CAX · 5% of the exam
Airport Operations practice questions
10 free Airport Operations questions for the Commercial Pilot Airplane (CAX) Knowledge Test exam, each with the correct answer and an explanation for every option.
What this domain covers
Operating safely on and around airports: signs, markings and lighting, traffic patterns, radio procedures and wake turbulence.
- Exam weight
- 5%
- On a real exam
- ≈ 5 questions
- In our bank
- 30 questions
Topics that come up most
- Runway and taxiway signs and markings
- Airport lighting and visual approach slope indicators
- Traffic pattern procedures and radio communications
- Wake turbulence avoidance
- ATC light gun signals
How to study it
Learn the light gun signals as a two-column list, on the ground and in the air, and quiz yourself on the differences.
Sample Airport Operations questions
Try each one before opening the answer. Original questions written to the official exam objectives.
Question 1
What do enhanced taxiway centerline markings warn of?
- AA closed taxiway
- BA runway holding position ahead
- CA helicopter landing area beside the taxiway
- DA departures-only taxiway
Show answer and explanation
Answer: B) A runway holding position ahead
- AIncorrect. That uses an X.
- BCorrect. Dashed yellow lines border the centerline.
- CIncorrect. That uses other markings.
- DIncorrect. They warn of a hold line.
Question 2
In flight, a steady red light from the tower means:
- ACleared to land
- BGive way and keep circling
- CAirport unsafe; don't land
- DReturn for landing
Show answer and explanation
Answer: B) Give way and keep circling
- AIncorrect. That's steady green.
- BCorrect. Don't land yet.
- CIncorrect. That's flashing red.
- DIncorrect. That's flashing green.
Question 3
Runway end identifier lights (REIL) consist of:
- APaired strobes
- BSteady green bars
- CBlue edge lights
- DRed obstruction lights
Show answer and explanation
Answer: A) Paired strobes
- ACorrect. Two synchronized flashing lights at the threshold.
- BIncorrect. Those mark thresholds.
- CIncorrect. Those are taxiways.
- DIncorrect. Those mark obstacles.
Question 4
What does an alternating red and green light gun signal mean?
- AReturn to the starting point
- BCleared to land
- CExercise extreme caution
- DAirport unsafe; do not land
Show answer and explanation
Answer: C) Exercise extreme caution
- AIncorrect. That is flashing white on the ground.
- BIncorrect. That is steady green in flight.
- CCorrect. It applies on the ground and in flight.
- DIncorrect. That is flashing red in flight.
Question 5
While taxiing toward a runway, a pilot sees a pair of elevated, alternately flashing yellow lights on each side of the taxiway at the hold position marking. What do these lights indicate?
- ARunway guard lights marking the holding position for an active runway ahead
- BA stop bar showing that ATC has not yet cleared the aircraft to proceed
- CRunway status lights warning that the runway is currently unsafe to enter
- DA clearance bar marking a low-visibility hold point at a taxiway intersection
Show answer and explanation
Answer: A) Runway guard lights marking the holding position for an active runway ahead
A pair of elevated flashing yellow lights on each side of the taxiway at the hold position marking are runway guard lights. They confirm an active runway ahead and help prevent runway incursions.
- ACorrect. Elevated runway guard lights are a pair of flashing yellow lights on both sides of the taxiway at the runway holding position marking. They confirm that an active runway is ahead and help prevent runway incursions.
- BIncorrect. Stop bars are steady red lights, set into the pavement across the taxiway, with elevated red lights on each side. They are not flashing yellow.
- CIncorrect. Runway Entrance Lights in the runway status lights system are red in-pavement lights. They are not elevated flashing yellow fixtures.
- DIncorrect. Clearance bars are three steady yellow in-pavement lights at taxiway holding points or intersections. They are not elevated flashing lights at a runway hold position.
Question 6
A wind tetrahedron, if free to move, points:
- AInto the wind
- BDownwind
- CNorth always
- DToward the tower
Show answer and explanation
Answer: A) Into the wind
- ACorrect. Its small end faces the wind.
- BIncorrect. It points into the wind.
- CIncorrect. It follows the wind.
- DIncorrect. It follows the wind.
