FAA Commercial Pilot Airplane Written Test (CAX) Practice Test

The FAA Commercial Pilot Airplane Written Test (CAX) requires a passing score of 70%. The test is administered at FAA-approved Computer Testing Centers (CTCs) nationwide. It consists of 100 multiple-choice questions selected from the official test bank, and candidates are allowed 3 hours to complete the exam. An official endorsement from an authorized instructor is required before you can schedule the test at a CTC.

Your passing score on the CAX is valid for 24 calendar months from the date you take the test. You must complete the Commercial Pilot Practical Test (checkride) within this two-year period. If you do not, you will be required to retake and pass the written exam before being eligible for the practical test.

The CAX assumes knowledge from the private pilot level and expands significantly into advanced operations. Key differences include a greater emphasis on complex aircraft systems (e.g., constant-speed propellers, retractable gear, turbocharging), detailed performance calculations for takeoff, landing, and cruise, commercial regulations under FAR Part 91 and Part 61, high-altitude aerodynamics and physiology, and more sophisticated cross-country planning involving variable winds, fuel management, and commercial service requirements. The questions often require multi-step analysis.

Yes, but with specific limitations. You are permitted to use an FAA-approved aviation calculator (like the E6-B or electronic equivalent) and plotter. The testing center will provide you with any necessary supplements, such as the FAA Figure Booklet, which contains charts, graphs, and diagrams needed to answer specific questions. You may not bring any personal notes, study guides, or unapproved electronic devices into the testing room.

A professional study strategy involves a multi-faceted approach: 1) Use the FAA's official source documents (Commercial Pilot Airman Certification Standards, Pilot's Handbook of Aeronautical Knowledge, Airplane Flying Handbook, FAR/AIM). 2) Enroll in a reputable ground school course or use comprehensive online preparation software that provides access to the current question bank and detailed explanations. 3) Focus on understanding concepts rather than memorizing answers. 4) Create a study schedule covering all topic areas, allocating extra time for weaker subjects. 5) Take numerous practice tests under timed conditions to build endurance and identify knowledge gaps.