Question 61-1 : In the northern hemisphere during deceleration following a landing in a northerly direction a direct reading magnetic compass indicates ? [ Formation assignment ]

Question 61-2 : In the northern hemisphere during deceleration following a landing in a southerly direction a direct reading magnetic compass indicates ?

No apparent turn.

Accelerationdeceleration errors are false compass indications of a swing to the north or south during speed changes of the airplane this error is most pronounced when flying on a heading of east or west and decreases when flying closer to a north or south heading in a direct north or south heading this error does not occurin the northern hemisphere the compass swings towards the north during acceleration and towards the south during deceleration in the southern hemisphere this error occurs the other way round when the speed stabilises the error disappearslearn this for northern hemisphere ands a cceleration gives apparent turn to n orth d eceleration gives apparent turn to s outh

Question 61-3 : During deceleration following a landing in a westerly direction a magnetic compass made for the northern hemisphere indicates ?

An apparent turn to the south.

Accelerationdeceleration errors are false compass indications of a swing to the north or south during speed changes of the airplane this error is most pronounced when flying on a heading of east or west and decreases when flying closer to a north or south heading in a direct north or south heading this error does not occurin the northern hemisphere the compass swings towards the north during acceleration and towards the south during deceleration in the southern hemisphere this error occurs the other way round when the speed stabilises the error disappearslearn this for northern hemisphere ands a cceleration gives apparent turn to n orth d eceleration gives apparent turn to s outh

Question 61-4 : During deceleration following a landing in a westerly direction a magnetic compass made for the southern hemisphere indicates ?

An apparent turn to the north.

Accelerationdeceleration errors are false compass indications of a swing to the north or south during speed changes of the airplane this error is most pronounced when flying on a heading of east or west and decreases when flying closer to a north or south heading in a direct north or south heading this error does not occurin the northern hemisphere the compass swings towards the north during acceleration and towards the south during deceleration in the southern hemisphere this error occurs the other way round when the speed stabilises the error disappearslearn this for northern hemisphere ands a cceleration gives apparent turn to n orth d eceleration gives apparent turn to s outh

Question 61-5 : During deceleration following a landing in an easterly direction a magnetic compass made for the northern hemisphere indicates ?

An apparent turn to the south.

Accelerationdeceleration errors are false compass indications of a swing to the north or south during speed changes of the airplane this error is most pronounced when flying on a heading of east or west and decreases when flying closer to a north or south heading in a direct north or south heading this error does not occurin the northern hemisphere the compass swings towards the north during acceleration and towards the south during deceleration in the southern hemisphere this error occurs the other way round when the speed stabilises the error disappearslearn this for northern hemisphere ands a cceleration gives apparent turn to n orth d eceleration gives apparent turn to s outh

Question 61-6 : During deceleration following a landing in an easterly direction a magnetic compass made for the southern hemisphere indicates ?

Question 61-7 : About a magnetic compass ?

Turning error is due to the vertical component of the earth's magnetic field.

Question 61-8 : 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 ?

Question 61-9 : The turning errors of a direct reading magnetic compass are ?

Maximum at the magnetic poles.

At the magnetic equator the attraction of the compass needle towards the north and south poles is equal and the needle remains unbiased as the compass is moved either north or south of the magnetic equator the attraction to the nearest pole is increased thus the needle will be biased towards the nearest pole 1006this phenomenon is called magnetic dip and this compass error is amplified with the proximity to either pole

Question 61-10 : A flux valve detects the horizontal component of the earth's magnetic field 1 the flux valve is made of a pair of soft iron bars2 the information can be used by a flux gate compass or a directional gyro3 the flux gate valve casing is dependent on the aircraft three inertial axis4 the accuracy on ?

2 4.

The magnetic detector unit flux valve is fixed to the aircraft it feeds the error detector with information about the earth's magnetic field it is made of three soft iron bars this system is very accurate accuracy on the value of the magnetic field indication is less than 05°

Question 61-11 : The direct reading magnetic 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 ?

1.

Question 61-12 : In the northern hemisphere during a take off run in a westerly direction a direct reading magnetic compass indicates ?

An apparent turn to the north.

