022 Magnetic Compasses IR(H) Past Paper PDF

Student Practice Worksheet 022 Magnetic Compasses IR(H) Total Questions: 54 1 A factor giving an error on a direct indicating compass would be: a. parallax due to oscillations of the compass rose....

Student Practice Worksheet 022 Magnetic Compasses IR(H) Total Questions: 54 1 A factor giving an error on a direct indicating compass would be: a. parallax due to oscillations of the compass rose. b. turning through east/west headings. c. acceleration on east/west headings. d. crosswinds- particularly on east/west headings. 2 A pilot wishes to turn left on to a southerly heading with 20° bank at a latitude of 20° North. Using a direct reading compass, in order to achieve this he must stop the turn on an approximate heading of: a. 190° b. 170° c. 160° d. 200° 3 A pilot wishes to turn right on to a southerly heading with 20° bank at a latitude of 20° North. Using a direct reading compass, in order to achieve this he must stop the turn on an approximate heading of: a. 170° b. 180° c. 150° d. 200° 4 A pilot wishes to turn right through 90° on to North at rate 2 at latitude of 40 North using a direct reading compass. In order to achieve this the turn should be stopped on an indicated heading of approximately: a. 010° b. 330° c. 360° d. 030° 4/1/2021 022 Instruments IR(H) Page: 1 of 14 022 Magnetic Compasses IR(H) Continued... 5 A remote indicating compass has usually less deviation error than a panel mounted compass because: a. the indication system consists of toroidal-wound coils forming a Magnesyn system with little interference. b. it receives a higher flux-density from the earth's magnetic field. c. it is carrying a well damped floating magnet. d. it is normally mounted in a part of the airplane where magnetic interference is minimal. 6 About a magnetic compass: a. acceleration errors are due to crosswind and gusts. b. errors of parallax are due to the oscillation of the compass rose. c. acceleration errors are due to Schuler oscillations. d. turning error is due to the angle of dip. 7 About a magnetic compass: a. errors of parallax are due to the oscillation of the compass rose b. acceleration errors are due to Schüler oscillations c. turning error is due to the vertical component of the earth's magnetic field. d. acceleration errors are due to the angle of dip. 8 An aircraft is fitted with a direct reading magnetic compass. Upon landing in a northerly direction the compass will indicate: a. a turn towards West. b. a turn towards East. c. no change. d. an oscillation to its North alignment. 4/1/2021 022 Instruments IR(H) Page: 2 of 14 022 Magnetic Compasses IR(H) Continued... 9 An aircraft lands on a southerly direction in the northern hemisphere. The compass indication will: a. increase. b. not change. c. oscillate about 180°. d. decrease. 10 An aircraft takes-off on a runway with an alignment of 045°, the compass is made for the northern hemisphere. During rolling take-off, the compass indicates: a. a value above 045° in the southern hemisphere. b. a value below 045°. c. 045°. d. a value above 045° in the northern hemisphere. 11 An aircraft takes-off on a runway with an alignment of 045°; the compass is made for the northern hemisphere. During take-off roll, the compass indicates: a. a value above 045° in the northern hemisphere. b. a value below 045°. c. a value above 045° in the southern hemisphere. d. 045°. 12 Concerning magnetic compasses, deviation is: a. The angular difference between magnetic North and true North. b. Compass North. c. The angular difference between magnetic North and compass North. d. A card in the cockpit showing compass heading errors. 4/1/2021 022 Instruments IR(H) Page: 3 of 14 022 Magnetic Compasses IR(H) Continued... 13 Concerning the direct reading magnetic compass, the turning error: a. does not depend on the magnetic latitude. b. increases when the magnetic latitude increases. c. decreases when the magnetic latitude increases. d. decreases when the magnetic longitude increases. 14 Concerning the direct reading magnetic compass, the turning error: a. does not depend on the magnetic latitude. b. decreases with the magnetic latitude. c. increases with the magnetic latitude. d. decreases with the magnetic longitude. 15 During deceleration following a landing in a northerly direction, a magnetic compass made for the southern hemisphere indicates: a. no apparent turn. b. an apparent turn to the West. c. an apparent turn to the East. d. a heading fluctuating about 360°. 16 During deceleration following a landing in a southerly direction, a magnetic compass made for the northern hemisphere indicates: a. no apparent turn. b. an apparent turn to the East. c. an apparent turn to the West. d. a heading fluctuating about 180°. 4/1/2021 022 Instruments IR(H) Page: 4 of 14 022 Magnetic Compasses IR(H) Continued... 