9.4 Airport Operations, Markings, and Common Traps

AFOQT Study Guide Exam

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1 Chapter 1: AFOQT Orientation and Exam Strategy

1.1 Current AFOQT Exam Facts 1.2 Eligibility, Application, and Scheduling 1.3 Blueprint Domains and Weighting 1.4 Question Style and Score Report Thinking 1.5 Study Calendar and Practice Plan

2 Chapter 2: Verbal Analogies

2.1 Verbal Analogies Overview 2.2 Core Workflows and Decision Points 2.3 Scenario Practice for Verbal Analogies 2.4 Common Traps in Verbal Analogies 2.5 Practice Drills and Readiness Markers

3 Chapter 3: Arithmetic Reasoning

3.1 Arithmetic Reasoning Overview 3.2 Core Problem Types and Solution Workflows 3.3 Scenario Practice and Translation Method 3.4 Common Traps in Arithmetic Reasoning 3.5 Practice Drills and Readiness Markers

4 Chapter 4: Word Knowledge

4.1 Word Knowledge Overview 4.2 Decoding Words: Roots, Prefixes, and Suffixes 4.3 Working a Synonym Question Step by Step 4.4 Common Traps in Word Knowledge 4.5 Practice Drills and Readiness Markers

5 Chapter 5: Math Knowledge

5.1 Math Knowledge Overview 5.2 Core Algebra and Geometry Workflows 5.3 Worked Problem Walkthroughs 5.4 Common Traps in Math Knowledge 5.5 Practice Drills and Readiness Markers

6 Chapter 6: Instrument Comprehension

6.1 Instrument Comprehension Overview 6.2 Reading the Attitude Indicator and Compass 6.3 Matching the Dials to the Silhouette Airplanes 6.4 Common Traps in Instrument Comprehension 6.5 Practice Drills and Readiness Markers

7 Chapter 7: Block Counting

7.1 Block Counting Overview 7.2 Core Workflows and Decision Points 7.3 Scenario Practice for Block Counting 7.4 Common Traps in Block Counting 7.5 Practice Drills and Readiness Markers

8 Chapter 8: Table Reading

8.1 Table Reading Overview 8.2 Core Lookup Workflow and Speed Technique 8.3 Reading the Grid: Worked Lookups 8.4 Common Traps in Table Reading 8.5 Practice Drills and Readiness Markers

9 Chapter 9: Aviation Information

9.1 Aviation Information Overview 9.2 Aerodynamics and Flight Controls 9.3 Aircraft Structure, Engines, and Instruments 9.4 Airport Operations, Markings, and Common Traps 9.5 Practice Drills and Readiness Markers

10 Chapter 10: General Science

10.1 Physical Science Overview 10.2 Core Concepts: Forces, Energy, and Simple Machines 10.3 Waves, Heat, and the Electromagnetic Spectrum 10.4 Chemistry and Electricity Essentials 10.5 Earth/Space Science and Practice Drills

11 Chapter 11: Situational Judgment

11.1 Situational Judgment Overview 11.2 Core Workflows and Decision Points 11.3 Scenario Practice for Situational Judgment 11.4 Common Traps in Situational Judgment 11.5 Practice Drills and Readiness Markers

12 Chapter 12: Reading Comprehension

12.1 Reading Comprehension Overview 12.2 Core Reading Methods and Question Types 12.3 Scenario Practice for Reading Comprehension 12.4 Common Traps in Reading Comprehension 12.5 Practice Drills and Readiness Markers

13 Chapter 13: Self-Description Inventory

13.1 Self-Description Inventory Overview 13.2 The Big Five and Response Strategy 13.3 Scenario Practice: Reading SDI Statements 13.4 Common Traps in the Self-Description Inventory 13.5 Practice Drills and Readiness Markers

14 Chapter 14: Final Review and Test Day

14.1 Timed Practice Strategy 14.2 Last-Week Review Map 14.3 Exam-Day Checklist 14.4 After the Exam and Next Steps

9.4 Airport Operations, Markings, and Common Traps

Key Takeaways Explain This Topic AI

Taxiway edge lights are blue; runway edge lights are white (yellow near the threshold end); taxiway centerline lights are green.

Runway numbers are the magnetic heading rounded to the nearest 10 degrees, dropping the last zero (e.g., Runway 27 = 270 degrees).

METARs report current observed weather; TAFs forecast it; PIREPs are pilot reports; SIGMETs warn of hazards.

The classic AI trap is a real aviation term placed in the wrong role — match the term to its exact function.

