Lernkartei 022 Fragen T2 (Seite 1 von 2)

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Erstellt / Aktualisiert	29.05.2025 / 13.06.2025
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A space gyro can also be referred to as:

A Rate gyro

A Free gyro

A Tied gyro

An Earth gyro

The altimeter usually has a bimetallic temperature compensation. Why does a temperature error still remain? Because the bimetallic compensator...

does not compensate for outside air temperature effect on the pressure/altitude relation

only senses the outside air temperature, not the cockpit temperature

does not vary with the static pressure and the required compensation does

does not have sufficient capacity

What is an operational difference between the turn coordinator and the turn and slip indicator?

The turn coordinator is always electric; the turn and slip indicator is always vacuum-driven

The turn coordinator indicates bank angle only; the turn and slip indicator indicates rate of turn and co-ordination

The turn coordinator is sensitive to roll rate and turn rate and will therefore indicate when the turn is initiated

The turn coordinator indicates angle of bank; the turn-and-slip indicator indicates turn rate in co-ordinated flight

Which of the following cause Real Wander?

The rotation of the Earth

Mass imbalance and bearing friction

Apparent precession due to the Coriolis effect

Movement of the aeroplane over the Earth

Among the flight control instruments, the artificial horizon plays an essential part. It uses a gyroscope with...

One degree of freedom, whose horizontal axis is maintained in a horizontal plane by an automatic erecting system

Two degrees of freedom, whose horizontal axis corresponding to a reference direction is maintained in a horizontal plane by an automatic erecting system

Two degrees of freedom, whose axis is oriented and continuously maintained to local vertical by an automatic erecting system

One degree of freedom, whose vertical axis oriented in the direction of the real vertical to the location is maintained in this direction by an automatic erecting system

Among the flight control instruments, the artificial horizon plays an essential part. It uses a gyroscope with...

One degree of freedom, whose horizontal axis is maintained in a horizontal plane by an automatic erecting system

Two degrees of freedom, whose horizontal axis corresponding to a reference direction is maintained in a horizontal plane by an automatic erecting system

Two degrees of freedom, whose axis is oriented and continuously maintained to local vertical by an automatic erecting system

One degree of freedom, whose vertical axis oriented in the direction of the real vertical to the location is maintained in this direction by an automatic erecting system

When turning onto a northerly heading the rose of a magnetic compass tends to undershoot; when turning onto a southerly heading it tends to overshoot. Which statements are correct?1) The compass indications are less reliable in the northern hemisphere than in the southern hemisphere.2) These compass oscillations following a lateral gust are not identical if the aircraft is heading north or south.3) This behaviour is due to the mechanical construction of the compass.4) This behaviour is a symptom of a badly swung compass.

1, 2, 4

2, 3, 4

1, 3

2, 3

In the artificial horizon the horizon symbol is rotated slightly clockwise and slightly down. If no error, this is an indication of...

small right bank angle and nose down attitude

right climbing turn

small left bank angle and nose up attitude

right descending turn

A horizontal referenced gyro which has two degrees of freedom plus the spin axis, is for examination purposes described as a:

earth gyro

gyroscope

tied gyro

rate gyro

A conventional balance (slip) indicator is incorporated in...

Neither the ADI nor the HSI

The Horizontal Situation Indicator (HSI)

Both the ADI and the HSI

The Attitude Director Indicator (ADI)

The principle of operation of the rate of turn indicator is based on...

precession

rigidity

rigidity and precession

centrifugal force

Which of the following is correct when describing a Turn Co-ordinator?

It indicates the angle of bank and turn rate

It is suitable for a stand-by artificial horizon

It displays turn and pitch for rate one turn only

It responds to rolling for a bank angle as well as turn

Electrical artificial horizons correct for topple in pitch by:

pitch gravity switches and pitch torquers mounted around the longitudinal axis

pitch pick-offs and pitch torquers mounted on the lateral axis

pitch gravity switches and pitch torquers mounted around the lateral axis

A pendulous mass

A pneumatically driven directional gyro as applied in aircraft is:1) a gyroscope free around two axis2) a gyroscope free around one axis3) capable of North seeking4) incapable of North seekingThe combination which regroups all of the correct statements is:

2, 3

1, 3

1, 4

2, 4

Which part is the essential difference between a servo altimeter and a normal pressure altimeter?

The indicator

The linkage from pressure sensor to indicator

The pressure sensor

The subscale mechanism

The gimbal error of the directional gyro (DG) is due to the effect of...

too slow precession on the horizontal gimbal ring

an apparent weight and an apparent vertical

the aeroplane's track over the earth

a bank or pitch attitude of the aeroplane

You are in-flight to a destination with no alternate aerodrome. En-route, in case of inflight replanning, which time frame is required for the weather forecast to be above applicable minimum?