Question 7
Taking off behind a large airplane that just departed, where should a pilot plan to lift off?
- ABefore the large airplane's rotation point
- BAfter the large airplane's rotation point
- CExactly at its rotation point
- DAnywhere, since departing airplanes make no wake
Show answer and explanation
Answer: A) Before the large airplane's rotation point
- ACorrect. Then climb above its flight path.
- BIncorrect. That puts you in its wake.
- CIncorrect. Lift off before it.
- DIncorrect. Departing airplanes make strong vortices.
Question 8
A wind sock is fully extended. About what wind speed does that suggest?
- AAbout 50 knots or more
- BAbout 3 knots
- CAbout 15 knots or more
- DNo wind at all
Show answer and explanation
Answer: C) About 15 knots or more
- AIncorrect. Full extension begins much lower.
- BIncorrect. A limp sock suggests light winds.
- CCorrect. Partial extension suggests lighter winds.
- DIncorrect. A full sock shows strong wind.
Question 9
Runway holding position markings consist of:
- AGreen taxi lights only
- BA single white line
- CRed and white stripes
- DSolid and dashed yellow
Show answer and explanation
Answer: D) Solid and dashed yellow
- AIncorrect. They're yellow lines.
- BIncorrect. They're yellow.
- CIncorrect. They're yellow.
- DCorrect. Two solid and two dashed yellow lines; hold on the solid side.
Question 10
While taxiing at night, a pilot sees a line of steady green lights set into the pavement ahead, with a row of blue lights on each side of the paved surface. What do these lights indicate?
- AGreen lights mark the taxiway centerline; blue lights mark the taxiway edges
- BGreen lights mark the runway threshold; blue lights mark the runway edges
- CGreen lights mark the taxiway edges; blue lights mark the taxiway centerline
- DGreen lights mark the runway centerline; blue lights mark a runway safety area
Show answer and explanation
Answer: A) Green lights mark the taxiway centerline; blue lights mark the taxiway edges
Taxiway edge lights are blue and taxiway centerline lights are steady green. Runway edge and centerline lights are white.
- ACorrect. Taxiway centerline lights are steady-burning green lights, and taxiway edge lights emit blue light.
- BIncorrect. Threshold lights are green, but they run across the runway end, not along a centerline. Runway edge lights are white, or yellow on the caution zone of instrument runways. They are not blue.
- CIncorrect. This swaps the colors. Edge lights are blue and centerline lights are green.
- DIncorrect. Runway centerline lights are white, changing to alternating red/white and then all red near the runway end. Blue edge lights identify a taxiway, not a runway safety area.
Airport Operations: FAQs
How much of the CAX exam is Airport Operations?
Airport Operations is 5% of the CAX exam by the official exam guide's weighting, which on a 100-question form works out to roughly 5 questions. The real exam's exact split varies by form.
What does the Airport Operations domain cover?
Operating safely on and around airports: signs, markings and lighting, traffic patterns, radio procedures and wake turbulence.
How should I study Airport Operations for CAX?
Learn the light gun signals as a two-column list, on the ground and in the air, and quiz yourself on the differences.
Where can I practise more Airport Operations questions?
This page has 10 free Airport Operations questions with answers. The ExamWize CAX question bank has 30 questions in this domain. Every practice exam result breaks your score down by domain, and Review Mode re-drills the questions you missed.
Other CAX topics
- Pilot Qualifications, Airworthiness and Regulations17% of the exam
- Weather Information15% of the exam
- Cross-Country Planning and Navigation12% of the exam
- National Airspace System8% of the exam
- Performance, Aerodynamics and Maneuvers17% of the exam
- Operation of Systems and High-Altitude Operations13% of the exam
- Human Factors8% of the exam
- Emergency Operations5% of the exam
Also: 15 free questions across all topics, the CAX cheat sheet and the study guide.
Get Airport Operations exam-ready
The full CAX bank has 30 Airport Operations questions. Timed practice exams match the real exam's length and domain weights, every result shows your score per domain, and Review Mode re-drills the questions you missed.
Not affiliated with FAA; questions are original, written from the official exam outline, and never copied from the real exam.