Exam quiz Aircraft General Knowledge - PPL(A) - Private Pilot License

Question 1

What is a cause for the dip error on the direct-reading compass?

Accepted Answer

Inclination of earth's magnetic field lines

Answer

Deviation in the cockpit

Answer

Acceleration of the airplane

Answer

Temperature variations

Question 2

The trim is used to...

Accepted Answer

Adapt the control force.

Answer

Increase adverse yaw.

Answer

Move the centre of gravity.

Answer

Lock control elements.

Question 3

The highest absorbtion of humidity in fuel can be observed in which situation?

Accepted Answer

Almost empty tanks

Answer

During parking on wet gras areas

Answer

During parking on cold aprons

Answer

Almost full tanks

Question 4

The Pitot / static system is required to...

Accepted Answer

Measure total and static air pressure.

Answer

Prevent potential static buildup on the aircraft.

Answer

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

Answer

Prevent icing of the Pitot tube.

Question 5

Which part of the cycle of a four-stroke Otto engine can be seen in the attachment? See figure (AGK-007) (1,00 P.) Siehe Anlage 5

Accepted Answer

First stroke - induction

Answer

Second stroke - compression

Answer

Fourth stroke - exhaust

Answer

Third stroke - power

Question 6

Which wing configuration is shown in the attachment? See figure (AGK-002) (1,00 P.) Siehe Anlage 1

Accepted Answer

Strut-braced high wing

Answer

High wing

Answer

Mid wing

Answer

Low wing

Question 7

Which instrument can be affected by the hysteresis error?

Accepted Answer

Altimeter

Answer

Vertical speed indicator

Answer

Direct reading compass

Answer

Tachometer

Question 8

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

Accepted Answer

330°

Answer

360°

Answer

270°

Answer

030°

Question 9

The fuselage structure may be damaged by...

Accepted Answer

Exceeding the manoeuvering speed in heavy gusts.

Answer

Neutralizing stick forces according to actual flight state

Answer

Stall after exceeding the maximum angle of attack.

Answer

Airspeed decreasing below a certain value.

Question 10

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

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 11

What devices can be affected by a failure of the electrical system in a helicopter?

Accepted Answer

Radio equipment, navigation equipment and gyros

Answer

Fuel quantity indication, radio equipment and altimeter

Answer

Radio equipment, navigation equipment and magnetic compass

Answer

Airspeed indicator, altimeter and artificial horizon

Question 12

What does the slip indicator show?

Accepted Answer

Apparent vertical

Answer

Rate of turn

Answer

Vertical to horizon

Answer

Airplane's bank

Question 13

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

Accepted Answer

An altitude indication which is too high.

Answer

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

Answer

An altitude indication which is too low

Answer

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

Question 14

Where does the condensation water converge in the tank?

Accepted Answer

At the lowest position

Answer

It floats on the fuel

Answer

It floats on the fuel

Answer

It is mixed with the fuel

Question 15

What is the purpose of a ground adjustable trim tab?

Accepted Answer

It is a non-movable metal tab on a flight control which is adjusted on the ground to optimize the inflight characteristics of an aircraft

Answer

It is set on the ground to correct an out-of-trim condition arising from the mass and balance situation of an aircraft

Answer

It is preset on the ground and further adjusted in flight to reduce the need to constantly re-trim the aircraft

Answer

It is used to optimize the handling characteristics of an aircraft during ground operations

Question 16

What is the task of cooling fins on air-cooled engine cylinders?

Accepted Answer

Quick heat transfer to the surrounding air flow by expanding the surface

Answer

Cooling of the cylinder surrounding airflow and forwarding to hotter engine parts

Answer

Leading the airflow to parts designated to be cooled

Answer

Increasing the airflow thus improving cooling of cylinder parts

Question 17

At higher altitudes, true airspeed (TAS) tends to be higher than calibrated airspeed (CAS). A rough estimate of the TAS can be obtained by...

Accepted Answer

Adding 2 % of the CAS for every 1000 ft altitude.

Answer

Subtracting 2 % of the CAS for every 1000 ft altitude.

Answer

Adding 10 % of the CAS for every 1000 ft altitude.

Answer

Subtracting 10 % of the CAS for every 1000 m altitude.

Question 18

Which colour does Avgas 100 LL have?

Accepted Answer

Blue

Answer

Red

Answer

Green

Answer

Yellow

Question 19

Which cockpit instruments are connected to the static port?

Accepted Answer

Altimeter, vertical speed indicator, airspeed indicator

Answer

Airspeed indicator, direct-reading compass, slip indicato

Answer

Altimeter, slip indicator, navigational computer

Answer

Airspeed indicator, altimeter, direct-reading compass

Question 20

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

Accepted Answer

Lift and weight.

Answer

Thrust and drag.

Answer

Drag and lift.

Answer

Weight and thrust.

Question 21

What must be considered if the alternator fails in a helicopter?

