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Langue	English
Catégorie	Technique
Niveau	Université
Crée / Actualisé	01.02.2025 / 03.05.2025
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QFE is the...

magnetic bearing to a station.

barometric pressure at a reference datum, typically the runway threshold of an airfield.

barometric pressure adjusted to sea level, using the international standard atmosphere (ISA).

altitude above the reference pressure level 1013.25 hPa.

With decreasing air density the airflow speed increases at stall speed (TAS) and vice versa. How has a final approach to be conducted on a hot summer day?

With unchanged speed indication (IAS)

With additional speed according POH

With increased speed indication (IAS)

With decreased speed indication (IAS)

Which of the following states the working principle of an airspeed indicator?

Total air pressure is measured and compared against static air pressure.

Dynamic air pressure is measured by the Pitot tube and converted into a speed indication by the airspeed indicator

Total air pressure is measured by the static ports and converted into a speed indication by the airspeed indicator

Static air pressure is measured and compared against a vacuum.

What is necessary for the determination of speed (IAS) by the airspeed indicator?

The difference between the total pressure and the static pressure

The difference between the total pressure and the dynamic pressure

The difference between the dynamic pressure and the static pressure

The difference between the standard pressure and the total pressure

Information about maximum allowed airspeeds can be found where?

POH, approach chart, vertical speed indicator

POH, Cockpit panel, airspeed indicator

airspeed indicator, cockpit panel and AIP part ENR

POH and posting in briefing room

The Caution Area is marked on an airspeed indicator by what color?

Green

Yellow

White

Red

Where does the inclination reach its lowest value?

At the geographic equator

At the magnetic poles

At the magnetic equator

At the geographic poles

The term "inclination" is defined as...

angle between airplane's longitudinal axis and true north.

angle between earth's magnetic field lines and horizontal plane.

angle between magnetic and true north.

deviation induced by electrical fields.

Electronic devices on board of an aeroplane have influence on the...

turn coordinator.

artificial horizon.

airspeed indicator.

direct reading compass.

The compass error caused by the aircraft's magnetic field is called...

variation.

deviation.

declination.

inclination.

The indication of a magnetic compass deviates from magnetic north direction due to what errors?

Gravity and magnetism

Variation, turning and acceleration errors

Inclination and declination of the earth's magnetic field

Deviation, turning and acceleration errors

An aircraft in the northern hemisphere intends to turn on the shortest way from a heading of 360° to a heading of 270°. At approximately which indication of the magnetic compass should the turn be terminated?

300°

360°

270°

240°

An aircraft in the northern hemisphere intends to turn on the shortest way from a heading of 030° to a heading of 180°. At approximately which indicated magnetic heading should the turn be terminated?

210°

360°

180°

150°

Which levers in a glider's cockpit are indicated by the colors red, blue and green? Levers for usage of ...

speed brakes, cabin hood lock and gear.

cabin hood release, speed brakes, elevator trim.

speed brakes, cable release and elevator trim.

gear, speed brakes and elevator trim tab.

What is a tubular steel construction with a non self-supporting skin referred to as?

Semi-monocoque construction.

Monocoque construction

Grid construction

Honeycomb structure

Primary fuselage structures of wood or metal planes are usually made up by what components?

Frames and stringer

Covers, stringers and forming parts

Girders, rips and stringers

Rips, frames and covers

What are the major components of an aircraft's tail?

Steering wheel and pedals

Rudder and ailerons

Horizontal tail and vertical tail

Ailerons and elevator

Which constructional elements give the wing its profile shape?

Spar

Planking

Rips

Tip

The load factor "n" describes the relationship between...

lift and weight.

weight and thrust.

thrust and drag.

drag and lift.

Which are the advantages of sandwich structures?

Good formability and high temperature durability

Low weight, high stiffness, high stability, and high strength

High temperature durability and low weight

High strength and good formability

Which of the stated materials shows the highest strength?

Carbon fiber re-inforced plastic

Aluminium

Wood

Magnesium

A glider's trim lever is used to...

reduce the adverse yaw.

reduce stick force on the rudder.

reduce stick force on the elevator.

reduce stick force on the ailerons.

The fuselage structure may be damaged by...

stall after exceeding the maximum angle of attack.

airspeed decreasing below a certain value.

neutralizing stick forces according to actual flight state.

exceeding the manoeuvering speed in heavy gusts.

