FAA FNX Knowledge Test — Flight Navigator

Under 14 CFR § 63.51, which of the following is a mandatory general eligibility requirement for an applicant seeking an FAA Flight Navigator Certificate?

• AMust be at least 18 years of age and hold a Commercial Pilot Certificate
• BMust be at least 21 years of age and be able to read, speak, write, and understand English
• CMust hold a valid First-Class Medical Certificate issued within the preceding 6 calendar…
• DMust have completed at least 500 hours of cross-country PIC flight time in multi-engine a…

According to 14 CFR § 63.55, how many total hours of flight time in performance of flight navigator duties (or navigator trainee duties under supervision) are required to qualify for the Flight Navigator Certificate?

• A100 hours
• B200 hours
• C300 hours
• D500 hours

An applicant for a flight navigator certificate is not a graduate of an approved flight navigator course. Under 14 CFR § 63.55(a)(1), what celestial position-fixing experience must the documentary evidence show?

• ASatisfactory determination of position in flight at least 25 times by night by celestial…
• BAt least 50 hours of night flight time spent taking and plotting celestial observations
• CAt least 75 hours of night flight time using pressure pattern navigation only
• DAt least 100 hours of night flight time using radar and Loran systems

What is the recency of experience requirement for a certificated flight navigator serving on an air carrier aircraft operating under 14 CFR Part 121?

• AMust have logged at least 50 hours as a flight navigator within the preceding 12 calendar…
• BMust have completed 10 oceanic crossings within the preceding 90 days
• CMust have logged 25 celestial sights within the preceding 60 days
• DMust re-take the FAA FNX knowledge test every 24 calendar months

Pursuant to 14 CFR § 63.3, when must a certificated flight navigator carry their certificate?

• AIn the flight navigator's personal possession or readily accessible in the aircraft when…
• BFiled permanently with the air carrier's chief pilot office at the main operations base
• COnly when flying outside the continental limits of the United States
• DInside the aircraft's primary maintenance logbook binder

What is the maximum period of validity for a Temporary Flight Navigator Certificate issued to an applicant who has passed the practical test?

• A60 days
• B90 days
• C120 days
• D180 days

If a certificated flight navigator changes their permanent address, within how many days must they notify the FAA Airman Certification Branch in writing?

• A14 days
• B30 days
• C60 days
• D90 days

Under 14 CFR § 63.12, what is the consequence of a flight navigator's refusal to submit to a chemical test for alcohol or drugs requested by a law enforcement officer?

• AMandatory re-examination on celestial navigation within 60 days
• BGrounds for denial of an application for any certificate or rating, or suspension/revocat…
• CA mandatory $5,000 fine paid directly to the FAA Administrator
• DA 30-day suspension of flight privileges without administrative appeal

What minimum class of FAA medical certificate is required for an airman to exercise the privileges of a Flight Navigator Certificate?

• AThird-Class Medical Certificate
• BSecond-Class Medical Certificate
• CFirst-Class Medical Certificate
• DBasicMed Qualification

Unless surrendered, suspended, or revoked, what is the duration of an FAA Flight Navigator Certificate?

• AValid for 24 calendar months
• BValid for 5 years from date of issuance
• CIssued without an expiration date (valid indefinitely)
• DValid only as long as the holder maintains a First-Class Medical Certificate

Under 14 CFR Part 121 extended overwater operations where a flight navigator is required, which equipment must be installed or available on board the aircraft?

• AA dual VOR/ILS receiver and automatic flight control coupling only
• BAn approved astrodome or periscope sextant mount, precision timekeeping device, and drift…
• CA dual weather radar display and satellite radio transceiver
• DAn emergency locator transmitter (ELT) coupled to a primary HF radio

When is a specialized Flight Navigator required on board an air carrier aircraft operating under 14 CFR Part 121?

• AOn all flights operating above Flight Level 290 (FL290)
• BWhen the flight operates in Class II navigation airspace and navigation cannot be safely…
• COn any international flight crossing more than two time zones
• DOnly during non-radar departures from non-towered airports in foreign countries

Under 14 CFR § 63.59, what details must a flight navigator record in their navigation log during an oceanic flight?