Accepted Answer

No change as long as the battery provides enough power

Answer

All instruments and warning systems will fail

Answer

The engine runs roughly and is prone to knocking

Answer

Only high power consumers will failing

Question 22

What is the meaning of the red range on the airspeed indicator?

Accepted Answer

Speed which must not be exceeded regardless of circumstances

Answer

Speed which must not be exceeded within bumpy air

Answer

Speed which must not be exceeded with flaps extended

Answer

Speed which must not be exceeded in turns with more than 45° bank

Question 23

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?

Accepted Answer

270°

Answer

300°

Answer

360°

Answer

240°

Question 24

What does the dynamic pressure depend directly on?

Accepted Answer

Air density and airflow speed squared

Answer

Air pressure and air temperature

Answer

Air density and lift coefficient

Answer

Lift- and drag coefficient

Question 25

Which constructional elements give the wing its profile shape?

Accepted Answer

Rips

Answer

Planking

Answer

Spar

Answer

Tip

Question 26

Which of the following are an aircraft's secondary flight controls?

Accepted Answer

Wing flaps, leading edge devices, spoilers or speedbrakes, trim systems

Answer

Elevator, rudder, aileron

Answer

All movable parts on the aircraft which aid in controlling the aircraft

Answer

Elevator, rudder, aileron, trim tabs, high-lift wing devices, power controls

Question 27

Which is the purpose of the altimeter subscale?

Accepted Answer

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

Answer

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

Answer

To adjust the altimeter reading for non-standard temperature

Answer

To correct the altimeter reading for system errors

Question 28

The altimeter's reference scale is set to airfield pressure (QFE). What indication is shown during the flight?

Accepted Answer

Height above airfield

Answer

Pressure altitude

Answer

Airfield elevation

Answer

Altitude above MSL

Question 29

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

Accepted Answer

Frames and stringer

Answer

Girders, rips and stringers

Answer

Rips, frames and covers

Answer

Covers, stringers and forming parts

Question 30

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

Accepted Answer

Deviation

Answer

Variation

Answer

Declination

Answer

Inclination

Question 31

What is likely to be the cause if the engine runs unusually rough while checking the magnetos?

Accepted Answer

Sparking plug is defective

Answer

Starter is faulty

Answer

Short circuit on the ground cable

Answer

Ignition switch is faulty

Question 32

What behaviour is shown by a rotating gyro in space?

Accepted Answer

It tends to maintain its position in space

Answer

It moves in accordance with the body surrounding it

Answer

It swings from east to west like a pendulum

Answer

It moves in circles with a stadily decreasing radius

Question 33

A construction made of frames and stringer with a supporting skin is called...

Accepted Answer

Semi-monocoque construction.

Answer

Honeycomb structure

Answer

Grid construction.

Answer

Wood- or mixed construction.

Question 34

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

Accepted Answer

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

Answer

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

Answer

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

Answer

Static air pressure is measured and compared against a vacuum

Question 35

Calibrated airspeed (CAS) equals...

Accepted Answer

Indicated airspeed (IAS) corrected for instrument and position error

Answer

Equivalent airspeed (EAS) corrected for altitude.

Answer

Ground speed (GS) corrected for instrument and position error

Answer

True airspeed (TAS) corrected for wind.

Question 36

Which of the instruments listed below obtain their readings through pressure measurement?

Accepted Answer

Oil pressure gauge, fuel pressure gauge, manifold pressure gauge, altimeter, vertical speed indicator, airspeed indicator, suction gauge

Answer

Oil pressure gauge, fuel pressure gauge, fuel quantity gauge, manifold pressure gauge, differential pressure gauge, altimeter

Answer

Airspeed indicator, vertical speed indicator, altimeter, directional gyro, turn and bank coordinator, oil pressure gauge, fuel pressure gauge

Answer

Airspeed indicator, vertical speed indicator, altimeter, magnetic compass, oil pressure gauge, fuel pressure gauge

Question 37

What kind of hydraulic oil is used in aeroplane systems today?

Accepted Answer

Synthetic oil

Answer

Mineral oil

Answer

Vegetable oi

Answer

Bio-oil

Question 38

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

Accepted Answer

Grid construction

Answer

Semi-monocoque construction.

Answer

Honeycomb structure

Answer

Monocoque construction

Question 39

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

Accepted Answer

3; vertical axis, lateral axis, longitudinal axis

Answer

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

Answer

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

Answer

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

Question 40

The vertical speed indicator measures the difference of pressure between...

Accepted Answer

The present static pressure and the static pressure of a previous moment

Answer

The present total pressure and the total pressure of a previous moment.

Answer

The present dynamic pressure and the dynamic pressure of a previous moment

Answer

The present dynamic pressure and the static pressure of a previous moment.

Question 41

What is the direct influence by switching on the carburettor heating on fixed propeller engines during engine run-up?

