GNAV 05

[GNAV-PT05 #1] Which bearings are measured from the local meridian of longitude to the line of direction? A) Magnetic bearings B) True bearings C) Compass bearings D) Meridian bearings

[GNAV-PT05 #2] An aircraft is located on the R-352 radial from a VOR/DME. Local magnetic variation is 5°W. Ignoring convergency, what is the QDM to the VOR/DME? A) 177°M B) 352°M C) 172°M D) 167°M

[GNAV-PT05 #3] An aircraft is located on the R-115 radial from a VOR/DME. Local magnetic variation is 12°E. Ignoring convergency, what is the QDM to the VOR/DME? A) 295°M B) 307°M C) 283°M D) 103°M

[GNAV-PT05 #4] An aircraft is located on the R-153 radial from a VOR/DME. Local magnetic variation is 12°E. Ignoring convergency, what is the QUJ to the VOR/DME? A) 165°T B) 345°T C) 357°T D) 333°T

[GNAV-PT05 #5] From which of the following radio navigation aids is bearing established by the calculation of the phase difference between the reference and variable phase signals? A) VDF B) DME C) NDB D) VOR

[GNAV-PT05 #6] An aircraft is on a QDR of 165°M from an NDB. Magnetic variation at the aircraft is 10°E and at the NDB is 12°E. What is the true bearing from the aircraft to the NDB? A) 175°T B) 335°T C) 355°T D) 345°T

[GNAV-PT05 #7] An aircraft is on a QDR of 004°M from an NDB. Magnetic variation at the aircraft is 12°E and at the NDB is 10°E. What is the true bearing from the aircraft to the NDB? A) 016°T B) 196°T C) 194°T D) 014°T

[GNAV-PT05 #8] An aircraft is on a QDR of 246°M from an NDB. Magnetic variation at the aircraft is 22°E and at the NDB is 18°E. What is the true bearing from the aircraft to the NDB? A) 050°T B) 218°T C) 044°T D) 038°T

[GNAV-PT05 #9] Position lines are plotted from an aircraft’s position fix to a VOR/DME (265°T), and from the aircraft to the destination aerodrome (085°T). Magnetic variation at the aircraft is 3°W and 5°W at the VOR. Ignoring convergency, what radial will the aircraft follow from its position fix to the aerodrome? A) R-080 B) R-082 C) R-090 D) R-088

[GNAV-PT05 #10] Which radio navigation aids are used for a rho/rho position fix? A) NDB/NDB B) VOR/VOR C) DME/DME D) VDF/VDF

[GNAV-PT05 #11] Which of the following radio navigation aids are used to establish a Rho/Theta position fix? A) VDF and VOR B) VOR and VOR C) NDB and DME D) VOR and DME

[GNAV-PT05 #12] Which of the following radio navigation aids provides distance information? A) VDF B) DME C) NDB D) VOR

[GNAV-PT05 #13] With which of the following radio navigation aids is magnetic variation applied at the ground station (select all that apply)? A) DME B) Land features C) VDF D) NDB E) AWR F) VOR

[GNAV-PT05 #14] With which of the following aids to navigation is magnetic variation applied at the aircraft (select all that apply)? A) Land features B) DME C) AWR D) NDB E) VOR F) VDF

[GNAV-PT05 #15] Which of the following is a magnetic bearing from the station? A) QTE B) QUJ C) QDR D) QDM

[GNAV-PT05 #16] Which of the following is a true bearing to the station? A) QUJ B) QDR C) QDM D) QTE

[GNAV-PT05 #17] What is a line of position on an aeronautical chart? A) A QDM from a navaid or feature to an aircraft position. B) A rhumb line from a navaid or feature to an aircraft position. C) A rhumb line from an aircraft to a navaid. D) A great circle from a navaid or feature to an aircraft position.

[GNAV-PT05 #18] __________ - Magnetic bearing from the navaid to the aircraft’s position, measured at the navaid. A) Radial B) Bearing C) Range D) Line of Position

[GNAV-PT05 #19] What is the Q Code for magnetic bearing from a navaid or feature? A) QUJ B) QDR C) QDM D) QTE

[GNAV-PT05 #20] What does the abbreviation DME stand for? A) Direct Monitoring Equipment B) Direct Measuring Equipment C) Distance Measuring Equipment D) Distance Monitoring Equipment

[GNAV-PT05 #21] The sighting angle to a feature at sea level is estimated as being 10°. The aircraft is currently at FL 200. What is the approximate distance to the feature? A) 15 nm B) 20 nm C) 25 nm D) 10 nm