• AFuel burn rates per engine every 15 minutes only
• BPosition fixes obtained by celestial, DR, or electronic means, wind vectors, magnetic var…
• CPassenger manifest details and cargo bay weight distribution
• DEngine oil pressure and hydraulic quantity readings at each waypoint

If an applicant is caught cheating or engaging in unauthorized conduct during the FAA Flight Navigator Knowledge Test (FNX), what penalty is specified under 14 CFR § 63.18?

• ADisqualification from taking any FAA knowledge or practical test for 1 year, and suspensi…
• BA mandatory 30-day retake restriction with no further administrative action
• CPermanent revocation of all pilot certificates without right of appeal
• DA written reprimand placed in the airman's FAA file for 90 days

To be eligible to take the FAA Flight Navigator practical test, within what preceding timeframe must the applicant have passed the FNX knowledge test?

• A12 calendar months
• B24 calendar months
• C36 calendar months
• D48 calendar months

An applicant who fails the FAA Flight Navigator Knowledge Test may reapply for testing after 30 days. How can the applicant retake the test prior to the 30-day waiting period?

• ABy paying a $100 expedited re-testing fee to the testing center
• BBy presenting a written endorsement from a certificated flight navigator or ground instru…
• CBy obtaining a written waiver from an FAA Designated Pilot Examiner (DPE)
• DBy submitting a formal petition to the NTSB

Upon the revocation of a Flight Navigator Certificate by the FAA Administrator, what action is required of the certificate holder?

• AThe certificate must be surrendered to the FAA Administrator upon request
• BThe certificate may be retained as a decorative souvenir provided it is stamped 'INVALID'
• CThe certificate must be transferred to an authorized flight training academy
• DThe certificate remains valid for non-commercial domestic flights

When serving on an air carrier flight crew operating under 14 CFR Part 121, how are a flight navigator's flight duty time limitations governed?

• AFlight navigators are exempt from all federal duty time regulations
• BFlight navigators are subject to the same applicable flag and supplemental air carrier fl…
• CFlight navigators are governed solely by maritime labor standards
• DFlight navigators may fly up to 20 hours continuously in any 24-hour window without relief

What responsibility does the flight navigator have regarding the aircraft's magnetic compass systems during oceanic flights?

• ANavigators are prohibited from checking compass alignment during flight
• BNavigators must periodically check directional gyro drift and verify magnetic compass dev…
• CNavigators must replace compass fluid in flight if air bubbles appear
• DNavigators must adjust physical compass compensating magnets while airborne

Under what condition may an uncertificated flight navigator trainee perform navigation duties on an extended overwater flight operated under 14 CFR Part 121?

• AThe trainee may operate independently provided the captain holds a Ground Instructor Cert…
• BThe trainee may perform duties only under the direct, continuous supervision of a fully c…
• CThe trainee may fly solo provided they have logged 100 hours of simulator training
• DTrainees are prohibited from touching navigation equipment during actual flight operations

For a 35-year-old flight navigator exercising certificate privileges in commercial air carrier operations, when does their FAA Second-Class Medical Certificate expire?

• AAt the end of the 6th calendar month after the month of examination
• BAt the end of the 12th calendar month after the month of examination
• CAt the end of the 24th calendar month after the month of examination
• DAt the end of the 60th calendar month after the month of examination

Which authority has legal entitlement under 14 CFR § 63.59 to inspect a flight navigator's flight time records and oceanic navigation logs?

• AAny FAA Administrator representative, authorized NTSB investigator, or law enforcement of…
• BOnly the local airport manager at the departure field
• COnly a certified public accountant auditing the airline
• DInternational Civil Aviation Organization (ICAO) inspectors only

In accordance with FAA Flight Navigator practical testing standards, what is the maximum acceptable Dead Reckoning (DR) position error tolerance during flight evaluation over a 1-hour segment?

• AWithin 5 nautical miles of actual aircraft position
• BWithin 15 nautical miles of actual aircraft position
• CWithin 30 nautical miles of actual aircraft position
• DWithin 50 nautical miles of actual aircraft position

Applying 14 CFR § 91.17 alcohol rules to Part 63 flight crewmembers, what is the maximum allowable blood alcohol concentration while acting as a flight navigator?

