Air – DGCA Question Bank For Politics

Prepare for your upcoming PPL CPL & ATPL exam with us easily.

Dgca Question Bank For Pilots

RADIO AIDS AND INSTRUMENTS

adminATPL Question Bank

Results

-
RADIO AIDS AND INSTRUMENTS
RADIO AIDS AND INSTRUMENTS
Share your score!
Tweet your score!
Share to other

HD Quiz powered by harmonic design

#1. Process of aligning the stable platform with local meridian in INS is known as:-

#2. Descending from Fl390 at max ground speed , what will the pilot be limited by:

#3. yaw damping system is necessary in aircraft which:

#4. Automatic stabilizer trim system:-

#5. GPWS mode 5 is inhibited when:-

#6. Mode 7 of EGPWS gives warning of:-

#7. A radio wave is:

#8. During Cat-Il ILS auto-approach, the source for altitude information is:

#9. Which of the following is True:

#10. An A/c is steering MH 335 degree, it’s rbi indicates 355 degree variation in the area is 4 deg west deviation 2 deg east, calculate (1) Magnetic heading to ndb (2) magnetic bearing from NDB (3) true bearing from ndb

#11. You are using hf voice communication and have good two way signal during day ,what must be done to maintain communication at night?

#12. What affects HF range ?

#13. Which emergency frequency is preferred for survival Radio transmission during flight over large oceans?

#14. To double the range of primary radar power required to be increased by a factor of.

#15. GPWS must provide:

#16. Which of the following factors affect the accuracy of ADF?

#17. Which of the following will give max. range from NDB?

#18. NDB emits a NON A2A signal, what should pilot do with BFO switch?

#19. Howcan a pilot reduce the effect of Coastal refraction while flying over sea?

#20. If in zip VOR station has 100 / 30000 written what does it indicate?

#21. Protected range of ndb is valid for?

#22. What is the max range at which adf can be safely used at night?

#23. If in aip VOR station has 100/ 30000 written what does it indicate?

#24. What factors affect vor range?

#25. What factors affect vor accuracy?

#26. Which indication is acceptable if you have tune vor station marked as vot during pre flight test?

#27. GPWS mode 2 gives warning of high terrain closure rate flaps in landing position between …..ft agl &….ft agl

#28. Which of the following has the greatest effect on accuracy of adf bearings?

#29. Frequency band between 108 mhz to 112 mhz contains ? EVEN & ODD

#30. To improve the resolution of radar display it requires

#31. Why the mapping beam of awr is referred to as the cosecant square beam ?

#32. An ac is flying on true track of 090 towards vor located near the equator where magnetic variation is 15 deg east variation at ac is 8 deg east , what is the ac radial?

#33. Why AWR uses frequency of approximately 9 ghz?

#34. What is meaning of swept gain in AWR?

#35. On switching AWR a single line appears on the display, this means

#36. You are heading 080° T when you get range and bearing from awr on a headland 185 nm 30° left of nose , what true bearing do you plot?

#37. You are hdg 345° , var 20° east you take a radar bearing of 30° left of the nose from island what bearing do you plot?

#38. The term drift refers to the wander of the axis of gyro in ?

#39. GPWS may give warnings of : 1 ) excessive sink rate. (2) excessive closure rate with terrain (3) excessive proximity with ground when not in landing configuration (4) excessive angle of bank

#40. How does GPS receiver determine from which satellites is it receiving the signal ? PRM

#41. What does a GPS receiver measure?

#42. . Which of the following is not a GPS error?

#43. Aircraft DME is able to discriminate between pulses intended for itself and pulses intended for other aircraft because:-

#44. Why are SSR transmissions in pairs of pulses?

#45. The availability of 4096 codes in SSR is applicable to:

#46. What does the SPI facility of SSR do?

#47. A height ring in an AWR can be used

#48. What is the normal range of ACAS?

#49. What info is available on ACAS-1

#50. How much warning will TCAS - 1 give a pilot before possible collision

#51. Why is the effect of returns from storms not a problem with SSR?

#52. The advantages of SSR mode S are:

#53. Accuracy of SSR mode C altitude displayed to Air Traffic Controller is:

#54. Compass swing is performed in order to correct for?

#55. Which of the following is not an input to GPWS?