[GNAV-PT05 #22] Referring to IFR Chart E(LO)2, calculate the average magnetic track from KILKENNY (EIKK - N52°39′ W007°17′) to KERRY (EIKY - N52°11′ W009°31′)? A) 251°M B) 247°M C) 075°M D) 255°M

[GNAV-PT05 #23] Referring to IFR Chart E(LO)2, what is the approximate the aircraft position, given the following 2 radials: SHANNON VOR/DME (SHA - N52°43′ W008°53′) - R-102° and CORK VOR/DME (CRK - N51°50′ W008°29′) - R-025°. A) N52°50′ W007°50′ B) N52°40′ W008°10′ C) N52°30′ W008°10′ D) N52°40′ W008°00′

[GNAV-PT05 #24] An aircraft’s estimated ground speed is 180 kt. At 13.40 UTC an NDB is on a relative bearing of 030° and at 13.55 UTC on a relative bearing of 060°. What is the range to the NDB at 13.55 UTC? A) 45 nm B) 35 nm C) 25 nm D) 55 nm

[GNAV-PT05 #25] An aircraft is following a magnetic track of 110°M. At 17.35 UTC, it crosses the R- 350 radial from LBA VOR/DME, at a range of 40 nm. At 17.47 UTC, it crosses the R-050 radial from LBA, again, at a range of 40 nm. What is its groundspeed when passing the R-020 radial? A) 210 kt B) 190 kt C) 220 kt D) 200 kt

[GNAV-PT05 #26] What datum is used for the measurement of average true bearings between two positions on aeronautical charts? A) The observer's local meridian of longitude, at the mid-point B) The Greenwich Meridian, transferred parallel to the observer's location, at the mid- point C) Any meridian of longitude D) The observer's magnetic meridian, at the mid-point

[GNAV-PT05 #27] What datum is used for the measurement of average magnetic bearings between two positions on aeronautical charts? A) The observer's local meridian of longitude, at the mid-point B) The observer's magnetic meridian, at the mid-point C) Any meridian of longitude D) The Greenwich Meridian, transferred parallel to the observer's location, at the mid- point

[GNAV-PT05 #28] Which of the following may be used to obtain an unambiguous position fix? A) 2 x DME ranges B) 2 x reciprocal radials from 2 x VORs C) 2 x lines of position from 2 x landmarks D) 2 x lines of position from 1 x landmark

[GNAV-PT05 #29] How may the difference between a dead reckoning position and a position fix be used to refine navigation solutions? A) Measuring planned track and track made good together with actual TAS and distance flown over a pre-determined period of time to calculate an accurate wind vector B) Using the Direct To feature on your GNSS receiver (or Sky Demon) to provide an accurate updated track and heading from your present position to your destination and using this information to calculate an accurate updated wind vector C) Requesting updated position fixes plus actual wind vectors for each leg of flight from ATC D) Measuring planned and actual heading together with planned and actual TAS over a pre- determined period of time

[GNAV-PT05 #30] Which of the following may be used to calculate the actual GS during flight? A) (Time to fly between waypoints x 60) ÷ Distance between waypoints B) Taking the average of change of relative bearing to two features, following a change of heading at an intermediate checkpoint C) Time taken to fly between two positively identified line features perpendicular to your planned track D) Time taken to fly overhead two possibly identified features along your planned track

[GNAV-PT05 #31] How many position lines must be transferred in order to obtain a position fix?

[GNAV-PT05 #32] Refer to Jeppesen GSPRM IFR Chart E(LO)2An aircraft is flying due north in nil wind on a heading of 005°M along the west course of the Republic of Ireland at a GS of 90 kt. The ADF indicates the following bearings to the FOY NDB (N52°34' W009°12'):11.10 UTC - 065°M11.20 UTC - 095°MWhat is the aircraft's position at 11.20 UTC? A) N52°34' W009°56' B) N52°50' W009°54' C) N52°18' W009°55' D) N52°34' W009°35'

[GNAV-PT05 #33] Refer to Jeppesen GSPRM IFR Chart E(LO)2An aircraft is flying in an easterly direction on a heading of 089°M to the south of Sligo (EISG - N) in the Republic of Ireland at a GS of 120 kt. The RBI indicates the following relative bearings to the SLG NDB (N54°43' W008°35'):15.30 UTC - 343°15.45 UTC - 328°What is the aircraft's position at 15.45 UTC? A) IBATU B) ENULA C) NAVEM D) MOPOM

