Exam quiz Aircraft General Knowledge - PPL(H) - Private Pilot Licence (Helicopter)

Question 1

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 2

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

Accepted Answer

Almost empty tanks

Answer

During parking on cold aprons

Answer

Almost full tanks

Answer

During parking on wet grass areas

Question 3

The advance angle is the angle between the...

Accepted Answer

Circumferential control rod and rotor blade longitudinal axis.

Answer

Advancing rotor blade and retreating rotor blade.

Answer

Fixed control rod and lower scissors.

Answer

Delta-three-flapping hinge and rotor blade longitudinal axis.

Question 4

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

Accepted Answer

Lift and weight.

Answer

Drag and lift.

Answer

Thrust and drag.

Answer

Weight and thrust.

Question 5

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

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 6

The slip indicator's ball (apparent vertical) has moved to the right during a right turn. By what actions may the ball led back to middle position?

Accepted Answer

Reduce bank, increase rate of turn

Answer

Reduce speed, increase bank

Answer

Reduce rate of turn, reduce bank

Answer

Increase bank, increase rate of turn

Question 7

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

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

Answer

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

Question 8

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

Accepted Answer

The attitude indicator and the flight director.

Answer

The attitude indicator and the relative bearing indicator.

Answer

The directional gyro and the rate gyro.

Answer

The attitude indicator and the radio magnetic indicator.

Question 9

The rotor brake should be engaged (provided that no other procedure is described in the flight manual)...

Accepted Answer

For outside parking.

Answer

During all prescribed pre-flight checks on the ground.

Answer

For inside parking.

Answer

During start-up until reaching the prescribed rotor rpm.

Question 10

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

Accepted Answer

Radio equipment, navigation equipment and gyros

Answer

Airspeed indicator, altimeter and artificial horizon

Answer

Radio equipment, navigation equipment and magnetic compass

Answer

Fuel quantity indication, radio equipment and altimeter

Question 11

Where does the condensation water converge in the tank?

Accepted Answer

At the lowest position

Answer

It floats on the fuel

Answer

Near the cap of the tank

Answer

It is mixed with the fuel

Question 12

What is the reason for static dischargers on aircraft?

Accepted Answer

To discharge static charging during flight

Answer

To improve the quality of radio transmission in high altitudes

Answer

To ensure grounding during refueling

Answer

To eliminate electrical interferences during intensive radio traffic

Question 13

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

Accepted Answer

Inclination of Earth's magnetic field lines

Answer

Temperature variations

Answer

Deviation in the cockpit

Answer

Acceleration of the aircraft

Question 14

The bank angle of a 2-minutes circle depends on the...

Accepted Answer

TAS.

Answer

CAS.

Answer

IAS.

Answer

Ground speed.

Question 15

What is the advantage of a pushing tail rotor over a pulling tail rotor?

Accepted Answer

Less thrust loss by free outflow of the accelerated air mass

Answer

Gain of thrust by Coanda and Magnus effect due to the airflow around the tail boom

Answer

Effective airflow of tail rotor blades by using the downwash

Answer

Self-compensating anti-torque operation by using the downwash

Question 16

Which statement about the flight manual is correct?

Accepted Answer

It contains limitations, normal procedures, emergency procedures and performance data.

Answer

It is a private pilot logbook.

Answer

It is valid only for IFR helicopters.

Answer

It replaces current charts and NOTAM.

Question 17

Which statement about a warning light is correct?

Accepted Answer

It should be interpreted using the flight manual and the relevant emergency or abnormal procedure.

Answer

It may be ignored if the aircraft flies normally.

Answer

It always requires immediate engine shutdown.

Answer

It replaces all instrument checks.

Question 18

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

Accepted Answer

Height above aerodrome

Answer

Altitude above MSL

Answer

Aerodrome elevation

Answer

Pressure altitude

Question 19

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

030°

Answer

270°

Answer

360°

Question 20

How can the belts of a belt clutch be tightened?