17 During deceleration following a landing in a westerly direction, a magnetic compass made for the northern hemisphere indicates: a. no apparent turn only on northern latitudes. b. an apparent turn to the south. c. an apparent turn to the north. d. no apparent turn. 18 During deceleration following a landing in a westerly direction, a magnetic compass made for the southern hemisphere indicates: a. an apparent turn to the south. b. an apparent turn to the north. c. no apparent turn only on southern latitudes. d. no apparent turn. 19 During deceleration following a landing in an easterly direction, a magnetic compass made for the northern hemisphere indicates: a. no apparent turn only on northern latitudes. b. an apparent turn to the south. c. no apparent turn. d. an apparent turn to the north. 20 During deceleration following a landing in an easterly direction, a magnetic compass made for the southern hemisphere indicates: a. an apparent turn to the north. b. no apparent turn. c. no apparent turn only on southern latitudes. d. an apparent turn to the south. 4/1/2021 022 Instruments IR(H) Page: 5 of 14 022 Magnetic Compasses IR(H) Continued... 21 For a position in the southern hemisphere, the effect of acceleration errors are greatest on headings: a. 135°(C) and 315°(C). b. 090°(C) and 270°(C). c. 180°(C) and 360°(C). d. 045°(C) and 225°(C). 22 Heading information from the gyromagnetic compass flux gate is transmitted to the: a. amplifier. b. heading indicator. c. error detector. d. erecting system. 23 If an aircraft, fitted with a Direct Reading Magnetic Compass (DRMC), takes off on a westerly heading, in the northern hemisphere, the DRMC will indicate: a. a turn to the north. b. a turn to south. c. no turn. d. oscillates about west. 24 In a standby compass the magnet system is immersed in a transparent liquid. The purpose of this liquid is to: a. increase sensitivity, reduce liquid swirl. b. increase sensitivity, increase aperiodicity. c. increase sensitivity, decrease aperiodicity. d. increase sensitivity at high latitudes, lubricate bearings. 4/1/2021 022 Instruments IR(H) Page: 6 of 14 022 Magnetic Compasses IR(H) Continued... 25 In a steep turn, the northerly turning error on a magnetic compass on the northern hemisphere is: a. equal to 180° on a 090° heading in a right turn. b. none on a 270° heading in a left turn. c. equal to 180° on a 270° heading in a right turn. d. none on a 090° heading in a right turn. 26 In the Northern Hemisphere, a magnetic compass will normally indicate a turn towards North if: a. a left turn is entered from a west heading. b. a right turn is entered from an east heading. c. an aircraft is accelerated while on an east or west heading. d. an aircraft is decelerated while on an east or west heading. 27 In the Northern hemisphere, during deceleration following a landing in a Westerly direction, the magnetic compass will indicate: a. an apparent turn to the North. b. an apparent turn to the South. c. a heading fluctuating about 270° d. no apparent turn. 28 In the northern hemisphere, during deceleration following a landing in an Easterly direction, the magnetic compass will indicate: a. an apparent turn to the South. b. a heading fluctuating about 090° c. a constant heading. d. an apparent turn to the North. 4/1/2021 022 Instruments IR(H) Page: 7 of 14 022 Magnetic Compasses IR(H) Continued... 29 In the Southern hemisphere, during deceleration following a landing in a Westerly direction, the magnetic compass will indicate: a. a heading fluctuating about 270°. b. no apparent turn. c. an apparent turn to the South. d. an apparent turn to the North. 30 In the Southern hemisphere, during deceleration following a landing in an Easterly direction, the magnetic compass will indicate: a. an apparent turn to the South. b. an apparent turn to the North. c. no apparent turn. d. a heading fluctuating about 090° 31 In the vicinity of the Magnetic North Pole the magnetic compass is useless because: a. the magnetic pole is moving. b. the magnetic field is too strong. c. the horizontal component of the magnetic field is too weak. d. the variation is too large. 32 Magnetic compass swinging is carried out to reduce as much as possible: a. deviation. b. regulation. c. variation. d. acceleration. 4/1/2021 022 Instruments IR(H) Page: 8 of 14 022 Magnetic Compasses IR(H) Continued... 33 The center of gravity of the compass rose of a magnetic compass lies below the pivot point in order to reduce: a. the influence of the magnetic inclination. b. the influence of the magnetic variation. c. the deviation. d. acceleration errors. 34 The compass heading can be derived from the magnetic heading by reference to a: a. map showing the isogonic lines b. compass deviation card c. magnetic variation correction card d. map showing the isoclinic lines 35 The detector unit of a remote indicating compass is normally: a. fixed in the azimuth. b. free in the vertical. c. free in the horizontal plane. d. fixed in the vertical plane only. 36 The direct indicating compass is no more reliable when approaching: 1 - the magnetic poles. 2 - the magnetic equator with a east or west heading. 3 - the magnetic equator with a north or south heading. The combination that regroups all of the correct statements is: a. 1 b. 1, 2, 3. c. 1, 2. d. 1, 3. 