[GNAV-PT05 #34] Refer to Jeppesen GSPRM IFR Chart E(LO)2An aircraft is flying a heading of 053°M in nil wind from the ISLE OF MAN NDB (RWY - N54°05' W004°37'), passing overhead RWY at 16.05 UTC. At 16.19 UTC the RBI indicates the BARROW NDB (WL - N54°33' W003°16') on a relative bearing of 057°. What is the ETA overhead DEAN CROSS (DCS - N54°43' W003°21') DME? A) 16.45 UTC B) 16.58 UTC C) 16.32 UTC D) 16.48 UTC

[GNAV-PT05 #35] Refer to Jeppesen GSPRM IFR Chart E(HI)12 (Ignore chart altitude limitations)An aircraft is flying across open sea with 10° of left drift between RODOS (RDS - N36°21' E028°04') VOR/DME and IRAKLION (IRA - N35°24' E025°12') VOR/DME following the UV57 airway, at an altitude of 3000 ft amsl and at a planned GS of 100 kt. IRAKLION Approach is expecting position reports from you. You depart overhead RDS at 15.55 UTC. 25 nm from RDS, passing LOKNA at 16.11 UTC your DME equipment fails and no distance information is available. A clear signal is being received on the ADF from the KARPATHOS (KRC - N35°26' E027°09') NDB. What approximate relative bearings to KRC identify your position along track and at what times can position reports be confirmed at TIPAS and LABUX? A) 16.39 UTC (RB to KRC = 144°) and 17.10 UTC (RB to KRC = 096°) B) 16.38 UTC (RB to KRC = 239°) and 17.11 UTC (RB to KRC = 199°) C) 16.36 UTC (RB to KRC = 249°) and 17.05 UTC (RB to KRC = 201°) D) 16.39 UTC (RB to KRC = 249°) and 17.10 UTC (RB to KRC = 201°)

[GNAV-PT05 #36] Referring to the CTM graph, an aircraft is descending from FL 200 to FL140 at a constant TAS. What is happening to CAS and MN? A) CAS = increasing, MN = decreasing. B) CAS = decreasing, MN = decreasing. C) CAS = decreasing, MN = increasing. D) CAS = increasing, MN = increasing.

[GNAV-PT05 #37] Referring to the CTM graph, an aircraft is climbing from FL 100 to FL220 at a constant CAS. What is happening to TAS and MN? A) TAS = increasing, MN = increasing. B) TAS = decreasing, MN = increasing. C) TAS = increasing, MN = decreasing. D) TAS = decreasing, MN = decreasing.

[GNAV-PT05 #38] Referring to the CTM graph, an aircraft is descending from FL 340 to FL165 at a reducing MN. What is happening to TAS and CAS? A) TAS = constant, CAS = decreasing. B) TAS = decreasing, CAS = increasing. C) TAS = constant, CAS = constant. D) TAS = decreasing, CAS = constant.

[GNAV-PT05 #39] What is the TAS of an aircraft cruising at FL100 (OAT: +10°C) at a CAS of 145 kt? A) 168 kt B) 125 kt C) 122 kt D) 174 kt

[GNAV-PT05 #40] What is the TAS of an aircraft cruising at FL80 (OAT: 00°C) at a CAS of 130 kt? A) 130 kt B) 147 kt C) 151 kt D) 170 kt

[GNAV-PT05 #41] Using a rule-of-thumb, what is the TAS of an aircraft cruising at FL50 at a CAS of 100 kt? A) 110 kt B) 102 kt C) 101 kt D) 120 kt

[GNAV-PT05 #42] Using a rule-of-thumb, what is the TAS of an aircraft cruising at FL100 at a CAS of 150 kt? A) 153 kt B) 180 kt C) 170 kt D) 110 kt

[GNAV-PT05 #43] What is mach number? A) 1.0 B) Ratio of TAS to Local Speed of Sound. C) Ratio of CAS to TAS x √38.94 D) TAS x √38.94

[GNAV-PT05 #44] What is the formula for calculating the Local Speed of Sound? A) LSS = 38.94 x √Temp (°C). B) LSS = 38.94 x √Temp (K). C) LSS = √38.94 x Temp (K). D) LSS = √38.94 x Temp (°F).

[GNAV-PT05 #45] What is formula for calculating MN? A) MN = TAS ÷ √LSS B) MN = TAS x √LSS C) MN = TAS x LSS D) MN = TAS ÷ LSS

[GNAV-PT05 #46] What is the primary factor affecting mach numbers? A) Pressure. B) Density. C) Humidity. D) Temperature.