#56. . An a/c is tracking to intercept the ILS localizer inbound on the approach side but outside the published coverage angle

#57. Which of the following will not trigger warning from G.P.W.S?

#58. Temperature is measured in an a/c engines by means of: 1. Thermocouples 2. Mercury 3. Resistive elements 4. Capacitive elements

#59. In a radio altimeter when the system error occurs during approach

#60. An altitude warning system

#61. GPWS will give an altitude alert warning when

#62. What are the basic elements transmitted by GPS satellites?

#63. How should a pilot respond to a TCAS RA?

#64. From where does TCAS obtain its altitude information?

#65. The inputs a pilot will make to the FMC during pre-flight initialization will include:

#66. n an EHSI the navigation information comes from:

#67. An altitude alerting system

#68. The altitude alerting system:

#69. What information will TCAS provide to indicate an intruder aircraft with no altitude reporting facility?

#70. In TCAS corrective RA includes

#71. Radio altimeter are based on principle of

#72. GPWS modes include

#73. Which statement is correct with reference to GPWS?

#74. You are flying from VOR A to VOR B on HDG 120 with VOR tuned to station A. CDI indicates 3 dots to the right midway between A and B you switch to VOR B. What will be the indication of CDI and TO/FROM indicator

#75. In a left turn the ball of the turn coordinator is to the right; what corrective action is required?

#76. When checking the VOR against VOT the correct indications are

#77. An a/c on ILS, has equal amount of deviation on localizer and glide slope. Which-will show greater deflection?

#78. What is the ADC input to FMC?

#79. If during a manoeuvre, satellite being used for position is shadowed by the wing, the on the position will be:

#80. GPWS will provide warning to the pilot if the AC descended below

#81. Time required for GNSS receiver to download satellite Almanac for GPS is:

#82. How does night effect affect ADF?

#83. An engine vibration monitoring system of a turbo-jet a/c, vibration by the engine is

#84. Use of alternate static source fed from within the cabin, static pressure sensed is likely to be:

#85. The properties of a gyro are: 1. Mass 2. Rigidity 3. Inertia 4. Precession 5. Rotational speed

#86. In case of excessive descent rate the GPWS generates following aural warning

#87. Aural alerts associated with mode 4 of GPWS are:

#88. In EGPWS the terrain displayed in magenta indicates

#89. If a manifold pressure gauge consistently registers atmospheric pressure, the probable cause is:

#90. The formula used to determine the height displayed on RA is that the difference in frequency = rate of change of frequency

#91. A temperature sensor has a recovery factor of .95. The temp measured will be equal

#92. VOR indications on an RMI whose deviation is not zero:

#93. Which statement is true?

#94. At a given altitude, the Hysteresis error in an altimeter varies with

#95. The sequence of display accessed on initialization of FMS is:

#96. When DME transponder becomes saturated:

#97. Azimuth resolution in an AWR depends on:

#98. If the computed a/c position becomes less accurate, the EGPWS affected function is

#99. Approximately what height is the G/slope centre line at the MM of a typical ILS?

#100. In Doppler VOR the reference signal is…….the bearing signal is ……and the direction of rotation of the bearing signal is_……..Anti Clocku

#101. When tracking a VOR radial inbound the a/c would fly:

#102. Kinetic energy and Dynamic pressure is denoted by

#103. An a/c is attempting to home to a VOR on radial 064 °, the CDI shows 4 dots right with TO indication & at same time the co-located DME reads 45nm range. Where is the a/c in relation to the required track?

#104. Which of the following can be input to the FMC using maximum of 5 alpha- numerics?

#105. Principle of operation of ILS localizer is that it transmits two over lapping lobes on

#106. The ILS glide slope generates false glide paths because of:

#107. Which statement is true regarding VSI in climb?

#108. QNH IS

#109. Due to Doppler effect an apparent decrease on the transmitted frequency which to the transmitting velocity will occur when;

#110. Advantages of continuous wave (CW) radar over pulse radar systems is:

#111. For VOR & DME to be co-located the aerial separation must not exceed

#112. DME & VOR are frequency paired because

#113. FMC position is most inaccurate

#114. Which of the following co-ordinate systems is used by GPS receiver to determine position (Latitude, Longitude, Altitude)?

#115. In FMC operation, which of the following is true?

#116. Availability of two frequencies in GNSS

#117. Real wander of a gyro can be caused by

#118. In a gyro magnetic compass; from where does torque motor gets its information?