• A0.00 percent
• B0.02 percent
• C0.04 percent
• D0.08 percent

How may a holder of a valid foreign flight navigator certificate issued by an ICAO member state qualify for an FAA Flight Navigator Certificate under 14 CFR Part 63?

• ABy automatic certificate exchange without testing
• BBy satisfying 14 CFR § 63.51 eligibility, passing the FAA FNX knowledge test, and passing…
• CBy submitting a written request to any FAA FSDO along with a $50 application fee
• DBy logging 50 hours of flight time in US-registered aircraft only

Calculate the Dip correction for a marine/bubble sextant observation taken from an aircraft with a height of eye of 25 feet above the surface. (Dip formula: Dip = 0.97 * sqrt(Height of Eye in feet))

• A-2.4 minutes of arc
• B-4.85 minutes of arc
• C-6.2 minutes of arc
• D-9.7 minutes of arc

A flight navigator observes a star with a sextant altitude (Hs) of 34° 12.0'. The sextant has an Index Error of 2.5' 'on the arc'. What is the corrected Apparent Altitude (Ha) before dip and refraction?

• A34° 14.5'
• B34° 09.5'
• C34° 12.0'
• D34° 07.0'

How does atmospheric refraction affect a celestial body observed near the horizon, and what correction is applied to the altitude?

• ARefraction makes the body appear lower than its true position; the correction is added
• BRefraction makes the body appear higher than its true position; the correction is subtrac…
• CRefraction alters only the body's azimuth angle, leaving altitude unchanged
• DRefraction is zero at the horizon and reaches maximum at the zenith (90° altitude)

At a given GMT, GHA Aries is 142° 20.0'. The Sidereal Hour Angle (SHA) of the star Dubhe is 193° 40.0'. What is the Greenwich Hour Angle (GHA) of Dubhe?

• A024° 00.0'
• B336° 00.0'
• C051° 20.0'
• D142° 20.0'

If GHA of a star is 210° 15.0' and the aircraft's Assumed Longitude is 075° 15.0' West, what is the Local Hour Angle (LHA) of the star?

• A135° 00.0'
• B285° 30.0'
• C075° 15.0'
• D345° 00.0'

A flight navigator computes a sight reduction yielding Calculated Altitude (Hc) = 48° 05.0' and Azimuth (Zn) = 135°. The true Observed Altitude (Ho) from sextant reduction is 48° 14.0'. What is the intercept distance and direction?

• A9 NM Away along 315°
• B9 NM Towards along 135°
• C19 NM Towards along 135°
• D14 NM Away along 315°

For a sight reduction, Calculated Altitude (Hc) = 55° 32.0' and Azimuth (Zn) = 240°. Observed Altitude (Ho) = 55° 20.0'. What is the Line of Position (LOP) intercept?

• A12 NM Towards along 240°
• B12 NM Away along 240° (plot away along reciprocal 060°)
• C52 NM Away along 240°
• D20 NM Towards along 240°

A sight of Polaris yields an Observed Altitude (Ho) of 42° 30.0'. From the Polaris Table, the combined corrections (a0 + a1 + a2 - 1°) equal +18.0'. What is the observer's true Latitude?

• A42° 12.0' N
• B42° 48.0' N
• C43° 00.0' N
• D41° 30.0' N

At Local Apparent Noon (Meridian Transit), the Sun is observed bearing South with an Observed Altitude (Ho) of 65° 00.0'. The Sun's Declination is 12° 30.0' North. What is the aircraft's Latitude?

• A25° 00.0' N
• B37° 30.0' N
• C52° 30.0' N
• D77° 30.0' N

When taking a sextant observation of the Sun's lower limb, why is a Semi-Diameter (SD) correction applied, and what is its typical value?

• ASD corrects for atmospheric bending near the horizon; value is -34.5'
• BSD corrects from the observed edge of the Sun's disk to its geometric center; value is ap…
• CSD corrects for aircraft velocity; value is +5.0' per 100 knots TAS
• DSD corrects for parallax of the Moon; value is -16.0'

What causes acceleration error in an aircraft bubble sextant, and how is it minimized during flight?

