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

Question 1

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 2

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 3

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 4

Why is fuel selector position important for a PPL(H) flight?

Accepted Answer

An incorrect selection can interrupt fuel supply.

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 5

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 6

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 7

A true altitude is...

Accepted Answer

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

Answer

A pressure altitude corrected for non-standard temperature.

Answer

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

Answer

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

Question 8

The Pitot / static system is required to...

Accepted Answer

Measure total and static air pressure.

Answer

Prevent icing of the Pitot tube.

Answer

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

Answer

Prevent potential static buildup on the aircraft.

Question 9

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 10

Which statement about a turbine engine TOT or TGT limit is correct?

Accepted Answer

It protects the engine from excessive gas temperature.

Answer

It is a navigation bearing.

Answer

It controls radio squelch.

Answer

It measures cabin oxygen only.

Question 11

The droop stop...

Accepted Answer

Reduces the risk of rotor blade contact with the tail boom at low rotor RPM.

Answer

Limits blade flapping and prevents rotor blade stall.

Answer

Decreases the bending and tensional loads on the rotor blades in all flight conditions.

Answer

Allows the rotor blades to flap upwards without restrictions.

Question 12

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 13

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

Accepted Answer

Deviation.

Answer

Declination.

Answer

Inclination.

Answer

Variation.

Question 14

Where does a geometrically twisted rotor blade have its largest pitch angle?

Accepted Answer

Next to the rotor blade roots

Answer

Between rotor blade tips and rotor blade roots

Answer

In the entire area of the rotor blade

Answer

Next to the rotor blade tips

Question 15

Why is seat and harness locking important for a PPL(H) flight?

Accepted Answer

It prevents pilot or passenger movement interfering with control.

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 16

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

Accepted Answer

No change as long as the battery provides enough power

Answer

The engine runs roughly and is prone to knocking

Answer

Only high power consumers will fail

Answer

All instruments and warning systems will fail

Question 17

What is the purpose of the tank ventilation?

Accepted Answer

To prevent underpressure caused by fuel consumption

Answer

To distribute the fuel from one tank segment to the other during flight

Answer

To prevent water disposal during parking

Answer

To prevent fuel spillage during refueling on the filler plug

Question 18

When is it necessary to adjust the pressure in the reference scale of an altimeter?

Accepted Answer

Before every flight and during cross country flights

Answer

After maintenance has been finished

Answer

Once a month before flight operation

Answer

Every day before the first flight

Question 19

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

Accepted Answer

Synthetic oil

Answer

Bio-oil

Answer

Mineral oil

Answer

Vegetable oil

Question 20

Which statement about the anti-torque pedals is correct?

Accepted Answer

They control yaw by changing tail rotor thrust or equivalent anti-torque thrust.

Answer

They control rotor RPM directly.

Answer

They operate the landing light.

Answer

They change the altimeter setting.

Question 21

What is the unit for electrical power?

Accepted Answer

Watt

Answer

Ampere

Answer

Volt

Answer

Ohm

Question 22

Which components do rotor blades made of synthetic material contain?

Accepted Answer

Spar of lead and synthetic material, filling material and outer skin of synthetic material, erosion protection of stainless steel

Answer

Spar of synthetic material, filling material and outer skin of synthetic material, erosion protection of aluminum

Answer

Spar of aluminum and synthetic material, filling material and outer skin and erosion protection of synthetic material

Answer

Spar of stainless steel, filling material and outer skin and erosion protection of synthetic material

Question 23

What is the major task of a carburettor?

Accepted Answer

To produce an ignitable air/fuel mixture

Answer

To provide additional fuel to cool the engine

Answer

To pump fuel from the tanks into the cylinder

Answer

To control the aircraft's speed through the throttle valve

Question 24

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 25

What difference in altitude is shown by an altimeter, if the reference pressure scale setting is changed from 1000 hPa to 1010 hPa?

Accepted Answer

80 m more than before

Answer

Values depending on QNH

Answer

Zero

Answer

80 m less than before

Question 26

What happens during oil filter clogging?

Accepted Answer

A bypass valve opens thus enabling the circulation to continue, debris will not be filtered

Answer

The oil circulation will end after 30 minutes so that a proper engine run will not be guaranteed

Answer

A bypass valve opens thus enabling the circulation to continue, debris will be filtered by an alternate filter

Answer

The oil circulation will end after 15 minutes so that a proper engine run will not be guaranteed

Question 27

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 28

What is a likely consequence of alternator failure?