#119. An accuracy of +/- 5? in VOR bearings received at an aircraft is achieved

#120. Primary Flight Display (PFD) information is for?

#121. Below which altitude does the R.A indication on an EADI appear within circular scale as digital read out?

#122. Aim of F/D is to provide information to the Pilot

#123. HDG Hold mode is selected on F/D with course to steer of 180?. Your aircraft is on HDG 160?. The vertical bar of F/D

#124. Aircraft HDG 270°, F/D in HDG mode, new HDG 360° is selected. The vertical bar of F/D

#125. An a/c wishes to track towards a VOR along a radial of 274°; if variation is 10°W; what should the pilot set on the OBS?

#126. In conventional VOR, which of the following statement is correct regarding directional signal:

#127. An air temperature probe may be aspirated in order to:

#128. If the static vent of VSI is blocked during climb the needle will:

#129. Purpose of Auto trim in Auto-Pilot is to

#130. Purpose of Auto Throttle is

#131. An automatic landing system in which landing is continued manually in case . system failure during an automatic approach is called

#132. What happens to A/P system set to VOR HOLD when aircraft flies over cone of confusion?

#133. Aircraft on A/P and ALT. HOLD. Pilot changes the barometric setting on press Altimeter. This will

#134. If only one A/P is employed to control climb, cruise and approach it must be

#135. At what height the A/P be disengaged during semi-automatic landing?

#136. In ATC flight plan, letter 'S' in the equipment box indicates

#137. Thunderstorms will affect which of the following

#138. The RMI indicates the a/c magnetic heading. To convert RMI bearings of NDBs & VORs to true bearing, the correct combination for application of variation is:

#139. The limits of pitch & roll for a modern DGI are respectively

#140. Traffic advisory is

#141. In GPWS MODE 3 audio alert is

#142. the vertical reference of data generation unit is

#143. An alc heading 017°(T) has a small island displayed on AWR at 45nm range on 60° left of azimuth line. To obtain a fix the bearing to plot will be

#144. What Aural indication would be observed when crossing OM on ILS approach?

#145. . In EGPWS Mode 5 G/slope alert is sounded when the aircraft:

#146. If one of the probes in a typical gas turbine engine, EGT sys becomes defective the indications would be:

#147. In TCAS - Il, once a conflict is resolved the R.A is discontinued. How is it indicated to the Pilot?

#148. When is mode 2 of GPWS is activated?

#149. The VOR/DME RNav equipment will give

#150. In TCAS-Il the preventing RA is a resolution advisory:

#151. In TCAS-Il the preventing RA is a resolution advisory:

#152. If a large a/c is side slipping to the starboard & the port static vent is blocked what will the altimeter read?

#153. The GPWS would provide visual & aural warning if the a/c descended:

#154. In RLG the purpose of Dither motor is to

#155. A ground radar with a frequency of 10Ghz would be used for:

#156. An auto flight system which can safely continue with auto landing after a system failure is called:

#157. In RI Compass the annunciator light illuminates when

#158. An a/c is using 2D RNAV, is 23nm from a way point on 50nm leg. The wpt is 45nm from VORDME & the a/c is 37nm from VORDME. The range indicated to the pilot will Be

#159. The electronic display system will have

#160. Inputs to TCAS - Il include

#161. When descending through an isothermal layer at constant CAS: the TAS will?

#162. In Doppler VOR in comparison to conventional VOR, the following is applicable:

#163. Duct propagation

#164. In EICAS the lower unit display fails:

#165. What point on earth would an earth rate wander and transport wander be zero?

#166. Earth Rotation at 45N will cause the spin axis of DGI to move:

#167. What will compass indicate when aircraft lands on westerly HDG on magneti. equator?

#168. In the NH DRMC card of an aircraft decelerating on easterly HDG will turn

#169. If an aircraft accelerates in NH on westerly heading, the card moves indicating a turn to…….

#170. If variation is west

#171. TCAS-Il has inputs from radio altimeter in order to:

#172. When cruising on westerly heading DRMC will indicate:

#173. At magnetic equator, accelerating on westerly HDG, a DRMC will

#174. GPWS must provide

#175. At constant CAS in level flight a fall in ambient temperature will result in:

#176. During climb after take-off from contaminated R/W, if the total pressure probe of ASI is blocked, the indicated airspeed will

#177. . What are the advantages of ADC providing altitude information?