• AChanges in solar wind pressure; minimized by using infrared filters
• BAircraft speed changes and turbulence deflecting the liquid bubble; minimized by taking a…
• CMagnetic compass deviation; minimized by aligning the sextant with the directional gyro
• DStatic electricity on the astrodome; minimized by grounding the periscope mount

If a celestial body has a true Observed Altitude (Ho) of 52° 40.0', what is its Zenith Distance (ZD)?

• A37° 20.0'
• B52° 40.0'
• C127° 20.0'
• D142° 40.0'

What is the primary advantage of Pub 249 (Sight Reduction Tables for Air Navigation) Volume 1 compared to Volumes 2 and 3?

• AVolume 1 provides pre-computed Hc and Zn for 7 selected stars per LHA Aries for any given…
• BVolume 1 contains tables for solar eclipses and lunar occultations
• CVolume 1 is valid indefinitely for 100 years without epoch precession corrections
• DVolume 1 is designed exclusively for low-altitude marine vessels below 500 feet

How are Pub 249 Volumes 2 and 3 structured for reducing sights of the Sun, Moon, and planets?

• AThey are tabulated by Assumed Latitude, Declination (0°-29° or 30°-89°), and Local Hour A…
• BThey require entering aircraft groundspeed and True Course directly
• CThey plot lines of position directly onto radar scope overlays
• DThey rely strictly on Polaris altitude offset charts

An aircraft is cruising at Longitude 122° 30' West. What is its Zone Description (ZD), and if Greenwich Mean Time (GMT/UTC) is 18:30, what is the Local Zone Time (ZT)?

• AZD = +8; ZT = 10:30
• BZD = -8; ZT = 02:30 next day
• CZD = +7; ZT = 11:30
• DZD = +8; ZT = 18:30

A flight navigator's chronometer is checked on July 1 and found to be 10 seconds FAST. Its known daily rate is GAINING 2.0 seconds per day. On July 6 at a sight observation time, what is the total chronometer error to be applied to the watch reading?

• A20 seconds FAST (subtract 20 seconds from watch reading)
• B10 seconds SLOW (add 10 seconds to watch reading)
• C20 seconds SLOW (add 20 seconds to watch reading)
• D0 seconds (no error)

What solar depression angle defines Civil Twilight, and why is Civil Twilight significant for celestial flight navigators?

• ASun 6° below horizon; it marks the boundary where the horizon is still visible while brig…
• BSun 12° below horizon; it is the time of complete night darkness
• CSun 18° below horizon; it marks when the Sun reaches the celestial equator
• DSun 0° on horizon; it marks official local sunrise

On a Lambert Conformal Conic chart, how does a celestial Line of Position (LOP) plot relative to the assumed position?

• AAs a curved parabola curving away from the equator
• BAs a straight line perpendicular to the celestial body's azimuth line (Zn)
• CAs a perfect circle with radius equal to True Airspeed
• DAs a rhumb line cutting all meridians at a constant angle

Why do celestial coordinates (SHA and Declination) of stars change slowly over time, requiring updated epoch tables in Pub 249 Volume 1 every 5 years?

• ADue to continental drift of Earth's land masses
• BDue to Earth's axial precession (a ~25,800-year wobbling of Earth's rotational axis) and…
• CDue to solar flare radiation altering atmospheric refractivity
• DDue to orbital decay of Earth's distance from the Sun

When selecting three stars for a 3-star celestial fix, what is the optimum azimuth angular separation between the stars to obtain the most accurate geometric fix (smallest cocked hat triangle)?

• AAll three stars within 30° of each other
• BApproximately 120° apart in azimuth from each other
• CTwo stars directly ahead and one star directly behind
• DAll three stars aligned along the same meridian

Which celestial body requires a significant Parallax in Altitude correction during sight reduction due to its proximity to Earth?

• AThe Sun
• BThe Moon
• CJupiter
• DPolaris

At a specific GMT, GHA Aries is 085° 30.0'. The aircraft is at Assumed Longitude 120° 30.0' East. What is the Local Hour Angle of Aries (LHA Aries)?

• A206° 00.0'
• B035° 00.0'
• C145° 00.0'
• D326° 00.0'