Accepted Answer

RPM decreases

Answer

Angle of attack decreases

Answer

Angle of attack increases

Answer

RPM increaes

Question 42

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

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 43

When using direct current, electrically driven flight instruments are marked with...

Accepted Answer

"DC"

Answer

"EL".

Answer

"AL".

Answer

"CO".

Question 44

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?

Accepted Answer

210°.

Answer

360°

Answer

150°.

Answer

180°.

Question 45

How do you call fuel mixtures with a high amount of fuel?

Accepted Answer

Rich

Answer

Lean

Answer

Full

Answer

Empty

Question 46

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

Accepted Answer

Deviation, turning and acceleration errors

Answer

Gravity and magnetism

Answer

Inclination and declination of the earth's magnetic field

Answer

Variation, turning and acceleration errors

Question 47

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?

Accepted Answer

The trim tab moves down, the elevator moves up

Answer

The trim tab moves up, the elevator moves up

Answer

The trim tab moves up, the elevator moves down

Answer

The trim tab moves down, the elevator moves down

Question 48

The term "inclination" is defined as...

Accepted Answer

Angle between earth's magnetic field lines and horizontal plane

Answer

Deviation induced by electrical fields.

Answer

Angle between airplane's longitudinal axis and true north

Answer

Angle between magnetic and true north

Question 49

The term "static pressure" is defined as pressure...

Accepted Answer

Of undisturbed airflow.

Answer

Inside the airplane cabin.

Answer

Resulting from orderly flow of air particles.

Answer

Sensed by the pitot tube.

Question 50

What is the meaning of the white arc on the airspeed indicator?

Accepted Answer

Speed range for extended flaps

Answer

Speed range in bumpy air

Answer

Speed range in smooth air

Answer

Speed range not to exceed

Question 51

An aeroplane's current supply is carried out by the: 1. Battery 2. Generator 3. Relay 4. Circuit breaker

Accepted Answer

1 and 2

Answer

1 and 4

Answer

3 and 4

Answer

2 and 3

Question 52

An attitude director indicator (ADI) combines the information provided by...

Accepted Answer

The attitude indicator and the flight director.

Answer

The directional gyro and the rate gyro.

Answer

The attitude indicator and the relative bearing indicator.

Answer

The attitude indicator and the radio magnetic indicator

Question 53

What is the reason for static dischargers on aircraft?

Accepted Answer

To discharge static charging during flight

Answer

To ensure grounding during refueling

Answer

To eliminate electrical interferences during intensive radio traffic

Answer

To improve the quality of radio transmission in high altitudes

Question 54

What kind of control surface is connected with the nose wheel?

Accepted Answer

Rudder

Answer

Elevator

Answer

Trim rudder

Answer

Aileron

Question 55

Which of the stated materials shows the highest strength?

Accepted Answer

Carbon fiber re-inforced plastic

Answer

Aluminium

Answer

Wood

Answer

Magnesium

Question 56

A vertical speed indicator measures the difference between...

Accepted Answer

Instantaneous static pressure and previous static pressure.

Answer

Instantaneous total pressure and previous total pressure.

Answer

Total pressure and static pressure.

Answer

Dynamic pressure and total pressure

Question 57

A horizontal situation indicator (HSI) combines the information provided by...

Accepted Answer

The directional gyro and the VHF navigation receiver.

Answer

The directional gyro and the flight director.

Answer

The rate gyro and the slip indicator

Answer

The attitude indicator and the flight director.

Question 58

What does the octane rating or fuel grade describe?

Accepted Answer

Anti-knock rating

Answer

Flame front speed

Answer

Ignition timing

Answer

Combustion temperature

Question 59

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

Accepted Answer

Higher than the true altitude.

Answer

Lower than the true altitude.

Answer

Eqal to the true altitude.

Answer

Equal to the standard altitude.

Question 60

How does a balance tab move in relation to the flight control surface that it is coupled with?

Accepted Answer

In the opposite direction

Answer

At an angle of 90°

Answer

At an angle of 45°

Answer

In the same direction

Question 61

With increasing altitude, the power of a carburettor engine...

Accepted Answer

Decreases

Answer

Remains constant.

Answer

First decreases, from 5000 ft on increases

Answer

Increases

Question 62

Which cylinder arragement is commonly used on small aircrafts and motor gliders?

Accepted Answer

Horizontally opposed engine

Answer

Radial engine

Answer

In-line engine

Answer

V-type engine

Question 63

Number 1 on the gear designates the... See figure (AGK-005) (1,00 P.) Siehe Anlage 3

Accepted Answer

Fork

Answer

Strut

Answer

Torque link

Answer

Inner shock absorber.

Question 64

A turn and bank (or turn and slip) coordinator provides information regarding...

Accepted Answer

The rate of turn and coordination, i.e. slip or skid, of the turn.

Answer

The coordination of the turn and slip angle.

Answer

The pitch and bank angle of the aircraft.

Answer

The rate of turn and bank angle of the aircraft

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