Accelerationdeceleration errors are false compass indications of a swing to the north or south during speed changes of the airplane this error is most pronounced when flying on a heading of east or west and decreases when flying closer to a north or south heading in a direct north or south heading this error does not occurin the northern hemisphere the compass swings towards the north during acceleration and towards the south during deceleration in the southern hemisphere this error occurs the other way round when the speed stabilises the error disappearslearn this for northern hemisphere ands a cceleration gives apparent turn to n orth d eceleration gives apparent turn to s outh

Question 61-13 : In the northern hemisphere during the take off run in an easterly direction a direct reading magnetic compass indicates ?

An apparent turn to the north.

Accelerationdeceleration errors are false compass indications of a swing to the north or south during speed changes of the airplane this error is most pronounced when flying on a heading of east or west and decreases when flying closer to a north or south heading in a direct north or south heading this error does not occurin the northern hemisphere the compass swings towards the north during acceleration and towards the south during deceleration in the southern hemisphere this error occurs the other way round when the speed stabilises the error disappearslearn this for northern hemisphere ands a cceleration gives apparent turn to n orth d eceleration gives apparent turn to s outh

Question 61-14 : Which of the following statements about hard and soft iron in relation to magnetism is correct ?

Hard iron magnetism is of a permanent nature and soft iron is of a non permanent nature.

Question 61-15 : The turning error of a direct reading magnetic compass ?

Increases when the magnetic latitude increases.

Question 61-16 : Direct reading magnetic compass errors are ?

Due to north change depending on the bank angle and magnetic heading.

Question 61-17 : The flux valve of a gyromagnetic compass 1 feeds the error detector2 feeds the direct indicating compass3 gives the earth's magnetic field directionthe combination regrouping all of the correct statements is ?

1 3.

The gyro magnetic compass is made up of a magnetic detector unit flux valve which electrically senses the direction of earth's magnetic field a gyroscope which points to a fixed point in space regardless of any manoeuvres the aircraft makes an error detector to sense any difference between the gyro and magnetic headings and apply corrections to the gyrothe magnetic detector unit flux valve feeds the error detector with information about the earth's magnetic field

Question 61-18 : A flux valve ?

Is usually located in the wing tip to avoid as much as possible magnetic disturbances of the airplane.

Question 61-19 : An electromagnet is a type of magnet in which ?

The magnetic field is produced by the flow of an electric current.

Revised ecqb03 july 2016

Question 61-20 : The inclination of the earth magnetic field at the magnetic equator is equal to ?

0°.

Revised ecqb03 july 2016at the magnetic equator the attraction of the compass needle towards the north and south poles is equal and the needle remains unbiased as the compass is moved either north or south of the magnetic equator the attraction to the nearest pole is increased thus the needle will be biased towards the nearest pole 1006this phenomenon is called magnetic dip and this compass error is amplified with the proximity to either pole

Question 61-21 : The earth's north magnetic pole ?

Question 61-22 : In the northern hemisphere during acceleration in a westerly heading a direct reading magnetic compass ?

Indicates an apparent turn to the north.

Feedback cqb15 may 2012accelerationdeceleration errors are false compass indications of a swing to the north or south during speed changes of the airplane this error is most pronounced when flying on a heading of east or west and decreases when flying closer to a north or south heading in a direct north or south heading this error does not occurin the northern hemisphere the compass swings towards the north during acceleration and towards the south during deceleration in the southern hemisphere this error occurs the other way round when the speed stabilises the error disappearslearn this for northern hemisphere ands a cceleration gives apparent turn to n orth d eceleration gives apparent turn to s outh

Question 61-23 : The principle of the compass swinging procedures is to ?

Question 61-24 : Which of these statements about fundamental laws of magnetism are correct or incorrect 1 like poles attract2 unlike poles repel each other ?

1 is incorrect 2 is incorrect.

Cqb15 august 2012 warning this question is in the database n°1059 with statements 1 and 2 inverted 1 unlike poles attract 2 like poles repel each other 1032like poles of magnets repel each other north pole and north pole south pole and south pole while different poles will attract each other north pole and south pole

Question 61-25 : The force of attraction or repulsion between two magnets ?

Varies inversely as the square of the distance between them.

Cqb15 august 2012the law of magnets states that like poles repel unlike poles attract if the poles are concentrated at points this force between two poles is proportional to the product of their strengths and varies inversely as the square of the distance between them

Question 61-26 : The magnetic poles are the two positions on the earth's surface where the lines of the magnetic field ?

Are entirely vertical.