#178. Aircraft executes a rato 1 turn to the right in NH. Initial HDG was 330. After 30secs of the turn the DRMC will read

#179. Aircraft takes off on westerly HDG in NH, a DRMC would

#180. The main advantage of RMI over DRMC is that

#181. Where do the Isogonal lines converge?

#182. When DME transponder becomes saturated:

#183. On IRS selection of ATT mode acts as back up for:

#184. On a triple fit IRS, the present position on the CDU

#185. The platform of an INS is maintained at right angles to the local meridian by applying corrections of

#186. As a result of CADC failure, the INS will no longer provide information about:

#187. Which mode on INS CDU must be selected to display initial great circle track?

#188. When can a pilot change the data in FMS?

#189. FMC position is

#190. What is the source of variation information in FMS

#191. An altimeter reads 11000ft with subscale setting of 1013.25mb. QNH is 1023 OAT is +3?C. The pressure altitude of the a/c is

#192. What does FMS provide?

#193. How does FMS calculate ground speed?

#194. . If sink rate is excessive, the GPWS indication will be:

#195. What is the function of MCDU in FMS when carrying out pre-flight check?

#196. What is the latest time at which the INS/IRS may be selected to Nav. mode

#197. The TCAS gives avoidance Resolutions?

#198. Rate integrating gyro is used in which of the following?

#199. In an IRS accelerations are measured in relation to:

#200. Which of the following will give maximum range to the surface radio wave?

#201. The phenomena of coastal refraction which affects the accuracy of ADF bearing:

#202. In a turn at constant rate, turn indicator reading is

#203. What shall be apparent wander on DGI when flying on a Northerly track from 5S to 5N

#204. Both ball and the needle of the TSI are displaced to the right, A/c is

#205. The needle is displaced to the right and ball is displaced to the left in TSI, A/c is

#206. What would be immediate indications when left engine fails in climb?

#207. If ball and needle are displaced to the left in a turn, the ball can be centralized by

#208. A DGI is basically a:

#209. Inputs to FMS include

#210. What happens when FMC auto tunes DME & does not receive a satisfactory code

#211. The altimeter indicates true altitude:

#212. TAT is ……. than…… by an amount which is proportional to _

#213. SSR is a form of ..... radar with .... type emissions operating in the ..... band:

#214. Formula for TAT is

#215. TAT is

#216. A Rosemount probe employs an electrical heater to

#217. Arrow symbols on TCAS indicate

#218. What is principle of TCAS-II

#219. TCAS indicates relative height as

#220. Aircraft is tracking from NDB 'A' to NDB 'B' on a track of 050 (T). Aircraft HDG 060 (T) RBI indicates R.B. of NDB 'A' 180 and R.B. of 'B' as 330, aircraft is

#221. In order to Tune, Identify, Monitor non A1A NDB, the BFO should be 'ON' as follows

#222. DOC of NDB can't be guaranteed by night because of

#223. In ADF the night effect is most pronounced

#224. Aircraft HDG 189. Maximum Quadrantal errors will be experienced if the NDB bears

#225. Aircraft is homing to VOR. Aircraft is on radial 152. Pilot has set 329 on the OBS, CDI would indicate (assuming 5 dots VOR)

#226. Aircraft on ILS approach path is receiving stronger 150hz signals than 90hz signals. The correct action to capture LLZ and glide nath would be to fly ..

#227. The indications from basic RNAV are erratic the reason is likely to be

#228. Ground controller will ask the pilot to cancel mode 'C' if discrepancy in altitude is more than …..and altimeter subscale is _?

#229. The transmission freq. of DME is 63 Mhz removed from aircraft interrogatory freg. to prevent

#230. The position used by FMC is

#231. The most significant errors of GNSS is

#232. Initial range calculation at receiver is known as pseudo range because it is yet to corrected for

#233. When turning through 180' at constant attitude & bank angle a classic A/H indicates

#234. Aircraft magnetism is caused by hard iron:

#235. Which of the following statement is correct concerning TCAS-II?

#236. AWR is an example ..... of radar operating on freq of ..... in the ..... band

#237. You are using Doppler VOR, which statement is true?

