Question 62-1 : When an aircraft has turned 360 degrees with a constant attitude and bank the pilot observes the following on a classic artificial horizon ? [ Theoretical lift off ]

Question 62-2 : When an aircraft has turned 90 degrees with a constant attitude and bank the pilot observes the following on a classic artificial horizon ?

Too much nose up and bank too low.

For a classic artificial horizon air driven artificial horizon not for an electric artificial horizon since the pendulous vanes are affected by a horizontal acceleration as well as acceleration due to gravity errors in pitch and roll indications will occur during the turns the centrifugal force will act on the fore and aft pendulous vanes erection error and weighted base of the rotor housing pendulosity error the errors are complex and change as the turn progresses cancelling out after a 360° turn the magnitude of the errors varies with speed rate of turn and type of horizonthe following errors will occur after 90° of turn too much nose up and bank too lowafter 180° of turn too much nose up and bank correctafter 270° of turn too much nose up and too much bankafter 360° of turn attitude and bank correct

Question 62-3 : The gyroscope of a turn indicator has nb the degree s of freedom of a gyro does not take into account its rotor spin axis ?

1 degree of freedom.

Question 62-4 : The indication of the directional gyro is valid only for a limited period of time the causes of this inaccuracy are 1 rotation of the earth 2 longitudinal accelerations 3 aircraft's moving over the surface of the earth 4 vertical components of the earth's magnetic fieldthe combination ?

1 3.

A directional gyro consists of a 2 degrees of freedom horizontal axis gyroit must be aligned and corrected by the pilot due to rotation of the earth apparent drift due to the earth's rotation is 15 x sin latitude in degrees per hourthe latitude in this case is the latitude of the actual position of the aircraftfor latitude change flight north or south take the mean aircraft latitude for the period involvedaircraft's moving over the surface of the earth transport wander as the gyro is moved from one point on the earth to another the gyro maintains its orientation in spacehowever the direction of true north changesfurther you travel in an eastwest sense the greater the changetransport wander is the apparent loss of alignment caused by east west travel and its value is simply the convergency between two pointstransport wander in degrees = change of longitude x sin mean latitudetransport wander in an easterly direction will have a different sign from transport wander in a westerly direction

Question 62-5 : An airborne instrument equipped with a gyro with 2 degrees of freedom and a horizontal spin axis is nb the degree s of freedom of a gyro does not take into account its rotor spin axis ?

A directional gyro.

A gyro with 2 degrees of freedom and a horizontal spin axis is a directional gyroa gyro with 1 degree of freedom and a horizontal spin axis is a turn indicator

Question 62-6 : An airborne instrument equipped with a gyro with 1 degree of freedom and a horizontal spin axis is a nb the degree s of freedom of a gyro does not take into account its rotor spin axis ?

Question 62-7 : In a turn at a constant angle of bank the turn indicator reading is ?

Inversely proportional to the aircraft true airspeed.

In a turn at a constant angle of bank a decrease in aircraft true airspeed involves an increase in rate of turnrate of turn and tas are inversely proportionalexample rate of turn 3°sec rate one turn tas 100 ktbank angle 15°if now speed becomes 80 kt the turn indicator which previously show a rate one turn is now showing more than a rate one turn

Question 62-8 : At a low bank angle the measurement of rate of turn actually consists in measuring the ?

Question 62-9 : The rate of turn is the ?

Change of heading rate of the aircraft.

The rate of turn is the number of degrees your heading changes in a period of time usually one second or one minutea standard rate turn typically spoken of in terms of instrument flight is performed at 180 degrees of heading change in a one minute period this gives a complete 360° turn in two minutes

Question 62-10 : On the ground during a right turn the turn indicator indicates ?

Needle to the right ball to left.

Question 62-11 : On the ground during a left turn the turn indicator indicates ?

Needle to the left ball to the right.

Question 62-12 : When in flight the needle and ball of a needle and ball indicator are on the left the aircraft is ?

Turning left with too much bank.

Question 62-13 : When in flight the needle and ball of a needle and ball indicator are on the right the aircraft is ?

Turning right with too much bank.

Question 62-14 : When in flight the needle of a needle and ball indicator is on the right and the ball on the left the aircraft is ?

Turning right with not enough bank.

Question 62-15 : When in flight the needle of a needle and ball indicator is on the left and the ball on the right the aircraft is ?

Turning left with not enough bank.

Question 62-16 : A stand by horizon or emergency attitude indicator ?

Contains its own separate gyro.

Question 62-17 : In the building principle of a gyroscope the best efficiency is obtained through the concentration of the mass ?

On the periphery and with a high rotational speed.

Question 62-18 : The diagram representing a left turn with insufficient rudder is 1045 ?

4.

Fgabrys i'm pretty sure that the correct answer is n°3 the diagram n°4 represents a left turn with too much rudder in a slipping turn the ball will be displaced in the direction of turn in the opposite direction for a skidding turn 995you now have two solutions push on the left rudder pedal or decrease the bank angle

Question 62-19 : The maximum directional gyro error due to the earth rotation is ?

15°hour.

Apparent drift due to the earth's rotation is 15° x sin latitude in degrees per hourthe latitude in this case is the latitude of the actual position of the aircraftfor latitude change flight north or south take the mean aircraft latitude for the period involved

Question 62-20 : Heading information given by a gyro platform is given by a gyro at ?

2 degrees of freedom in the horizontal axis.

A directional gyro consists of a 2 degrees of freedom horizontal axis gyro it must be aligned and corrected by the pilot drift due to the earth's rotation and transport wander

Question 62-21 : Among the systematic errors of the 'directional gyro' the error due to the earth rotation make the north reference turn in the horizontal planeat a mean latitude of 45°n this reference turns by ?