1430the force acting on a compass needle is directly proportional to the horizontal component of the earth's field and inversely proportional to the vertical component of the earth'sat the magnetic poles the earth's magnetic field is perpendicular to the earth's surface magnetic dip is 90° at the magnetic poles a dip needle stands vertical

Question 61-27 : The purpose of a magnetic compass compensation is to correct for ?

Deviations.

The compass swinging procedures is the determination of the deviations due to aircraft's magnetic field compass swinging determination of initial deviations compass compensation correction of deviations found compass calibration determination of residual deviations

Question 61-28 : The purpose of a magnetic compass calibration is to ?

Determine the residual deviations.

Ecqb03 july 2016the compass swinging procedures is the determination of the deviations due to aircraft's magnetic field compass swinging determination of initial deviations compass compensation correction of deviations found compass calibration determination of residual deviations

Question 61-29 : The location of the earth's magnetic poles ?

Periodically wanders as much as 15 km every year .

Ecqb03 july 2016

Question 61-30 : Which of these statements about fundamental laws of magnetism are correct or incorrect 1 unlike poles attract2 like poles repel each other ?

1 is correct 2 is correct.

Ecqb03 july 2016 warning this question is in the database n°1025 with statements 1 and 2 inverted 1 like poles attract 2 unlike poles repel each other 1032like poles of magnets repel each other north pole and north pole south pole and south pole while different poles will attract each other north pole and south pole

Question 61-31 : Which of these statements about the properties of a simple bar magnet are correct or incorrect 1 north or south poles cannot exist separately2 magnetism is concentrated at the extremities of the bar ?

1 is correct 2 is correct.

Ecqb03 july 2016 warning this question also exists at the exam with the first statement written like this north or south poles can exist separately which in this is case is incorrect

Question 61-32 : The magnetic variation at any point on the earth's surface is the angle ?

Between the horizontal component of the magnetic field and true north direction.

The minimum magnetic variation declination is 0°the maximum magnetic variation declination is 180°and this will be along a line between the magnetic north pole and the geographic north pole 1417black arrow the true north directionred arrow the horizontal component of the magnetic north

Question 61-33 : The magnetic variation ?

Is caused by the different locations of the geographic north pole and the magnetic north pole.

The minimum magnetic variation declination is 0°the maximum magnetic variation declination is 180°and this will be along a line between the magnetic north pole and the geographic north pole 1417black arrow the true north directionred arrow the horizontal component of the magnetic north

Question 61-34 : The inclination of the earth's magnetic field at the north magnetic pole is equal to ?

90°.

1430the force acting on a compass needle is directly proportional to the horizontal component of the earth's field and inversely proportional to the vertical component of the earth'sat the magnetic poles the earth's magnetic field is perpendicular to the earth's surface magnetic dip is 90° at the magnetic poles a dip needle stands vertical

Question 61-35 : Because of the earth's magnetic field a compass placed anywhere on earth will turn so that the north pole of the magnet inside the compass points towards the ?

North magnetic pole.

Revised ecqb04 october 2017

Question 61-36 : Which of the following is an occasion for carrying out a compass swing on a direct reading compass ?

After an aircraft has passed through a severe electrical storm or has been struck by lightning.

Question 61-37 : The directive force of the earth's magnetic field ?

Is greatest at the magnetic equator.

At the magnetic equator the attraction of the compass needle towards the north and south poles is equal and the needle remains unbiased as the compass is moved either north or south of the magnetic equator the attraction to the nearest pole is increased thus the needle will be biased towards the nearest pole 1006this phenomenon is called magnetic dip and this compass error is amplified with the proximity to either poledirective force = horizontal component of the earth's magnetic field

Question 61-38 : The compass heading can be derived from the magnetic heading by reference to a ?

Compass swinging curve.

The magnetic heading can be derived from the true heading by means of a map showing the isogonal linesthe compass heading can be derived from the magnetic heading by reference to a compass swinging curvefor information compass swinging determination of initial deviations compass compensation correction of deviations found compass calibration determination of residual deviations

Question 61-39 : The indications on a directional gyroscope are subject to errors the most significant are 1 apparent wander due to earth rotation2 apparent wander due to change of aircraft position3 gimballing errors4 north change5 mechanical defects the combination regrouping the correct statement is ?

1 2 3 5.

Question 61-40 : Graphic at reference shows three gyro assemblies a b and camong these gyros one is a roll gyro noted 1 one is a pitch gyro noted 2 one is a yaw gyro noted 3 the correct matching of gyros and assemblies is 1041 ?

1b 2c 3a.