[GNAV-PT05 #47] What is the TAS of an aircraft cruising at FL140 (OAT: -10°C) at a CAS of 200 kt? A) 160 kt B) 248 kt C) 258 kt D) 242 kt

[GNAV-PT05 #48] What is the TAS of an aircraft cruising at FL340 (OAT: -50°C) at a CAS of 320 kt? A) 610 kt B) 575 kt C) 529 kt D) 555 kt

[GNAV-PT05 #49] What is the MN of an aircraft cruising at FL250 (OAT: ISA -5°C) at a TAS of 445 kt? A) M 0.75 B) M 0.65 C) M 0.26 D) M 0.72

[GNAV-PT05 #50] What is the TAS of an aircraft cruising at FL380 (OAT: ISA +20°C) at M 0.84? A) 432 kt B) 498 kt C) 503 kt D) 599 kt

[GNAV-PT05 #51] How are CAS and TAS related on the CRP-5? A) AIRSPEED window for Pressure Altitude and OAT - CAS on outer scale and TAS on inner scale B) AIRSPEED window for Pressure Altitude and ISA Temperature - CAS on inner scale and TAS on outer scale C) ALTITUDE window for Pressure Altitude and OAT - CAS on outer scale and TAS on inner scale D) AIRSPEED window for Pressure Altitude and OAT - CAS on inner scale and TAS on outer scale

[GNAV-PT05 #52] How are MN and TAS related on the CRP-5? A) AIRSPEED window for Mach No Index and OAT - CAS on inner scale and TAS on outer scale B) AIRSPEED window for Mach No Index and OAT - CAS on outer scale and TAS on inner scale C) ALTITUDE window for Pressure Altitude and OAT - CAS on outer scale and TAS on inner scale D) AIRSPEED window for Mach No Index and ISA Temperature - CAS on inner scale and TAS on outer scale

[GNAV-PT05 #53] Between which airspeeds is compressibility compression applied? A) CAS and TAS B) IAS and CAS C) CAS and RAS D) TAS and MN

[GNAV-PT05 #54] Which of the following may be used interchangeably and always considered as being the same? A) CAS and RAS B) EAS and TAS C) CAS and TAS D) RAS and TAS

[GNAV-PT05 #55] At what airspeed does compressibility correction need to be taken into account? A) CAS = 300 kt B) TAS = 300 kt C) TAS = 350 kt D) TAS = 200 kt

[GNAV-PT05 #56] Which of the following terms defines the planned path of an aircraft over the ground? A) Track Made Good (TMG). B) Proposed Track (PTK). C) Planned Heading (HDG). D) Desired Track (DTK).

[GNAV-PT05 #57] Which of the following terms defines the planned direction of an aircraft in flight? A) Track Made Good (TMG). B) Relative Bearing (RB). C) Track (TK). D) Heading (HDG).

[GNAV-PT05 #58] Given that magnetic variation = 16°W and compass deviation = 2°W, planned track = 328°T and planned heading = 316°M, what is the wind correction angle? A) 012° Right. B) 030° Left. C) 030° Right. D) 028° Left.

[GNAV-PT05 #59] An aircraft is flying due west between 2 waypoints, A and B, over a distance of 140 nm. At the planned ETO for B, the aircraft’s position is fixed as being 3.5 nm north of B. What is the TEA? A) 3.0° B) 1.5° C) 2.5° D) 1.0°

[GNAV-PT05 #60] An aircraft is flying due west between 2 waypoints, A and B, over a distance of 90 nm. At the planned ETO for B, the aircraft’s position is fixed as being 3 nm north of B. What is the TEA? A) 2° B) 3° C) 4° D) 1°

[GNAV-PT05 #61] Given magnetic variation = 2°W, an aircraft is flying between A (N58°30’ W030°30’) and B (N60°00’ W030°30’) in nil wind. Variation has been applied in the wrong direction and the aircraft is flying on an incorrect heading of 358°M. What is the approximate position of the aircraft at the planned ETO for B? A) N60°00’ W030°24’ B) N60°00’ W030°18’ C) N60°00’ W030°42’ D) N60°00’ W030°36’

[GNAV-PT05 #62] Given magnetic variation = 3°E, an aircraft is flying between A (N58°30’ W030°30’) and B (N60°00’ W030°30’) in nil wind. Variation has been applied in the wrong direction and the aircraft is flying on an incorrect heading of 003°M. What is the approximate position of the aircraft at the planned ETO for B? A) N60°00’ W030°48’ B) N60°00’ W030°39’ C) N60°00’ W030°21’ D) N60°00’ W030°12’

[GNAV-PT05 #63] What are the velocity vectors commonly used in navigation? A) Wind, Air, Earth B) Air, Heading, Drift C) Ground. Heading, Drift D) Air, Ground, Wind

[GNAV-PT05 #64] Which one of the following speeds describes the speed of the aircraft relative to the air mass through which is flying? A) IAS B) TAS C) MN D) CAS