Accepted Answer

Increase of drive shaft distance

Answer

Approximation of two rotating plates

Answer

Increase of engine RPM

Answer

Extension of a pneumatic cylinder

Question 21

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

Accepted Answer

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

Answer

Total air pressure is measured and compared to static pressure

Answer

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

Answer

Static air pressure is measured and compared against a vacuum

Question 22

With increasing altitude and unchanged mixture setting, the air/fuel mixture...

Accepted Answer

Becomes richer.

Answer

Becomes more lean.

Answer

Stays constant.

Answer

Becomes liquid.

Question 23

Why is fuel drain sampling important for a PPL(H) flight?

Accepted Answer

It can reveal water, sediment or wrong fuel before engine start.

Answer

It is relevant only to airline transport operations.

Answer

It can be ignored when the flight remains local.

Answer

It is replaced by passenger preference.

Question 24

Which statement about rotor RPM limits is correct?

Accepted Answer

They must be respected because excessive or low RPM can be hazardous.

Answer

They apply only during maintenance.

Answer

They are advisory values with no operational meaning.

Answer

They are selected by ATC.

Question 25

Why is leaning the fuel mixture without an EGT indicator very dangerous in helicopters?

Accepted Answer

The risk of engine stoppage exists

Answer

The risk of vapour lock in the reserve tank exists

Answer

The electric fuel pump overheats

Answer

The power output from the engine is growing rapidly

Question 26

Which action best supports safe management of warning and caution lights?

Accepted Answer

Test and interpret them according to the flight manual.

Answer

Delay the decision until after take-off.

Answer

Use the item only if requested by passengers.

Answer

Ignore it when the helicopter has sufficient fuel.

Question 27

Why is pre-flight rotor blade inspection important for a PPL(H) flight?

Accepted Answer

It can reveal damage, delamination, erosion or loose fittings before flight.

Answer

It is relevant only to airline transport operations.

Answer

It can be ignored when the flight remains local.

Answer

It is replaced by passenger preference.

Question 28

QFE is the...

Accepted Answer

Barometric pressure at a reference datum, typically the runway threshold of an aerodrome.

Answer

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

Answer

Magnetic bearing to a station.

Answer

Altitude above the reference pressure level 1013.25 hPa.

Question 29

Which cockpit instruments are connected to the static port?

Accepted Answer

Altimeter, vertical speed indicator, airspeed indicator

Answer

Airspeed indicator, direct-reading compass, slip indicator

Answer

Altimeter, slip indicator, navigational computer

Answer

Airspeed indicator, altimeter, direct-reading compass

Question 30

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

Accepted Answer

Sparking plug is defective

Answer

Short circuit on the ground cable

Answer

Ignition switch is faulty

Answer

Starter is faulty

Question 31

Which action best supports safe management of seat and harness locking?

Accepted Answer

Check adjustment and locking before start.

Answer

Delay the decision until after take-off.

Answer

Use the item only if requested by passengers.

Answer

Ignore it when the helicopter has sufficient fuel.

Question 32

The correlator (for pitch compensation)...

Accepted Answer

Opens the throttle when the collective is raised.

Answer

Overlays periodic and collective control inputs from the pilot.

Answer

Increases rotor RPM when the carburettor heat is turned on.

Answer

Disables the engine via a spring-loaded resistance.

Question 33

What does the abbreviation HSI stand for?

Accepted Answer

Horizontal Situation Indicator

Answer

Horrifying Steep Inclination

Answer

Hybernating System Indication

Answer

Horizontal Slip Indicator

Question 34

A gyro which is rotating in space responds to forces being applied to it by an evasive movement...

Accepted Answer

At an angle of 90° to the force being applied.

Answer

At an angle of 45° to the force being applied.

Answer

In a northern direction.

Answer

At an angle of 180° to the force being applied.

Question 35

Which statement about carburettor icing is correct?