1 hour before to 1 hour after the ETA

3 hours before to 3 hours after the ETA

at the ETA

2 hours before to 2 hours after the ETA

The term ELT stands for:

Expected Localizer Transfer

Equivalent Latitude Time

Emergency Locator Transmitter

Electronic Location Terminator

In addition to the bellows (differential bellows), the second sensor used in the MAP indicator is:

A differential capsule

A Bourdon tube

A bellows sensor

An aneroid capsule

A gyro contained in a single gimbal, with freedom of movement in only one plane in addition to the spin axis is called a:

earth gyro

tied gyro

rate gyro

gyroscope

The measurement of static air temperature (SAT) by direct means is not possible on some fast aeroplane because:

The boundary layer around the aircraft gets very turbulent

Most temperature sensors have a low recovery factor

Of the effects of adiabatic compression and friction

The airflow causes too much cooling of the sensing probe

How is the error called which is affected by a variation in airflow caused by a change in speed, configuration or angle of attack?

Hysteresis error

Instrument error

Position or static source error

Compressibility error

The vertical speed indicator (VSI) gives:

Immediate trend information and immediate climb or descent information

Immediate trend information and stable climb or descent information after 4 to 12 seconds (depending on type)

No trend information but stable climb or descent information after 4 to 12 seconds (depending on type)

Immediate stable climb or descent information, but unreliable trend information

The limits of the white scale of an airspeed indicator are:

V_SO for the lower limit and V_LE for the upper limit

V_S1 for the lower limit and V_LE for the upper limit

V_S1 for the lower limit and V_FE for the upper limit

V_SO for the lower limit and V_FE for the upper limit

Calibrated airspeed is: IAS plus...

...the pressure error only

...density error correction

...compressibility correction

...instrument error correction

An air data computer (ADC): 1) Supplies the ground speed and the drift angle. 2) Determines the total temperature and the true altitude. 3) Receives the static pressure and the total pressure. 4) Determines and provides TAS. 5) Determines the Mach number and (SAT) static air temperature. The combination that regroups all of the correct statements is:

3, 4, 5

1, 2

2, 5

2, 3, 5

Magnetic compass swinging is carried out to reduce as much as possible:

Variation

Deviation

Regulation

Acceleration

A direct reading magnetic compass should be swung/calibrated when:

The aircraft has made more than a stated number of landings

There is a large change in magnetic longitude

The aircraft is stored for a long period and is frequently moved

There is a large and permanent change in magnetic latitude

Why does a temperature error still remain in the altimeter? Because the bimetallic compensator...

only senses the outside air temperature, not the cockpit temperature

does not compensate for outside air temperature effect on the pressure/altitude relation

does not vary with the static pressure and the required compensation does

does not have sufficient capacity

The air driven gyro has the following advantages to the electric driven gyro: 1. greater rigidity, 2. independent of electrical power supply, 3. constant spin rate, 4. cheap, 5. greater freedom of movement, 6. easy to maintain. Which combination is correct?

2, 4 and 6

1 and 3

1, 4 and 6

3 and 5

A temperature sensor has a recovery factor of 0.8. This means it will measure:

80% of SAT plus the RAM rise

SAT plus 80% of the RAM rise

80% of the sum of SAT and the RAM rise

80% of TAT

The purpose of the vibrating device of an altimeter is to:

reduce the hysteresis effect

inform the crew of a failure of the instrument

reduce the effect of friction in the linkages

allow damping of the measurement in the unit

The pressure measured at the forward tip of a pitot tube is:

Static pressure

Dynamic pressure

Total pressure

Total pressure plus static pressure

Wie lautet die Faustformel zur Abschätzung des Bankwinkels für eine Standardkurve (Rate 1 Turn)?

Bank angle = (TAS / 10) + 7

When turning onto a northerly heading the rose of a magnetic compass tends to undershoot; when turning onto a southerly heading it tends to overshoot:1) The compass indications are less reliable in the northern hemisphere than in the southern hemisphere.2) These compass oscillations following a lateral gust are not identical if the aircraft is heading north or south.3) This behaviour is due to the mechanical construction of the compass.4) This behaviour is a symptom of a badly swung compass.The correct statements are:

1, 3

1, 2, 4

2, 3

2, 3, 4

If the needle and the ball of a Turn and Slip indicator both show right, what does it indicate?

Turn to right and too little bank

Turn to left and too much bank

Turn to left and too little bank

Turn to right and too much bank

During a climb after takeoff from a contaminated runway, if the total pressure probe of the airspeed indicator is blocked, the pilot finds that indicated airspeed:

Decreases steadily

Decreases abruptly towards zero

Increases steadily

Increases abruptly towards V_NE

Why is the balance (slip) indicator centred in a coordinated turn?

In a coordinated turn there is no resultant force in the lateral aircraft direction

The centripetal force equalises the gravity force

The centripetal force equalises the centrifugal force

The ball is pressed on the supporting tube hard enough to have friction arrest the ball

The countermeasure to compensate apparent wander due to earth rate by creating a precession rate against the earth rate error is an intentional...

unbalance on the horizontal gimbal

unbalance on the vertical gimbal

friction in the bearings of the horizontal gimbal

friction in the bearings of the vertical gimbal

Which principle can be used for SAT measurement and what are the power feed requirements?

Bimetallic sensor, connected to DC bus

Bimetallic sensor, no power connection

Thermocouple sensor, connected to AC bus

Thermocouple, no power connection

022 Fragen T2

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