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

Question 1

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 2

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 3

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 4

Which components do rotor blades made of wood contain?

Accepted Answer

Spar of metal, filling material of wood and erosion protection of metal

Answer

Spar of wood, filling material of plastic, and outer skin of wood

Answer

Spar of wood, filling material of wood, and outer skin of plastic

Answer

Spar of metal, filling material of metal, and erosion protection of wood

Question 5

What is a likely consequence of fuel vent blockage?

Accepted Answer

fuel flow to the engine may be restricted.

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 6

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 7

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 8

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 9

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 10

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 11

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 12

What kind of helicopter needs a tail rotor?

Accepted Answer

Single-rotor helicopter with shaft drive

Answer

Twin-rotor helicopter with counter-rotating main rotors

Answer

Single-rotor helicopter with blade drive

Answer

Twin-rotor autogyro with counter-rotating main rotors

Question 13

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 14

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 15

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 16

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 17

The connection between the main rotor mast and the main rotor head is...

Accepted Answer

Screwed.

Answer

Welded.

Answer

Pressed.

Answer

Glued.

Question 18

Which statement about the vertical speed indicator is correct?

Accepted Answer

It uses static pressure rate of change to indicate climb or descent.

Answer

It measures ground speed by GPS only.

Answer

It measures engine torque.

Answer

It indicates tail rotor thrust.

Question 19

What is a likely consequence of carburettor heat application?

Accepted Answer

engine RPM or power may initially decrease before ice clears.

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 20

Which statement about drive belts is correct?

Accepted Answer

condition and tension must be within approved limits.

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 21

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 22

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 23

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 24

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 25

Why is door and latch security important for a PPL(H) flight?

Accepted Answer

It prevents distraction and possible damage in 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 26

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 27

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 28

Which pressure is sensed by the Pitot tube?

Accepted Answer

Total air pressure

Answer

Dynamic air pressure

Answer

Cabin air pressure

Answer

Static air pressure

Question 29

Which statement about the pitot-static system is correct?

Accepted Answer

It supplies pressure information to instruments such as the airspeed indicator and altimeter.

Answer

It powers the landing light.

Answer

It lubricates the main rotor bearing.

Answer

It controls the ELT antenna.

Question 30

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

Accepted Answer

Static pressure.

Answer

Dynamic pressure.

Answer

Total pressure.

Answer

Differential pressure.

Question 31

In which outside air temperature is icing most likely?

Accepted Answer

Between -5° C and +20° C

Answer

Between -15° C and 0° C

Answer

Between -20° C and +5° C

Answer

Between -10° C and +10° C

Question 32

Cylinder head temperature indication relates to...

Accepted Answer

The critical cylinder.

Answer

The average of all cylinders.

Answer

All Cylinders.

Answer

A random cylinder.

Question 33

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

Accepted Answer

TAS.

Answer

CAS.

Answer

IAS.

Answer

Ground speed.

Question 34

A spider control...

Accepted Answer

Changes the pitch angle of the rotor blades via an internal control rod.

Answer

Feeds fuel by the rotational movement of pistons with various lengths.

Answer

Prevents the overlay of collective and periodic control inputs on the main rotor.

Answer

Changes the ignition timing of the magneto ignition during start-up.

Question 35

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 36

What is the advantage of a gyrodyne compared to a helicopter?

Accepted Answer

High airspeed in cruise

Answer

Large centre of gravity limits

Answer

No gearbox is necessary

Answer

Low fuel consumption

Question 37

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 38

Which statement about aluminium structures is correct?

Accepted Answer

corrosion protection and inspection remain important.

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 39

What values are usually marked with a red line on instrument displays?

Accepted Answer

Operational limits

Answer

Operational areas

Answer

Recommended areas

Answer

Caution areas

Question 40

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 41

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 42

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 43

What is a tubular steel construction with a non self-supporting skin called?

Accepted Answer

Grid construction

Answer

Honeycomb structure

Answer

Monocoque construction

Answer

Semi-monocoque construction

Question 44

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 45

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

Accepted Answer

Yellow

Answer

White

Answer

Red

Answer

Green

Question 46

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 47

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 48

The control mixing assembly...

Accepted Answer

Overlays periodic and collective control inputs for main rotor pitch angle change.

Answer

Releases the sprag freewheel and prevents rotor blockage by the engine.

Answer

Ensures a constant pressure distribution in a hydraulic control system of a helicopter.

Answer

Opens the throttle and increases engine performance if the collective is reduced.

Question 49

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 50

Why is battery condition important for a PPL(H) flight?

Accepted Answer

It affects starting capability and emergency electrical endurance.

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 51

What does the slip indicator show?

Accepted Answer

Apparent vertical

Answer

Aircraft's bank

Answer

Vertical to horizon

Answer

Rate of turn

Question 52

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 53

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 54

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 55

Which part of the cycle of a four-stroke Otto engine can be seen in the attachment? Use figure (AGK-008)

Accepted Answer

Second stroke - compression

Answer

First stroke - induction

Answer

Third stroke - power

Answer

Fourth stroke - exhaust

Question 56

Which value can the pilot derive from the tachometre?

Accepted Answer

Crankshaft or main rotor revolutions per minute

Answer

Airspeed of the helicopter

Answer

Vertical speed of the helicopter

Answer

Engine performance and rotor performance

Question 57

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 58

Which statement about the main gearbox is correct?

Accepted Answer

It reduces engine output speed and transmits power to the rotor system.

Answer

It stores the emergency locator transmitter.

Answer

It measures outside air temperature.

Answer

It replaces the clutch.

Question 59

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 60

Why is engine cooling airflow important for a PPL(H) flight?

Accepted Answer

It keeps engine temperatures within limits during ground and flight operation.

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 61

Which of the mentioned cockpit instruments is connected to the pitot tube?

Accepted Answer

Airspeed indicator

Answer

Vertical speed indicator

Answer

Altimeter

Answer

Direct-reading compass

Question 62

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 63

In which phase of flight must the carburettor heating be switched off although carburettor icing might be expected?

Accepted Answer

During take-off

Answer

During cruise

Answer

During taxi

Answer

During climb

Question 64

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.

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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