Accepted Answer

It can occur even when the outside air temperature is above freezing.

Answer

It occurs only below -20°C.

Answer

It is impossible in humid air.

Answer

It increases engine power.

Question 36

Which statement about the swashplate is correct?

Accepted Answer

It transmits cyclic and collective pitch inputs to the rotating rotor system.

Answer

It stores hydraulic fluid.

Answer

It measures exhaust gas temperature.

Answer

It locks the rotor blades during start.

Question 37

Which action best supports safe management of door and latch security?

Accepted Answer

Check all doors and panels before departure.

Answer

Delay the decision until after take-off.

Answer

Use the item only if requested by passengers.

Answer

Ignore it when the helicopter has sufficient fuel.

Question 38

What is a likely consequence of low hydraulic pressure?

Accepted Answer

control forces may increase on hydraulically boosted systems.

Answer

The altimeter automatically resets to standard pressure.

Answer

The aircraft becomes exempt from maintenance requirements.

Answer

The transponder changes to emergency code automatically.

Question 39

What is the most likely reason for the starter not turning when activated?

Accepted Answer

The rotor break is engaged

Answer

The magnetos are defect

Answer

The ignition is short-circuited

Answer

The alternator is defect

Question 40

Which statement about an altimeter is correct?

Accepted Answer

It indicates altitude by measuring static pressure changes.

Answer

It measures rotor RPM.

Answer

It indicates magnetic heading.

Answer

It senses fuel flow directly.

Question 41

Which statement about a governor is correct?

Accepted Answer

It helps maintain selected rotor or engine RPM within its operating range.

Answer

It replaces the pilot's lookout.

Answer

It controls QNH automatically.

Answer

It prevents all mast bumping.

Question 42

The sandwich structure consists of two...

Accepted Answer

Thin layers and a light core material.

Answer

Thick layers and a light core material.

Answer

Thin layers and a heavy core material.

Answer

Thick layers and a heavy core material.

Question 43

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

Accepted Answer

Decreases.

Answer

Remains constant.

Answer

Increases.

Answer

First decreases, from 5000 ft on increases.

Question 44

Which statement about engine oil pressure is correct?

Accepted Answer

A low or falling indication may require immediate action according to the flight manual.

Answer

It is unrelated to engine lubrication.

Answer

It is corrected by changing QNH.

Answer

It normally increases to zero in cruise.

Question 45

The rotor blades in a shrouded tail rotor can be arranged asymmetrically to...

Accepted Answer

Reduce the noise emissions.

Answer

Utilize the Coanda effect.

Answer

Increase the generated thrust.

Answer

Reduce the production costs.

Question 46

What might be the reason for scratches on the tail stringer?

Accepted Answer

Contact with ground

Answer

Old colour

Answer

Intense erosion

Answer

Rotor blade contact

Question 47

Which colour does Avgas 100 LL have?

Accepted Answer

Blue

Answer

Yellow

Answer

Green

Answer

Red

Question 48

Which action best supports safe management of fuel selector position?

Accepted Answer

Confirm the selector is in the required position.

Answer

Delay the decision until after take-off.

Answer

Use the item only if requested by passengers.

Answer

Ignore it when the helicopter has sufficient fuel.

Question 49

Which statement about a clutch is correct?

Accepted Answer

It allows engine power to be engaged progressively to the rotor system.

Answer

It measures manifold pressure.

Answer

It stores hydraulic pressure.

Answer

It replaces the tail rotor.

Question 50

Which statement about a circuit breaker is correct?

Accepted Answer

It protects an electrical circuit from excessive current.

Answer

It is used to adjust blade tracking.

Answer

It increases fuel pressure mechanically.

Answer

It sets the altimeter to QFE.

Question 51

Which statement about the magnetic compass is correct?

Accepted Answer

It is affected by acceleration, turning and nearby magnetic fields.