About how many axes does an aircraft move and what are these axes called?

4; vertical axis, lateral axis, longitudinal axis, axis of speed

4; optical axis, imaginary axis, sagged axis, axis of evil

3; vertical axis, lateral axis, longitudinal axis

3; x-axis, y-axis, z-axis

A movement around the longitudinal axis is primarily initiated by the...

trim tab.

elevator.

ailerons.

rudder.

What are the primary and the secondary effects of a rudder input to the left?

Primary: yaw to the right Secondary: roll to the right

Primary: yaw to the left Secondary: roll to the left

Primary: yaw to the right Secondary: roll to the left

Primary: yaw to the left Secondary: roll to the right

What is the effect of pulling the control yoke or stick backwards?

The aircraft's tail will produce an increased upward force, causing the aircraft's nose to rise

The aircraft's tail will produce an increased downward force, causing the aircraft's nose to rise

The aircraft's tail will produce an increased downward force, causing the aircraft's nose to drop

The aircraft's tail will produce an decreased upward force, causing the aircraft's nose to drop

What is the purpose of the secondary flight controls?

To improve the turn characteristics of an aircraft in the low speed regime during approach and landing

To improve the performance characteristics of an aircraft and relieve the pilot of excessive control forces

To constitute a backup system for the primary flight controls

To enable the pilot to control the aircraft's movements about its three axes

The trim wheel or lever in the cockpit is moved aft by the pilot. What effect does this action have on the trim tab and on the elevator?

The trim tab moves up, the elevator moves down

The trim tab moves down, the elevator moves down

The trim tab moves down, the elevator moves up

The trim tab moves up, the elevator moves up

When trimming an aircraft nose up, in which direction does the trim tab move?

Depends on CG position

In direction of rudder deflection

It moves down

It moves up

The Pitot / static system is required to...

correct the reading of the airspeed indicator to zero when the aircraft is static on the ground.

prevent potential static buildup on the aircraft.

prevent icing of the Pitot tube.

measure total and static air pressure.

Which pressure is sensed by the Pitot tube?

Cabin air pressure

Total air pressure

Dynamic air pressure

Static air pressure

Which is the purpose of the altimeter subscale?

To adjust the altimeter reading for non-standard temperature

To reference the altimeter reading to a predetermined level such as mean sea level, aerodrome level or pressure level 1013.25 hPa

To correct the altimeter reading for system errors

To set the reference level for the altitude decoder of the transponder

In which way may an altimeter subscale which is set to an incorrect QNH lead to an incorrect altimeter reading?

If the subscale is set to a higher than actual pressure, the indication is too high. This may lead to much closer proximity to the ground than intended

If the subscale is set to a lower than actual pressure, the indication is too high. This may lead to much closer proximity to the ground than intended

If the subscale is set to a lower than actual pressure, the indication is too low. This may lead to much closer proximity to the ground than intended

If the subscale is set to a higher than actual pressure, the indication is too low. This may lead to much greater heights above the ground than intended

Lower-than-standard temperature may lead to...

an altitude indication which is too low.

an altitude indication which is too high.

a blockage of the Pitot tube by ice, freezing the altimeter indication to its present value.

a correct altitude indication as long as the altimeter subscale is set to correct for non-standard temperature.

A true altitude is...

a height above ground level corrected for non-standard pressure.

a pressure altitude corrected for non-standard temperature.

an altitude above mean sea level corrected for non-standard temperature.

a height above ground level corrected for non-standard temperature.

During a flight in colder-than-ISA air the indicated altitude is...

higher than the true altitude.

lower than the true altitude.

equal to the standard altitude.

equal to the true altitude.

Which instrument can be affected by the hysteresis error?

Tachometer

Altimeter

Vertical speed indicator

Direct reading compass

The measurement of altitude is based on the change of the...

static pressure.

differential pressure.

dynamic pressure.

total pressure.

Which of the following options states the working principle of a vertical speed indicator?

Measuring the present static air pressure and comparing it to the static air pressure inside a reservoir

Total air pressure is measured and compared to static pressure

Measuring the vertical acceleration through the displacement of a gimbal-mounted mass

Static air pressure is measured and compared against a vacuum

SPL - Aircraft General Knowledge

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