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ADX · 10% of the exam

Navigation practice questions

10 free Navigation questions for the Aircraft Dispatcher (ADX) Knowledge Test exam, each with the correct answer and an explanation for every option.

Start the questionsFree 10-question ADX quiz

What this domain covers

How a flight finds its way and how that affects planning: charts, navigation systems, performance-based navigation and the calculations behind route and fuel decisions.

Exam weight
10%
On a real exam
≈ 8 questions
In our bank
60 questions

Topics that come up most

  • Enroute, terminal and approach chart interpretation
  • VOR, DME, ILS and GPS/RNAV systems
  • Performance-based navigation and RNP
  • True, magnetic and grid headings and variation
  • Time, distance, fuel and wind triangle calculations

How to study it

Work through wind triangle and time-distance-fuel problems by hand and with a flight computer until you can do them quickly and without errors.

Sample Navigation questions

Try each one before opening the answer. Original questions written to the official exam objectives.

  1. Question 1

    Victor airways extend from 1,200 feet AGL up to:

    • AFL450
    • BBut not including 18,000 feet MSL
    • C10,000 feet MSL, where the airspace speed limit ends
    • D3,000 feet AGL
    Show answer and explanation

    Answer: B) But not including 18,000 feet MSL

    • AIncorrect. That's the top of jet routes.
    • BCorrect. Jet routes start at 18,000 feet.
    • CIncorrect. They extend higher.
    • DIncorrect. They extend higher.

  2. Question 2

    About how much does true airspeed exceed indicated airspeed per 1,000 feet of altitude?

    • AAbout 20%
    • BAbout 2%
    • CAbout 0.1%
    • DIt doesn't change with altitude
    Show answer and explanation

    Answer: B) About 2%

    • AIncorrect. That's far too much.
    • BCorrect. The difference grows with altitude.
    • CIncorrect. That's far too little.
    • DIncorrect. TAS increases with altitude.

  3. Question 3

    What compass error occurs during turns from a northerly heading in the Northern Hemisphere?

    • AThe compass freezes and stops reading entirely
    • BThe compass leads the turn by twice the bank angle
    • CThe compass lags or initially turns the wrong way
    • DNo error occurs on northerly headings
    Show answer and explanation

    Answer: C) The compass lags or initially turns the wrong way

    • AIncorrect. It shows turning error.
    • BIncorrect. It lags on northerly headings.
    • CCorrect. It's caused by magnetic dip.
    • DIncorrect. Turning error is greatest there.

  4. Question 4

    On a Lambert conformal chart, a straight line approximates a:

    • AMagnetic isogonic line
    • BRhumb line at constant heading
    • CLine of constant latitude
    • DGreat circle
    Show answer and explanation

    Answer: D) Great circle

    • AIncorrect. It approximates a great circle.
    • BIncorrect. That's a Mercator straight line.
    • CIncorrect. It approximates a great circle.
    • DCorrect. Useful for long routes.

  5. Question 5

    At a groundspeed of 450 knots, 1,350 NM takes:

    • A2 hours
    • B3 hours
    • C4 hours
    • D3.5 hours
    Show answer and explanation

    Answer: B) 3 hours

    • AIncorrect. Recheck the division.
    • BCorrect. 1,350 ÷ 450.
    • CIncorrect. Recheck the division.
    • DIncorrect. Recheck the division.

  6. Question 6

    What is the typical ILS glide slope angle?

    • AAbout 1.5°
    • BAbout 10°
    • CAbout 3°
    • DAbout 30°
    Show answer and explanation

    Answer: C) About 3°

    • AIncorrect. That's too shallow.
    • BIncorrect. That's too steep.
    • CCorrect. Some approaches are steeper.
    • DIncorrect. That's far too steep.

  7. Question 7

    The shortest distance between two points on the earth lies along a:

    • AIsogonic line
    • BRhumb line
    • CLine of latitude
    • DGreat circle
    Show answer and explanation

    Answer: D) Great circle

    • AIncorrect. It's a great circle.
    • BIncorrect. That keeps a constant heading but is longer.
    • CIncorrect. Only the equator is a great circle.
    • DCorrect. Its heading changes along the route.

  8. Question 8

    RNP 4 requires lateral navigation accuracy within:

    • A0.3 NM at all times
    • B4 NM, 95% of the time
    • C10 NM, 50% of the time
    • D40 NM
    Show answer and explanation

    Answer: B) 4 NM, 95% of the time

    • AIncorrect. That's approach-level RNP.
    • BCorrect. Used on some oceanic routes.
    • CIncorrect. It's 4 NM, 95%.
    • DIncorrect. It's 4 NM, 95%.

  9. Question 9

    What happens to the date when crossing the International Date Line westbound?

    • AIt advances one week
    • BIt goes back one day
    • CIt doesn't change
    • DIt advances one day
    Show answer and explanation

    Answer: D) It advances one day

    • AIncorrect. It's one day.
    • BIncorrect. That's eastbound.
    • CIncorrect. The date changes.
    • DCorrect. Eastbound, the date goes back a day.

  10. Question 10

    What is the equal time point (ETP) on a long overwater route?

    • AThe point where the flight crosses a time zone boundary
    • BThe point where fuel tanks are exactly half full
    • CThe halfway point by distance, regardless of wind
    • DWhere it takes the same time to continue or return
    Show answer and explanation

    Answer: D) Where it takes the same time to continue or return

    • AIncorrect. It's a decision point.
    • BIncorrect. It's based on time, not fuel.
    • CIncorrect. Winds shift the ETP.
    • DCorrect. Winds affect its location.

Navigation: FAQs

How much of the ADX exam is Navigation?

Navigation is 10% of the ADX exam by the official exam guide's weighting, which on a 80-question form works out to roughly 8 questions. The real exam's exact split varies by form.

What does the Navigation domain cover?

How a flight finds its way and how that affects planning: charts, navigation systems, performance-based navigation and the calculations behind route and fuel decisions.

How should I study Navigation for ADX?

Work through wind triangle and time-distance-fuel problems by hand and with a flight computer until you can do them quickly and without errors.

Where can I practise more Navigation questions?

This page has 10 free Navigation questions with answers. The ExamWize ADX question bank has 60 questions in this domain. Every practice exam result breaks your score down by domain, and Review Mode re-drills the questions you missed.

Other ADX topics

Also: 15 free questions across all topics, the ADX cheat sheet and the study guide.

Get Navigation exam-ready

The full ADX bank has 60 Navigation 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.

See the full ADX practice examsTake the free diagnostic

Not affiliated with FAA; questions are original, written from the official exam outline, and never copied from the real exam.