Answer

It is unaffected by aircraft electrical equipment.

Answer

It measures true north directly.

Answer

It needs pitot pressure to operate.

Question 52

What is a likely consequence of gearbox chip warning?

Accepted Answer

land as soon as appropriate according to the flight manual.

Answer

The altimeter automatically resets to standard pressure.

Answer

The aircraft becomes exempt from maintenance requirements.

Answer

The transponder changes to emergency code automatically.

Question 53

Which statement about a hydraulic boost system is correct?

Accepted Answer

It reduces control forces in the flight controls.

Answer

It increases fuel octane.

Answer

It cools the magnetic compass.

Answer

It replaces the rotor brake.

Question 54

Which actions shall be taken if the rotor RPM indicator fails during cruise flight?

Accepted Answer

Continue the flight as long as the engine RPM indicator works

Answer

Try to get back an indication by opening and closing the throttle

Answer

Increase engine power and continue the flight to the nearest aerodrome

Answer

Perform an emergency landing on suitable terrain

Question 55

Why are all the connecting flanges of the main shaft designed flexible?

Accepted Answer

To compensate for thermal stresses and installation errors

Answer

For the distribution of pressure and tensile forces

Answer

To have a predetermined breaking point for engine damage

Answer

For the frictional connection to the main rotor gearbox

Question 56

What is caused by the movement of the cyclic stick?

Accepted Answer

The swash plate is inclined and thus changes the pitch angle of the blades periodically

Answer

The lower scissors are twisted and consequently the pitch angle of the rotor blade is changed periodically

Answer

The sliding sleeve is axially moved and thus changes the pitch angle of the rotor blades collectively

Answer

The trim panels are inclined and consequently a torque on the rotor blade is produced

Question 57

Which part of the cycle of a four-stroke Otto engine can be seen in the attachment? Use figure (AGK-007)

Accepted Answer

First stroke - induction

Answer

Second stroke - compression

Answer

Fourth stroke - exhaust

Answer

Third stroke - power

Question 58

Which action best supports safe management of engine cooling airflow?

Accepted Answer

Monitor temperatures and avoid prolonged operation outside limits.

Answer

Delay the decision until after take-off.

Answer

Use the item only if requested by passengers.

Answer

Ignore it when the helicopter has sufficient fuel.

Question 59

The trim is used to...

Accepted Answer

Adapt the control force.

Answer

Lock control elements.

Answer

Move the centre of gravity.

Answer

Increase adverse yaw.

Question 60

The primer is...

Accepted Answer

An auxiliary pump in the fuel system to facilitate engine starting.

Answer

A nozzle in the Venturi tube of a carburettor for atomising the fuel.

Answer

A mechanical switch in the cockpit to engage the turbocharger.

Answer

A valve in the fuel control system for automatic mixture regulation.

Question 61

Which actions shall be taken if the engine oil pressure continuously drops to zero?

Accepted Answer

Land immediately on suitable terrain and be prepared for an autorotation

Answer

Check the mixture lever and enrich the mixture

Answer

Reduce engine performance and continue the flight to the destination

Answer

Monitor oil temperature and land at the nearest aerodrome

Question 62

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

Accepted Answer

Yellow

Answer

White

Answer

Red

Answer

Green

Question 63

The hydraulic pump of the control system is driven by the...

Accepted Answer

Main rotor gearbox.

Answer

Additional aggregate.

Answer

Engine.

Answer

Alternator.

Question 64

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

Exam simulation Aircraft General Knowledge - PPL(H) - Private Pilot Licence (Helicopter)

Exam simulation PPL(H) Helicopter Theory Exam Questions in English Aircraft General Knowledge 120 questions on 120 minutes

Exam simulation Aircraft General Knowledge - PPL(H) - Private Pilot Licence (Helicopter)

Exam simulation PPL(H) Helicopter Theory Exam Questions in English Aircraft General Knowledge 120 questions on 120 minutes

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