Accepted Answer

battery power may be the remaining electrical source.

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 29

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 30

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

Accepted Answer

The difference between the total pressure and the static pressure

Answer

The difference between the dynamic pressure and the static pressure

Answer

The difference between the total pressure and the dynamic pressure

Answer

The difference between the standard pressure and the total pressure

Question 31

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 32

Which statement about the collective lever is correct?

Accepted Answer

It changes the pitch of all main rotor blades collectively.

Answer

It changes only tail rotor pitch.

Answer

It controls the altimeter subscale.

Answer

It selects the fuel tank vent.

Question 33

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 34

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 35

What is a likely consequence of blocked static port?

Accepted Answer

altimeter and vertical speed indications may become unreliable.

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 36

What cylinder arrangement is common in helicopters with piston engines?

Accepted Answer

Boxer engine

Answer

Radial engine

Answer

Line engine

Answer

V-type engine

Question 37

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 38

An aircraft cruises on a heading of 180° with a true airspeed of 100 kt. The wind comes from 180° with 30 kt. Neglecting instrument and position errors, which will be the approximate reading of the airspeed indicator?

Accepted Answer

100 kt

Answer

70 kt

Answer

30 kt

Answer

130 kt

Question 39

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 40

Which statement about static pressure is correct?

Accepted Answer

It is the pressure of undisturbed ambient air.

Answer

It is the same as fuel pressure.

Answer

It is measured only inside the cabin.

Answer

It is generated by the engine oil pump.

Question 41

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 42

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 43

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 44

Which statement about a piston engine manifold pressure gauge is correct?

Accepted Answer

It indicates induction pressure and is related to engine power.

Answer

It indicates magnetic variation.

Answer

It measures rotor blade coning.

Answer

It displays DME distance.

Question 45

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 46

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 47

Which light colour advises the pilot to the condition "corrective action may be required in the future"?

Accepted Answer

Amber (orange)

Answer

Green

Answer

Red

Answer

Blue

Question 48

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

Accepted Answer

An altitude indication which is too high.

Answer

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

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.

Question 49

The mast bearing on the upper gearbox output acts against...

Accepted Answer

Traction and bending forces.

Answer

Torsions.

Answer

Torques.

Answer

Contact pressure.

Question 50

Which statement about transparent windscreens is correct?

Accepted Answer

cleaning should use approved materials to avoid scratches or crazing.

Answer

They require no inspection once installed.

Answer

They may be repaired with household adhesive.

Answer

They are unaffected by heat, UV and operating time.

Question 51

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 52

Which statement about an ELT is correct?

Accepted Answer

It is intended to transmit a distress signal after an accident or when manually activated.

Answer

It is an engine temperature limiter.

Answer

It replaces a transponder.

Answer

It is used to select radio volume.

Question 53

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

Accepted Answer

Of undisturbed airflow.

Answer

Sensed by the pitot tube.

Answer

Resulting from orderly flow of air particles.

Answer

Inside the aircraft cabin.

Question 54

What is a likely consequence of incorrect QNH set on the altimeter?

Accepted Answer

the indicated altitude will be wrong.

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 55

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 56

The electrical power supply in a helicopter is normally provided by: 1. Battery 2. Generator 3. Relay 4. Circuit breaker

Accepted Answer

1 and 2

Answer

3 and 4

Answer

2 and 3

Answer

1 and 4

Question 57

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 58

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 59

Which action best supports safe management of battery condition?

Accepted Answer

Check charge and indications before flight.

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 60

What is the purpose of engine oil in piston engine?

Accepted Answer

Cooling, lubrication of the engine and disposal of fine abrasion.

Answer

Cooling, lubrication and increasing engine performance.

Answer

For noise reduction and bearing of the propeller shaft.

Answer

Cooling of the engine and lubrication of propeller shaft.

Question 61

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

360°

Answer

300°

Answer

240°

Question 62

Which statement about a rotor brake is correct?

Accepted Answer

It is used to slow or stop the rotor after shutdown when permitted by the flight manual.

Answer

It is used to control yaw in flight.

Answer

It replaces the freewheel unit.

Answer

It should be applied during autorotation.

Question 63

Why is warning and caution lights important for a PPL(H) flight?

Accepted Answer

They provide early indication of abnormal system conditions.

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 64

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

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

Exam simulation PPL(H) Exam Question Bank Aircraft General Knowledge 120 questions on 120 minutes

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

Exam simulation PPL(H) Exam Question Bank Aircraft General Knowledge 120 questions on 120 minutes

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