Question 62-22 : A turn indicator is an instrument which indicates rate of turn rate of turn depends upon 1 bank angle 2 aeroplane speed 3 aeroplane weight the combination regrouping the correct statements is ?

1 and 2.

Question 62-23 : The diagram which shows a 40° left bank and 15° nose down attitude is number 1046 ?

1.

Img996your aircraft is seen from behind

Question 62-24 : The heading read on the dial of a directional gyro is subject to errors one of which is due to the movement of the aircraft this error ?

Is dependent on the ground speed of the aircraft its true track and the latitude of the flight.

Buhoraptor and if it is on the equator the error depends upon the position of the aircraft on earth the drift error = 0 at the equator but this is not what the question states the question states that the apparent drift error depends on the ground speed the true track and the latitude even if it is on the equator and if the resulting error is zero

Question 62-25 : A gravity erector system is used to correct the errors on ?

An artificial horizon.

Question 62-26 : During a deceleration phase at constant attitude the control system of an air driven artificial horizon results in the horizon bar indicating a ?

Nose down attitude.

Errors in the artificial horizon suction acceleration errors linear acceleration these errors are also known as 'takeoff' errors as they are most noticeable during takeoff two elements cause the errors the pendulous unit the vaneserror from the pendulous unit the pendulous unit makes the rotor bottom heavyas the aircraft accelerates a force from inertia of the unit is felt at the bottom and the unit tendsto lag behind it tends to swing the bottom of the gyro towards the pilotair driven rotors spin anti clockwise when viewed from above so this inertial force will precessthrough 90° in an anti clockwise direction lifting up the right hand side of the outer gimbalthe skyplate attached to the outer gimbal rotates in an anti clockwise direction lifting up the righthand side of the outer gimbal the skyplate attached to the outer gimbal rotates anti clockwiseand the bank indicates a false right bankerror from exhaust vanes during acceleration the vanes on the right and left sides are thrown rearwardthe result is that the right hand port is more than half open and the left side port is more thanhalf closed this upsets the balanced exhaust of air more air being discharged from the rightside than from the left side the reaction occurs on the left side and precesses through 90° andlifts up the inner gimbal from the point nearest the pilot to indicate a false climbthus with the gyro running anti clockwise a slight indication of right bank and climb are obtainedduring an acceleration

Question 62-27 : In a directional gyro gimballing errors are due to ?

A banked attitude.

The term gimballing error is used to describe the errors which occur when the gyro has reached its physical limit in pitch or rollany gimballing errors are due to banked attitudes and will disappear after the turn is complete

Question 62-28 : Parallax error is ?

A reading error.

1002the ball is centered parallax error is due to a reading under an oblique angle

Question 62-29 : The apparent wander of a directional gyro is 15°h ?

At the north pole.

15°h at poles and 0° at the equator

Question 62-30 : The artificial horizon uses a gyroscope with note the degree s of freedom of a gyro does not take into account its rotor spin axis ?

Two degrees of freedom and its rotor spin axis is continuously maintained to local vertical by an automatic erecting system.

Question 62-31 : The inertia of a gyroscope is greater when its rotation speed is ?

Higher and the mass of the spinning wheel is located further from the axis of rotation.

Question 62-32 : The rate of turn indicator uses a gyroscope 1 the spinning wheel axis of which is parallel to the yawing axis2 the spinning wheel axis of which is parallel to the pitch axis3 the spinning wheel axis of which is parallel to the roll axis4 with one degree of freedom5 with two degrees of ?

2 4.

The spin axis of the turn indicator gyro is aligned along the pitch axis lateral axis 1003 2389the number of independent ways by which a dynamical system can move without violating any constraint imposed on it is called degree of freedom the gyro in the turn and slip indicator rotates in the vertical plane one degree of freedom only corresponding to the airplane's longitudinal axis a single gimbal limits the planes in which the gyro can tilt and a spring tries to return it to center

Question 62-33 : The latitude at which the apparent wander of a directional gyro is equal to 0 is ?

The equator.

15°h at poles and 0° at the equator

Question 62-34 : The gyroscope used in an attitude indicator has a spin axis which is ?

Vertical.

Question 62-35 : For an aircraft flying a true track of 360° between the 5°s and 5°n parallels the precession error of the directional gyro due to apparent drift is equal to ?

Approximately 0°hour.

Question 62-36 : A rate gyro is used in a 1 directional gyro indicator2 turn co ordinator3 artificial horizonthe combination regrouping all the correct statements is ?

2.

An instrument which measures the rate of rotation of an object about an axis a spinning gyroscope precesses or tilts when it is rotated in a plane at right angles to its own spin axis the amount the gyroscope tilts is proportional to the rate at which it is rotated about an axis at right angles to both its spin axis and the axis of its precession the axis about which it tilts rate gyros are used in turn and slip indicators and turn coordinators 1003the spin axis of the turn indicator gyro is aligned along the pitch axis lateral axis of the aircraft

Question 62-37 : A directional gyro consists of a nb the degree s of freedom of a gyro does not take into account its rotor spin axis ?

2 degrees of freedom horizontal axis gyro.

Question 62-38 : The spin axis of the turn indicator gyro is aligned along the ?

Lateral axis of the aircraft.

The spin axis of the turn indicator gyro is aligned along the pitch axis lateral axis 1003 2389

Question 62-39 : The properties of a gyroscope are 1 rigidity in space 2 rigidity on earth 3 precession 4 schuler oscillations the combination regrouping all the correct statements is ?

1 3.

Question 62-40 : The rate of turn given by the rate of turn indicator is valid ?

For the airspeed range defined during the calibration of the instrument.