#238. Aircraft 'A' is homing to NDB 'PL' on track 060M with 11 port drift. Aircraft 'B' is maintaining an outbound track of 320M with 13 S drift from the same NDB. What would be R.B. of aircraft A & B from NDB .PL'.

#239. Pilot hears a morse code as TST from NAV aid this means

#240. In GPS, the number of satellites needed to perform RAIM functions without isolating the faulty satellite is

#241. VOR which continues to transmit bearings but stops to transmit its identification

#242. . Examples of secondary radar are

#243. Deviation due to co-efficient A is mainly caused by

#244. WX radar returns are available in the following EFIS / EHSI modes:

#245. In Plan mode the plan route display

#246. An armed mode on an EFIS EADI display will appear as

#247. What does a Radio altimeter measure of an a/c in landing configuration?

#248. Warning flags of FD on ADI will indicate failure of

#249. The magnitude of error in position lines derived from ADF bearing that are affected. by coastal refraction may be reduced by

#250. With automatic FD system in VNAV and LNAVmode, engaging second AP will

#251. LVL CHG, V/S and VNAV mode are inhibited when:

#252. For auto landing to continue below_1500'AGLwhichofthe following conditit must be satisfied?

#253. When a/c climbs at constant rectified airspeed; the TASwill ...&the Machno,will ? CHICKEN TIKKA MASALA

#254. GPWS mode 3 is active between

#255. What type of sensor is normally used to measure inlet air temperature where the signal is to be employed for altitude compensation in a conventional (Non-FADEC) engine fuel system?

#256. A flight control unit in FMS

#257. In order to know which mode of auto throttle is engaged, crew will check

#258. In an a/c which requires Mach trim system it will apply inputs to horizontal stabilizer.

#259. What happens to the glide slope signal at 50' AGL in auto land?

#260. FMS is

#261. A TAT probe measures using the relationship?

#262. Control wheel steering (CWS) is engaged by

#263. An ADF is tuned to an NDB the needle is hunting the signal is fading growing louder alternatively the reason is

#264. If an alert message is generated by FMS:

#265. The frequency range of VOR receiver is

#266. Function of INS stable platform is to

#267. In remote indicating compass the annunciator light will come on when

#268. In FMS the phases of flight are

#269. In AWR conical beam is used for mapping for distance

#270. Preventive R.A in TCAS includes

#271. If an alert msg is generated by FMS

#272. A/C goes around after descending to R. altitude of 190' GPWS will provide alert w. A/C has lost about:

#273. You are approaching NDB on track 045, If you are drifted to the right

#274. According to Doc 8168, a pilot flying an NDB approach must achieve a tracking accuracy within ...... of the published approach track:

#275. An a/c is Homing on to an NDB maintaining a RB of 0', if the magnetic Hdg decreases, the a/c is experiencing

#276. GPWS is active between

#277. A RA determines ac height by

#278. Marker beacons use the following wave length

#279. A Close traffic advisory is displayed on the Tcas II by

#280. What is measured to establish a/c position in relation to the Localizer on ILS?

#281. . On the localizer modulations are 150Hz & 90Hz, which statement is correct?

#282. In GPWS BITE can be activated

#283. Descending through an isothermal layer at a constant TAS

#284. What is density altitude?

#285. From where does ADC obtain altitude data?

#286. Ac in level flight maintains M.N 072 later the ac descends maintaining same MN The TAS will be

#287. 2 aircraft are flying at different levels with same TAS. Which will have higher M.N?

#288. Can weather radar be operated on ground?

#289. The maximum drift error sensed by uncompensated DGI will be:

#290. If an ac flying at a constant height on a level surface meets a hot air mass ,the altimeter will,

#291. Some altimeter employ vibrator in order to

#292. What is indicated by lower and upper ends of the white arc on ASI?

#293. When climbing through an isothermal layer at a constant CAS

#294. Whom does the flux valve of a gyro magnetic compass transmit information to?

#295. In SSR, what code is used to indicate transponder altitude failure?

#296. What will happen to TAS when descending through an isothermal layer at a constant CAS?

#297. What inputs are fed to ADC?

#298. Servo altimeter are more accurate because

#299. What is the correct action to be taken when the static vent gets blocked of a VSI in a . unpressurized aircraft?

#300. What will be the effect on ASI if Pitot tube is blocked in an unpressurized aircraft?

Finish
RADIO AIDS AND INSTRUMENTS
Scroll to top