4/1/2021 022 Instruments IR(H) Page: 9 of 14 022 Magnetic Compasses IR(H) Continued... 37 The directive force of the earth's magnetic field: a. increases as magnetic latitude increases. b. varies with the heading of the aircraft. c. is greatest at the magnetic equator. d. increases as the magnetic variation increases. 38 The fields affecting a magnetic compass originate from: 1. magnetic masses 2. ferrous metal masses 3. non ferrous metal masses 4. electrical currents The combination that regroups all of the correct statements is: a. 1, 2, 4 b. 1, 2, 3 c. 1, 3, 4 d. 1, 2, 3, 4 39 The flux valve in a Remote Indicating Magnetic Compass: a. is made of hard-iron magnetic steel. b. is fed with DC current. c. is supplied with AC current. d. has its own self exciter unit. 40 The magnetic heading can be derived from the compass heading by reference to a: a. map showing the magnetic variation lines. b. magnetic variation correction card. c. compass deviation card. d. map showing the isogonic lines. 4/1/2021 022 Instruments IR(H) Page: 10 of 14 022 Magnetic Compasses IR(H) Continued... 41 The magnetic heading can be derived from the true heading by means of a: a. compass swinging curve. b. deviation correction curve. c. map showing the isoclinic lines. d. map showing the isogonal lines. 42 The main requirements of a direct reading magnetic compass are that it should be: a. aperiodic, horizontal, sensitive. b. easily read, floating in a transparent liquid, quick to react to change in aircraft heading. c. positioned directly in front of the pilot, easily corrected for magnetic deviation, aperiodic. d. horizontal, sensitive, periodic. 43 The purpose of a compass swing is to attempt to coincide the indications of: a. compass north and the lubber line. b. compass north and magnetic north. c. true north and magnetic north. d. compass north and true north. 44 The purpose of compass swinging is to determine the deviation of a magnetic compass: a. on a given heading. b. at a given latitude. c. on any heading. d. at any latitude. 4/1/2021 022 Instruments IR(H) Page: 11 of 14 022 Magnetic Compasses IR(H) Continued... 45 The purpose of the flux-valve is: a. to measure the strength of the earth's magnetic field. b. to align the spokes with the earth's magnetic field in order to get maximum voltage from the pick-up coils. c. to provide flux for the automatic slaving system. d. to sense the direction of the earth's magnetic field relative to the airplane. 46 The turning errors of a direct reading magnetic compass are: a. maximum at the magnetic equator. b. minimum at a latitude of 45°. c. maximum at the magnetic poles. d. minimum at the magnetic poles. 47 To improve the horizontality of a compass, the magnet assembly is suspended from a point: a. on the centre line of the magnet. b. varying with magnetic latitude. c. above the centre of gravity. d. below the centre of gravity. 48 True heading can be converted into magnetic heading using: a. a map with isoclinal lines. b. a deviation curve. c. a map with isogonal lines. d. a deviation card. 4/1/2021 022 Instruments IR(H) Page: 12 of 14 022 Magnetic Compasses IR(H) Continued... 49 Variation is defined as the angle between: a. CN and the longitudinal axis of the aircraft. b. TN and MN. c. MN and CN. d. TN and CN. 50 When accelerating on a westerly heading in the Northern Hemisphere the needle of the DIC will: a. Turn clockwise giving an apparent turn towards north b. Turn clockwise giving an apparent turn towards south c. Turn anti-clockwise giving an apparent turn towards south d. Turn anti-clockwise giving an apparent turn towards north 51 When accelerating on an easterly heading in the northern Hemisphere, the magnet system of a direct reading magnetic compass will: a. Turn anti-clockwise, indicating an apparent turn towards north b. Turn clockwise, indicating an apparent turn towards south c. Turn anti-clockwise, indicating an apparent turn towards south d. Turn clockwise, indicating an apparent turn towards north 52 When carrying out a turn at the magnetic equator there will be: a. no turning error. b. no turning error when turning through east or west only. c. a tendency to underread turns due to liquid swirl. d. a tendency to underread turns through south and overread turns through north. 4/1/2021 022 Instruments IR(H) Page: 13 of 14 022 Magnetic Compasses IR(H) Continued... 53 Which of the following will effect a direct reading compass? 1. ferrous metals 2. non-ferrous metals 3. electrical equipment a. 1 only. b. 1 and 2. c. all 3. d. 1 and 3. 54 While flying, a red flag labelled 'HDG' appears in the indicator (HSI) of a Slaved Gyro Compass System. This indicates that: a. None of the answers are correct b. The flux valve has detected an error between the actual aircraft heading and the pre- selected heading c. The autopilot has detected an error between the actual aircraft heading and the pre- selected heading d. The flux valve is not supplying reliable information to the compass system 4/1/2021 022 Instruments IR(H) Page: 14 of 14