[GNAV-PT05 #65] Which one of the following describes the planned direction of aircraft movement relative to the surface of the Earth? A) TRK B) HDG C) TMC D) DTK

[GNAV-PT05 #66] Which one of the following describes the actual direction of aircraft movement relative to surface of the Earth? A) DTK B) HDG C) TMG D) TRK

[GNAV-PT05 #67] Which one of the following describes the angle applied to the track to calculate the heading? A) WCA B) DA C) TMG D) Desired Track

[GNAV-PT05 #68] What is the relationship between Wind Correction Angle and Drift? A) Opposite magnitude, opposite sign B) Equal sign, opposite magnitude C) Equal magnitude, opposite sign D) Equal sign, equal magnitude

[GNAV-PT05 #69] What is the 1-in-60 rule? A) For every 1° of TEA, an aircraft will be 1 nm off track over a distance of 60 km along track. B) For every 1° of TEA, an aircraft will be 1 km off track over a distance of 60 nm along track. C) For every 1° of TEA, an aircraft will be 2 nm off track over a distance of 30 nm along track. D) For every 1° of TEA, an aircraft will be 1 nm off track over a distance of 60 nm along track.

[GNAV-PT05 #70] How is track error angle calculated? A) TEA = (Distance Along Track x Distance Off Track) ÷ 60 B) TEA = (Distance Off Track ÷ Distance Along Track) x 60 C) TEA = (Distance Off Track x Distance Along Track) ÷ 60 D) TEA = (Distance Along Track ÷ Distance Off Track) x 60

[GNAV-PT05 #71] Determine the wind direction/velocity (°T), given: TAS:135 kt Magnetic track: 144° Variation: 12°W Drift angle: 6°L Headwind: 15 kt

[GNAV-PT05 #72] An aircraft is flying at FL70 at an OAT of +25°C. Determine the change in TAS when the CAS is reduced from 130 kt to 105 kt:

[GNAV-PT05 #73] Given: Distance from point A to B: 420 NM Ground speed: 140 knots TAS: 120 knots Calculate the flight time from position A to B.

[GNAV-PT05 #74] An aircraft with a constant TAS of 180 kt, initially follows a magnetic track of 250°M, because of a drift 8°L. After turning, it follows a magnetic track of 340°M, because of a drift 8°R. What is the wind velocity and direction (T°), if magnetic variation is 10° East?

[GNAV-PT05 #75] Given the following information, calculate the heading (T) and groundspeed: TAS: 465 kt Track: 007°T Wind velocity: 300°T /80 kt

[GNAV-PT05 #76] The maximum difference in distance when proceeding along the great circle between two positions, instead of the rhumb line, will occur

[GNAV-PT05 #77] What is the Earth convergency for a straight line between position A (37°45'S, 170°25'W) and position B (37°45'S 168°35'E)?

[GNAV-PT05 #78] Where on a Direct Mercator projection is the chart convergency correct compared to the earth convergency?

[GNAV-PT05 #79] Which statement is correct as regards the properties of a Great Circle?

[GNAV-PT05 #80] The nominal scale of a Lambert conformal conic chart is the:

[GNAV-PT05 #81] Two places are situated on the same parallel in the Southern Hemisphere. The great circle, rhumb line and the straight line between these places are drawn on a Polar Stereographic Projection. Which statement is correct?

[GNAV-PT05 #82] What is the convergency factor on a Direct Mercator projection?

[GNAV-PT05 #83] Given: TAS = 485 kt, OAT = ISA +10°C, FL 410. Calculate the Mach Number?

[GNAV-PT05 #84] Given: GS = 480 kt. Distance from A to B = 5360 NM. What is the time from A to B?

[GNAV-PT05 #85] On a Polar Stereographic chart showing the South Pole, a straight line joins position A 70°S, 065°E to position B 70°S, 025°W. What is the approximate true track on departure from position A?

[GNAV-PT05 #86] Given the following information, what is the true bearing of the aircraft's position line from the NDB plotted on a Polar Stereographic chart? Aircraft position: 70°N, 035°E NDB position: 70°N, 050°'E Variation at the aircraft: 32°E Variation at the NDB: 60°E Deviation: +2°

[GNAV-PT05 #87] How would a great circle between 80°00'N, 010°00'W and 80°00'N, 020°00'W appear on a Polar Stereographic chart?

[GNAV-PT05 #88] On a Lambert conformal conic chart the convergence of the meridians:

[GNAV-PT05 #89] A rhumb line on a Direct Mercator chart appears as a:

[GNAV-PT05 #90] On a Lambert conformal conic projection with two standard parallels: