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ATPL GENERAL NAV QUESTION BANK

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ATPL GENERAL NAV QUESTION BANK
ATPL GENERAL NAV QUESTION BANK
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#1. A DRMC will not be affected by

#2. When turning from SW to SE at 45N, the roll out should occur at

#3. What will compass indicate when the aircraft lands on westerly heading in Northern hemisphere

#4. An observer is situated on parallel of 231/2*S. Which statement about the passage of the apparent Sun in relation to this position is correct?

#5. Main cause of cumulative track errors in an INS are:

#6. IRS is different from INS

#7. The alignment time in an IRS takes longer when the a/c is:

#8. On a direct Mercator chart; GC can be represented as:

#9. Purpose of compass swing is

#10. Mark the correct statement on meridians:

#11. What is the approximate compression of the Earth?

#12. At 60*S on a MC; the convergence is:

#13. Modern system employ ring laser gyros because they offer

#14. When landing in southerly direction the magnetic compass will indicate

#15. A Graticule is the name given to:

#16. The purpose of FMS is to provide:

#17. Any Meridian is a :

#18. In an IRS system

#19. A rate - integrating gyro is used in

#20. A runway in NH is on agonic lines and HDG 045. If an aircraft takes off in still air, what will be the northerly turning error?

#21. An Agonic line:

#22. What will compass indicate when the aircraft lands on a Westerly HDG on the magnetic equator?

#23. While carrying out a turn at magnetic equator with DRMC, there will be

#24. The compass card of E-type compass is shaped to match the inside profile of the bowl in order to

#25. When does the Rhumb line & GC track coincide on the surface of the Earth?

#26. Which of the following is the correct statement about earth's magnetic field?

#27. Formula of scale is:

#28. INS errors are classified as "Bounded"& "Unbounded errors:

#29. The duration of twilight:

#30. In the DRMC the effect of dip is correctly by

#31. How many small circles can be drawn between any two points on a sphere?

#32. The exact equation for calculating the convergence between the two meriadians running through two different positions is ; (TTin is True Track Initial & TTfin is True Track Final)

#33. When you have abeam winds

#34. When flying on Westerly GC track in the SH; you will:

#35. On Earth's ellipsoid one degree of latitude near the equator is:

#36. A parallel of latitude is a :

#37. DPNR

#38. When the length of the day is measured with reference to the passage of apparent Sun:

#39. The "Equation of Time" states:

#40. The primary emergency for which DPNR calculated is

#41. Day light saving time ( Summer time ):

#42. What is the effect of reducing TAS if there is a headwind component on DCP

#43. Compared to still air conditions the CP with strong winds 90* to the track will be

#44. Seasons are caused due to

#45. The horizontal component of earth's magnetic field:

#46. What is the highest latitude on the Earth at which the Sun can be vertically O/H?

#47. Which of the following statements is true concerning the position displayed by IRS?

#48. At a specific location the value of magnetic variation:

#49. Mark the correct statement

#50. You cross the IDL from 160W to 165E

#51. Earths orbit and its time of orbit around the sun is

#52. How do you define standard time in relation to UTC?

#53. At what appx date the earth is farthest away from sun

#54. Day and night have different duration throughout the year, reasons are

#55. On a Mercator chart the shapes are correct

#56. At what latitude does the maximum difference occur between the Geodetic & Geocentric latitude?

#57. The computer of North referenced INS provides compensation fo

#58. What is the dip angle at the South magnetic pole?

#59. Lines of latitude on a chart are always:

#60. The angle between a straight line on MC & the corresponding GC is:

#61. Isogrives are lines joining places of:

#62. The chart that is generally used for navigation in polar areas is based on:

#63. When a magnetized compass needle is freely suspended in the Earth's magnetic field & affected by extraneous magnetic influence,it will align itself with:

#64. On a Lambert chart, the Convergency is equal to earth's Convergency at---------- and the scale is correct at ----------

#65. A line running through positions where the magnetic & true meridians are parallel is called:

#66. Airfield elevation 4000', QNH 1003 hpa, the MOCA is 8500', assume 30'/hpa. What is the minimum pressure altitude required to be maintained?

#67. Given track 185*T, var 9*E, a/c Hdg 182* M. Which is the lowest suitable ICAO IFT cruising level?

#68. What does the sensor of INS/IRS measure?

#69. Sidereal day is measured with reference to

#70. At what latitude is the length of 1 minute of arc along a meridian equals 1 NM (1852m)?

#71. How does the scale vary in a Mearcator chart?

#72. The value of magnetic variation changes with time. This is due to:

#73. On a Mercator chart, the scale:

#74. On a MC a particular length is measured at 30*N. What Earth distance the same length be if measured at 60*N?

#75. An aircraft flies from position 60S 90W at a ground distance of 60nm due east, 60nm due south then 60nm due west then 60nm north finally. The position reached in the end of the flight will be

#76. What is the standard formula for convergency?

#77. If the TAS is increased in nil wind conditions, the effect on CP will be

#78. A length of nautical mile as per ICAO is:

#79. The purpose of compass calibration is to reduce difference, if any between:

#80. A Non-perspective chart:

#81. DRMC is made aperiodic (Dead bead) by:

#82. How does the chart convergence change with latitude in Lambert projection?

#83. Given the following: "D" is the flight distance "X" is the distance to point of Equal time Gso is G/S out GSr is G/S return. The correct formula to find distance to PET is:

#84. The data that needs to be inserted in an IRS for it to enable successful alignment:

#85. How much is the polar diameter different from equatorial diameter of the Earth?

#86. Which of the following statements is correct with regard to the operation of flight planning computers? 1) The computer can file the ATC flight plan 2) In the event of in-flight re-routing, computer produces a new flight plan.

#87. Sensitivity of DRMC is:

#88. Aircraft in NH makes an accurate rate one turn to the right. If initial heading was 330 deg, after 30 seconds of the turn the DRMC should read:

#89. Which of the following items are included in the Dry operating mass?

#90. Horizontal component of Earth's magnetic field:

#91. Which of the following is true about variation?

#92. When turning from NW to NE in the Southern Hemisphere, the roll-out must be performed on HDG

#93. On a lambert conical chart the convergence is

#94. Turning right from 320°(C) to 050°(C) in S.H, the DRMC will

#95. To obtain HDG information from GYRO stabilized platform, Gyros should be

#96. When & where are IRS position updated?

#97. At the second stage of integration E/W speed is converted into E/W distance gone. To convert departure into change of longitude it has to

#98. A longitude error in an INS will cause

#99. An INS in align mode will

#100. In order to align a strap-down inertial system it is required to insert the accurate geographical co-ordinates. This is necessary to

#101. Wind direction is displayed in all EHSI modes and is oriented to

#102. An a/c compass must be swung:

#103. Disadvantage of RLG over normal system is

#104. What is the reason for seasonal changes?

#105. Where on MC the convergence is correct compared to Earth convergency?

#106. Final reserve fuel for an a/c with reciprocating engines should be:

#107. The duration of Sidereal day is:

#108. A GC has a Northern Vertex of 50*N 100*W. The Southern vertex shall be:

#109. From departure point, distance to the point of equal time is:

#110. A pilot accidently turns off INS in flight & turns it ON a few minutes later:

#111. The magnetic North Pole seems to rotate around the geographical North Pole at a rate approximately:

#112. A negative magnetic variation signifies that:

#113. How long does it normally take to align IRS at mid latitudes?

#114. The aim of compass swing is to:

#115. In which IRS mode does Gyro-compassing take place?

#116. When converting True HDG to Mag. HDG, Var is applied.

#117. What will compass indicate when the a/c lands on westerly Hdg. In NH?

#118. Amber alert light on INS display unit

#119. A nautical mile is

#120. A length of N.M

#121. A length of N.M

#122. To remove positive co-efficient 'A' the DRMC bowl should be

#123. Compensation for co-efficient 'A' in RIC is carried out by

#124. -40°F converted into degrees Celsius is

#125. Some IRS are known as strapped down. This means:

#126. Permanent magnetism in the a/c arises mainly from:

#127. Where will you expect the RL track and GC track to be the same?

#128. What is the duration of Civil Twilight?

#129. On which projection it is not possible to indicate North pole?

#130. Sequence for switching INS is:-

#131. Purpose of compass swing is:

#132. When decelerating on Westerly Hdg in the NH compass card of DRMC will turn:

#133. Length of Sidereal Year is?

#134. Maximum difference between Mean and Apparent time is:-

#135. When it is Winter Solstice in S.H., the declination of Sun shall be:-

#136. The definition of LMT is :-

#137. LMT always changes by a day when crossing?

#138. The angle between true North & magnetic North is known as:

#139. On Mid-winder Day in NH; Sun will be O/H?

#140. On June 22nd, what is the lowest Northerly latitude in (Air Almanac) at which Sun will be above the Horizon for 24 Hrs?

#141. On Dec 22nd, what is the lowest Northerly Latitude at which Sun never rises or sets?

#142. On a Mid Winter day in N.H, the Sun will be O/H:-

#143. An aircraft in S.H turns from 045°(C) to 315°(C) using a DGI. At the end of turn the DRMC will read ---------- than 315° and liquid swirl will ------ the effect.

#144. In a standby Compass; the magnet is immersed in a transparent liquid. What is the purpose?

#145. For flight planning purposes the landing mass at alternate is taken as:

#146. In FMS, the phases of flights are :-

#147. Position error of stand alone inertial system is approximately:

#148. Setting 0 (Zero) Cost Index in FMS gives:-

#149. In FMS, what does the term Managed guidance means?

#150. What happens if FMC auto tunes DME and it doesn't receive a satisfactory code?

#151. FMC is operating in VNAV and LNAV modes. Reaches a Wpt beyond which no route has been fed. What will happen?

#152. In FMS the CDU's are used during pre-flight to:

#153. Maximum difference between Mean Noon and Apparent Noon is in the months:-

#154. Nautical twilight begins and Civil twilight ends when the center of Sun is:-

#155. An a/c is flying from A to B. In cruise the CAS is 150 kts, TAS 180 kts & average ground speed is 210 kts. The speed box of filed flight plan plan shall indicate:

#156. The purpose of Decision Point Procedure (DPP) is:

#157. The most important property a projection should possess for navigation is:

#158. Sidereal day is defined as the length of time taken by 360° rotation of the Earth about its axis between two successive transits of a meridian with reference to:-

#159. What is the formula for Conversion angle?

#160. In ATS flight plan item 15, when entering route for which SID & STAR procedures exist:

#161. How does FMS calculate the G/Speed?

#162. When the Sun's declination is Northerly:

#163. Diameter of the Earth is approximately:

#164. In flight the INS is accidentally switched OFF. It is switched ON again. After this incident the INS:

#165. How is FMC position calculated?

#166. What measurement is used to carry out alignment of INS?

#167. In the event of a delay in excess of ....... of .....for a controlled flight or a delay of ........ for an uncontrolled flight for which a flight plan has been submitted ; the flight plan should be amended or a new flight plan submitted & the old flight plan cancelled whichever is appropriate:

#168. In order to fly from position 'A' 10°N 30° W to 'B' 30° N 50°W maintaining a constant true track, it is necessary to fly:-

#169. A magnetic compass needle is freely suspended in the Earth's magnetic field.When free from extraneous magnetic influence it will align itself with:

#170. Mark the correct statement:

#171. In INS at the second stage of integration of E/W speed is converted into distance gone. To convert departure into change of longitude it has to:

#172. Crossing IDL on Easterly track:-

#173. An island is observed to be 15* to the left, a/c Hdg is 120*(M), Var. 17*W. true bearing from a/c to the island is :

#174. Item 7 of the flight plan in accordance with PANS-RAC (DOC4444) should always include, for an a/c equipped with a ratio:

#175. In ATS flight plan item 15, in order to define a position from VOR, it should consist

#176. If decision point procedure is applied for flight planning:

#177. FMC position will be at its most inaccurate :

#178. The angular difference between the geographic meridian and magnetic meridian running through the same position is called:

#179. What is the convergency between 'A' 80°N 15° E and 'B' 80° N 15° W on the Earth and the Polar Streographic chart? Earth Polar

#180. You have calculated PNR for a flight having all negative WC. During flight you experience WC is stronger but coming from the same direction. Mark correct statement:

#181. During a low level flight two parallel roads are crossed at right angles. The crossing time between these two roads can be used to find a/c's:

#182. On a M. Chart. G.C is curve concave to the :

#183. Chart convergency on P.Stereographic is in general:

#184. Polar chart convergency and Earth convergency is correct at:

#185. On an ATC flight plan the letter "Y" is used to indicate that the flight is carried out under following flight rules:

#186. In appropriate box of ATC flight plan the endurance must indicate the time corresponding to:

#187. An a/c is accelerating on a westerly Hdg in the NH, the effect on DRMC is:

#188. Function of INS stable platform is to:

#189. An FMS is:

#190. In SH the effect of acceleration errors is greatest on headings:

#191. A/c magnetism caused by hard iron:

#192. Angular difference on Lambert chart between the arrival and departure track is equal to:-

#193. Length of Sidereal year is:

#194. When is the DRMC most effective?

#195. Where do Isogonal lines converge?

#196. What is the effect on DRMC when a/c accelerates in Westerly direction on the equator?

#197. Platform of INS is maintained at right angles to the local vertical by applying corrections of :-

#198. Which mode selection on CDU of INS is required to display initial G.C. track?

#199. On triple IRS, the present position on the CDU

#200. ATT mode in IRS is a back up mode providing:

#201. On a Lambert chart a straight line can be approximated to:

#202. On a Lambert chart the standard parallels are located at 50 deg N & 62 deg N. What is the latitude of parallel of origin?

#203. What is the source of variation information in INS/IRS?

#204. In Lambert orthomorphic projection, the scale is:

#205. Which of the following navigation system can be utilized as a sole independent means of navigation?

#206. When can a Pilot change data in FMS database?

#207. What is the meaning of Standard time?

#208. Aircraft position determined by radio navigation by FMC is derived from:

#209. An aircraft Approach Category is calculated on the basis of:-

#210. Airspeeds mentioned for approach category are:

#211. In order to convert True HDG to Mag. HDG a compass card and

#212. To calculate the LMT at place, reference is always taken from:

#213. Gyro-compassing in an INS:

#214. Which of the following alternative is correct when you cross IDL?

#215. Magnetic compass calibration is carried out to reduce:

#216. The zero fuel mass is:

#217. What is the definition of EAT?

#218. Flying from East to West longitude. On crossing IDL:

#219. Aircraft flies Wpt 5 53N 50W to Wpt 6 53N 40W with autopilot coupled to INS. When crossing 45W the latitude indicated by INS will be:

#220. During initialization of INS the aircraft should not be moved until the

#221. At what time of the year the length of the day light hours change most rapidly:

#222. Double integration of output from E/W accelerometers in INS in NAV mode gives:

#223. Track 020 (T). W/V 220/30. TAS 250kts. Mean fuel flow 8200 Kg/hr. Calculate GFF.

#224. At TAS of 500 kts ram rise of air temperature can be expected of:

#225. In Earth magnetic field, the following quantities are given to H & Z components:

#226. Three components of permanent magnetism are:

#227. In turns about East & West , E-type compass reading errors are:

#228. Principle of Schuler tuning is applicable to:

#229. In ATC VFR flight plan, the total estimated time is:

#230. An INS with accelerometers aligned N/S & E/W is limited to use below 82*N/S b'coz:

#231. A time difference of 5hrs 20 minutes & 20 seconds is equivalent to D'long of:

#232. A Rumbh line cuts all meridians at the same angle. This gives:

#233. What is the approximate circumference of the Earth?

#234. When initial position is put into an INS:

#235. When computing weight & balance, the BEM includes weight of the airframe, engines and all installed optional equipment and:

#236. What is the DOM of an a/c?

#237. The coordinates of a position are 48 50'N 002 16.5'E. What are the coordinates of its antipode position?

#238. At the magnetic equator:

#239. The selection on an IRS mode panel are used in the following order:

#240. Which of the following statement is correct concerning turning errors in DRMC:

#241. Equivalent of 70 m/sec is approximately:

#242. An a/c equipped with INS files with INS1 coupled with A/P 1. Both INS are navigating from wpt A to B. The INS CDU show: XTK on INS 1=0, XTK on INS 2 8L What can be deduced from this information?

#243. To indicate in ATC flight plan that you would overfly waypoint Tango at 350kts at 280, you will write?

#244. Nominal scale of a Lambert chart is:

#245. RF scale is 1) 1: 5000000 & RF scale 2) is 1: 250000. Which is large scale chart?

#246. To remove co-efficient + B, micro adjuster should be turned:

#247. If deviation is - 3 deg & variation is 3deg E:

#248. True track 192* variation 7E, drift angle 5* left. What magnetic heading is required to maintain given track?

#249. Heading 060* (M) variation 8* W drift angle 4* Right. Find true track:

#250. If SELCAL is prescribed , in which section of ATC flight plan will SELCAL code be entered?

#251. You are flying VER & uncertain of your position; what's the best course of action?

#252. The correct formula for Dip is:

#253. Which of the following is the correct formula to calculate Ground dist Gone?

#254. Aircraft travels 2.5 statute miles in 47 seconds. What is the G/S?

#255. Aircraft G/S 135kkts. What distance would it travel in 1 minute & 45 seconds?

#256. Maximum difference between Mean and Apparent time is:

#257. When it is winter Solstice in SH, the declination of the Sun will to:

#258. The position used by FMC is:

#259. Graticule of Direct Mercator chart is:

#260. A rhumb line is best defined as:

#261. A parallel of latitude is a:

#262. You are in the NH, heading west & the a/c is accelerating. Will a DRMC over read or under read? Will the compass indicate a turn towards North or South? Compass Indicate turn to

#263. Which of the following can be stored as a five letter wpt identifiers through the CDU of EFIS?

#264. Wake turbulence category is the function of:

#265. A MC is suitable for topographical charts. This is true :

#266. A cost index is:

#267. Scale on Polar stereographic chart varies as:

#268. To improve horizontality of DRMC; magnet assembly is suspendet from a point:

#269. To improve horizontality of DRMC; magnet assembly is suspended from a point:

#270. In the ATC flight plan item 15 for a flight along a designated route, where the departure aerodrome is not on or connected to that route:

#271. In NH an a/c on Easterly Hdg decelerates. What happens to compass card & its reading?

#272. Turning error in a DRMC is caused by:

#273. You are flying from A 30*S20*E to B 20*W. At what longitude will the GC track & RL track be same?

#274. Prior to an IFR flight, when filling in the ICAO flight plan the time information to be entered in box 13 is:

#275. Directive force of Earth's magnetic field:

#276. Which of the following statement regarding loss of alignment of INS/IRS is correct?

#277. RL track from A to B is 130*. Both places are in SH. What is GC track of B from A?

#278. LMT of a place is 0630hrs ahead of GMT, find longitude of the place

#279. A chart is said to be Orthomorphic when:

#280. As the latitude increases the effect of Coriolis force

#281. If your destination airport has no ICAO indicator,in the appropriate box of ATC flight plan should write:

#282. In ICAO ATC flight plan the letter " S " in equipment column indicates:

#283. Travelling away from equator in E/W direction, one deg of longitude varies as:

#284. When using Decision Point procedure; Your reduce the:

#285. Representative fraction on M.Chart is maximum at:

#286. Repetitive flight plans may be used for __________ flights with a high degree of stability over the same days of consecutive weeks on at least __________ occasions.

#287. In ATS flight plan item 15 (ROUTE) the latitude & longitude of a significant point at 41*35' N 4*15' E should be entered as:

#288. Period of validity of data base of FMC is:

#289. Aircraft flies from 60*N 170*E to 60*N 175*W, crossing the IDL the observer should:

#290. In an IFT flight if you deviate from TAS & time date in flight plan, the minimum deviations that should be reported to ATC are:

#291. A kilometer is:

#292. Mark the correct statement

#293. Meridian spacing at latitude theta is:

#294. Aircraft deviation card shows that residual deviation on Hdg 145* is 3*E. In order to fly Hdg 245* (M), the Pilot must steer compass Hdg:

#295. Select the correct statement:

#296. On North Heading, magnet lying in fore & aft axis with blue polarity ahead of the compass position:

#297. Time difference between A & B is 8hrs 30 minutes. A is ahead of B in time. Longitude of B is 35*E. Find the longitude of A.

#298. Which is the highest latitude at which the Sun will rise and set every day?

#299. An a/c is on an IFR flight plan, the flight is to be changed from IFR to VER, is it possible?

#300. A magnetic compass must be swung after :

#301. One of the factors causing errors in DRMC is :

#302. Length of nautical mile is:

#303. How can deviation be determined by using DRMC?

#304. What is the change in longitude from A 45*N 165*30'E to B 45*N 155*40'W?

#305. A current flight plan is a:

#306. In remote indicating magnetic compass the amount of deviation caused by the a/c magnetism & electrical circuits may be minimized by:

#307. Component Q is + when aircraft's permanent magnetism is equivalent to blue pole:

#308. Maximum effect of component P is on:

#309. Co-efficient A affects :

#310. What is Schular period?

#311. IN the ATS flight plan in item 15 when entering route for which SID and STAR procedure exist:

#312. Ring laser gyros use dither (piezo-electric) motors to:

#313. Product of first integration of E/W acceleration sensed by an INS system is:

#314. When the magnetic NP is East of True NP, the variation is:

#315. Errors of INS are:

#316. In an INS TAS input is:

#317. Mark the correct statement regarding computerized flight plan.

#318. When is IRS position updated?

#319. The ALIGN mode of INS mode selector:

#320. What is the length of 1* of longitude at 60*S?

#321. If on Lambert chart 1" represents 5nm along the standard parallels; how much distance would it represent outside standard parallels?

#322. How does the convergence of any two meridians on the Earth change with varying latitude?

#323. A turbo-jet a/c is enroute to an isolated destination, besides taxi, trip & contingency fuel , what fuel is required to be carried on board?

#324. How long before start up for an intercontinental flight to be routed via North Atlantic are you required to file a flight plan?

#325. Crossing IDL on Easterly track:

#326. When is the DRMC most effective?

#327. When an ATS flight plan has been submitted for a controlled flight, the plan should be amended or cancelled in the event of the off-block time is delayed by:

#328. A pilot lands at an aerodrome other than the destination specified in ICAO flight plan, he must ensure that the ATS unit at destination is informed within specified time of his planned ETA at destination. The time is:

#329. When decelerating on Westerly heading in the NH the compass card of DRMC will turn:

#330. On the Earth's ellipsoid one degree of latitude near the equator is:

#331. In the ATS flight plan item 15; it is necessary to enter any point at which change of cruising speed takes place, for this purpose the change of speed is defined as:

#332. Where do isogonal lines converge?

#333. You operate a flight with a/c MTOW of less than 136,000kgs but more than 7000kgs. What turbulence category will you indicate in ICAO ATC flight plan in item number 9?

#334. When accelerating on westerly Hdg in NH, the compass card of DRMC will turn?

#335. N/S magnetic poles are the only positions on the earth where?

#336. Aircraft in NH on hdg 135* using DRMC executes right rate 1 turn for 30 secs, on what hdg the pilot should roll out of the turn?

#337. If an INS temporarily loses its power supply in flight:

#338. The scale formula is:

#339. A green dotted line on a Jeppesen chart indicates:

#340. Which of the following is true regarding FMC?

#341. ATT mode of IRS is a back up mode for providing:

#342. A climb gradient is defined as the ratio of:

#343. Sun's declination is:

#344. The length of apparent solar day varies continuously throughout the year, the cause is:

#345. The compass needle marked red:

#346. An Isoclinal is a line:

#347. What is the main cause of permanent magnetic in the a/c?

#348. Radio bearing follow:

#349. Directive force of Earth's magnetic field:

#350. Geodetic & Geocentric latitudes coincide:

#351. The Mean time has been introduced in order to:

#352. Your initial cruising speed & level are 300kts & FL 250. At position STP on airway B3 you plan to climb to FL 330 & increase speed to 350kts. How this change would be shown in box 15 of flight plan form?

#353. When initial position is fed in the INS:

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ATPL GENERAL NAV QUESTION BANK
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