot Airplane Written Test (CAX) is a critical milestone in an aviator's professional development, serving as the foundational knowledge assessment required for the Commercial Pilot Certificate. This comprehensive examination evaluates a candidate's mastery of advanced aeronautical concepts beyond the private pilot level, covering eight core knowledge areas essential for safe and proficient commercial operations. Successfully passing the CAX demonstrates to the Federal Aviation Administration, employers, and the aviation industry that the pilot possesses the rigorous theoretical understanding required to exercise the privileges of a commercial pilot, including compensation for flight. The test validates competency in complex aircraft systems, sophisticated cross-country planning, advanced meteorology, precise performance calculations, and thorough knowledge of FAR Parts 61 and 91. Earning a passing score is not merely an academic exercise; it is a non-negotiable prerequisite that unlocks the practical flight test and, ultimately, the certificate that transforms a pilot from a recreational or private operator into a professional capable of conducting flight for hire. This certification is universally recognized as the gateway to careers in charter, aerial application, flight instruction, and corporate aviation, forming the essential knowledge base upon which further type ratings and airline transport pilot qualifications are built.
Sample Questions
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A hand-held GPS shows the course line centered, but the database cycle is expired and the route passes near restricted airspace. What is the best use of the GPS?
A normally aspirated airplane departs a high-elevation airport on a hot afternoon with humidity and a near-gross-weight load. Which performance factor is being increased?
A pilot calculates zero fuel weight for an aircraft whose POH includes a structural zero fuel weight limit. Why does that limit matter?
A pilot notices a NOTAM closing the destination runway beginning 20 minutes before ETA. The alternate runway is shorter and has obstacles. What is the best preflight response?
A pilot computes best-rate climb speed but then loads the aircraft to maximum gross weight. Compared with a lighter weight, what happens to climb performance?
Exam insights and study advice
The CAX is a definitive benchmark of professional aeronautical knowledge and a mandatory step toward earning the commercial pilot certificate. In the highly regulated aviation industry, this certification is not optional-it is the legal and professional standard that separates private pilots from those authorized to be compensated for flying. Success on this exam signals to potential employers, chief pilots, and flight departments that a candidate has the discipline and intellectual rigor to master complex regulations, systems, and procedures. It is the first major credential that explicitly states you possess the knowledge to operate as a professional, directly impacting hireability and career trajectory. For those pursuing careers as flight instructors, charter pilots, or corporate aviators, the Commercial Pilot Certificate is the foundational license upon which all subsequent advancements depend. Industry recognition of this achievement is absolute; it is a universally respected prerequisite documented in every professional pilot's logbook and application.
What this exam covers
01Airport and Seaplane Base Operations
Topics
- Radio communications and ATC services
- Traffic patterns
- Airport markings, signs, and lighting
Learning objectives
- Radio communications and ATC services
- Traffic patterns
- Airport markings, signs, and lighting
02Emergency Operations
Topics
- Emergency approach and landing
- Systems and equipment malfunctions
- Emergency equipment and survival gear
Learning objectives
- Emergency approach and landing
- Systems and equipment malfunctions
- Emergency equipment and survival gear
03High-Altitude Operations
Topics
- Supplemental oxygen requirements
- Pressurization systems
Learning objectives
- Supplemental oxygen requirements
- Pressurization systems
04Navigation
Topics
- Pilotage and dead reckoning
- Navigation systems and radar services
- Diversion and lost procedures
Learning objectives
- Pilotage and dead reckoning
- Navigation systems and radar services
- Diversion and lost procedures
05Performance and Ground Reference Maneuvers
Topics
- Steep turns
- Steep spirals
- Chandelles
- Lazy eights
- Eights on pylons
Learning objectives
- Steep turns
- Steep spirals
- Chandelles
- Lazy eights
- Eights on pylons
06Postflight Procedures
Topics
- After-landing, parking, and securing
Learning objectives
- After-landing, parking, and securing
07Preflight Preparation
Topics
- Pilot qualifications and currency
- Airworthiness and maintenance requirements
- Weather information and cross-country planning
- National airspace system
Learning objectives
- Pilot qualifications and currency
- Airworthiness and maintenance requirements
- Weather information and cross-country planning
- National airspace system
08Preflight Procedures
Topics
- Preflight inspection
- Cockpit management and systems
- Engine starting and run-up
Learning objectives
- Preflight inspection
- Cockpit management and systems
- Engine starting and run-up
09Slow Flight and Stalls
Topics
- Maneuvering during slow flight
- Power-off, power-on, and accelerated stalls
Learning objectives
- Maneuvering during slow flight
- Power-off, power-on, and accelerated stalls
10Takeoffs, Landings, and Go-Arounds
Topics
- Normal, crosswind, short-field, and soft-field takeoffs and landings
- Go-around and rejected landing
Learning objectives
- Normal, crosswind, short-field, and soft-field takeoffs and landings
- Go-around and rejected landing