Last updated: June 2026

9.4 Airport Operations, Markings, and Common Traps
Lighting colors

Airport-operations questions reward rote memorization more than reasoning, so this is one bucket where flashcards pay off fastest. The single richest vein of points is lighting and marking color, followed by runway numbering and the weather products. Lighting color questions appear on almost every test. Memorize this table exactly, because the colors are not intuitive and the distractors are simply the other valid colors placed on the wrong surface:

Light Color
Taxiway edge Blue
Taxiway centerline Green
Runway edge White (amber/yellow on the last 2,000 ft)
Runway centerline White (alternating red/white near the end)
Runway threshold Green (entering) / Red (departure end)

The single highest-value fact: taxiway edge lights are blue — that is how pilots tell taxiways from runways at night and avoid runway incursions.

Runway numbering

Runways are numbered by their magnetic heading rounded to the nearest 10 degrees, with the last zero dropped . A runway aligned with magnetic heading 268 degrees is Runway 27 ; the opposite end is Runway 09 (270 vs. 090, always 180 degrees / 18 apart). Parallel runways add L , C , or R (left, center, right).

Runway markings on the pavement

Beyond lighting, painted markings carry information. The runway threshold is marked by a set of long white stripes (the "piano keys"). Large white numbers give the runway heading. A displaced threshold is shown by white arrows leading to a solid line, marking pavement usable for taxi and takeoff roll but not for landing touchdown. The aiming point is a pair of broad white rectangles about 1,000 feet down the runway.

All runway markings are white ; all taxiway markings are yellow , including the yellow centerline a pilot follows and the yellow hold-short lines (two solid, two dashed) where an aircraft must stop before entering a runway.

The traffic pattern

A standard rectangular pattern (normally left turns) has five legs: upwind (climbing out aligned with the runway), crosswind (a 90-degree turn off the departure end), downwind (flown parallel to the runway but opposite the landing direction), base (the turn back toward the runway), and final (aligned with the runway for landing). Knowing the order matters, because AI may ask which leg precedes the turn to final — the answer is base. The pattern keeps arriving and departing traffic predictable and separated, and the standard direction is left turns unless the airport specifies right traffic.

Airspace and basic rules

U.S. airspace is layered into classes A through G. Class A is 18,000 feet and above (instrument flight only). Class B surrounds the busiest airports, Class C mid-size, and Class D smaller towered fields, each requiring radio contact. Class E is controlled airspace not otherwise classified, and Class G is uncontrolled. AI rarely demands deep airspace rules, but it may test the broad idea that busier airspace requires more equipment, clearances, and communication.

Weather products

Product What it is
METAR Current observed surface weather at an airport
TAF Terminal Aerodrome Forecast — a forecast for an airport
PIREP Pilot report of actual in-flight conditions
SIGMET / AIRMET Warnings of significant / less-severe weather hazards

A METAR includes wind, visibility, present weather, cloud layers, temperature/dewpoint, and altimeter setting, all in a fixed coded order. The trap is mixing up METAR (observed now) with TAF (forecast) . A quick memory hook: METAR has an "M" for "measured right now," while TAF is a forecast of what is to come. PIREPs add the human element from aircraft already aloft, and SIGMETs and AIRMETs are the hazard alerts layered on top of the routine reports.

Common traps in Aviation Information

Trap 1 - the right word in the wrong job. Distractors are usually genuine aviation terms used incorrectly: offering angle of incidence for angle of attack , elevator for aileron , or TAF for METAR . Fix every term to its exact function, not just its topic.

Trap 2 - confusing similar controls. Ailerons (roll) vs. elevator (pitch) vs. rudder (yaw); flaps (add lift, low speed) vs. spoilers (kill lift). Build a one-line mnemonic: "A-roll, E-pitch, R-yaw."

Trap 3 - airspeed vs. AOA for stalls. Any option claiming a stall happens at a fixed airspeed is wrong — stalls depend on exceeding the critical angle of attack .

Trap 4 - light/marking color mix-ups. Blue = taxiway edge, green = taxiway centerline, white = runway edge. Reversing these is the most common color error.

Trap 5 - over-thinking a recall item. AI is definitional. If you find yourself constructing an elaborate justification, you are probably rationalizing a wrong choice. Pick the plain, textbook-correct answer.

Use a quick checklist on each question: (1) identify the topic bucket, (2) recall the exact definition, (3) match it to the option whose role is precisely correct, (4) reject any option that swaps a real term into the wrong job, and (5) if unsure, eliminate and guess — there is no wrong-answer penalty.