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

Question 1

Which statement about composite rotor blades is correct?

Accepted Answer

damage may be difficult to see and must be inspected as required.

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 2

A steel or lead rotor blade spar...

Accepted Answer

Improves the autorotation characteristics by increased inertia.

Answer

Prevents high-frequency vibrations to the main rotor system.

Answer

Is necessary for the connection to the main rotor head.

Answer

Holds loads of the uniform lift distribution.

Question 3

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 4

What does the slip indicator show?

Accepted Answer

Apparent vertical

Answer

Aircraft's bank

Answer

Vertical to horizon

Answer

Rate of turn

Question 5

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 6

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 7

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 8

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 9

Which action best supports safe management of fuel drain sampling?

Accepted Answer

Drain and visually check samples where required.

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

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 11

What allows the removal of drag hinges in semi-rigid rotor systems?

Accepted Answer

Rotor blade attachment below the central flapping hinge

Answer

Use of a gimbal ring with central flapping hinge

Answer

Geometric or aerodynamic twist of the rotor blades

Answer

Additional cone hinges on the rotor head

Question 12

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 13

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 14

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 15

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 16

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 17

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 18

Which statement about fuel contamination is correct?

Accepted Answer

It may be detected by draining fuel samples before flight.

Answer

It is detected only by the altimeter.

Answer

It is harmless in turbine engines.

Answer

It always improves fuel flow.

Question 19

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 20

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 21

What has to be considered during refueling?

Accepted Answer

No open fires, obey smoking ban and apply ground cables

Answer

Apply ground wires, turn on the main switch and magneto ignition

Answer

Check the fuel content of the tank with a torch and remove fire protection

Answer

Refuel through a soaked rag and keep a fire extinguisher available

Question 22

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 23

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 24

How can the pitch angle on a helicopter's rotor blade be controlled?

Accepted Answer

By control rods

Answer

By electrical impulses

Answer

By electric motors

Answer

By cam rods

Question 25

What is a likely consequence of blocked pitot tube with drain and static ports open?

Accepted Answer

the airspeed indication may decrease towards zero.

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 26

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 27

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 28

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 29

Which statement about a transponder is correct?

Accepted Answer

It replies to secondary surveillance radar interrogations.

Answer

It measures wind direction.

Answer

It stores engine oil.

Answer

It replaces the magnetic compass.

Question 30

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 31

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 32

Which statement about the freewheel unit in a helicopter is correct?

Accepted Answer

It allows the rotor system to continue turning if engine drive is lost.

Answer

It locks the rotor during autorotation.

Answer

It controls the radio frequency selector.

Answer

It prevents collective pitch changes.

Question 33

During a flight in an air mass with a temperature equal to ISA and the QNH set correctly, the indicated altitude is...

Accepted Answer

Equal to the true altitude.

Answer

Lower than the true altitude.

Answer

Higher than the true altitude.

Answer

Equal to the standard atmosphere.

Question 34

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 35

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 36

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 37

The term "inclination" is defined as...

Accepted Answer

Angle between Earth's magnetic field lines and horizontal plane.

Answer

Angle between magnetic and true north.

Answer

Deviation induced by electrical fields.

Answer

Angle between aircraft's longitudinal axis and true north.

Question 38

Which of the stated materials shows the highest strength?

Accepted Answer

Carbon fibre reinforced plastic

Answer

Aluminium

Answer

Magnesium

Answer

Wood

Question 39

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 40

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 41

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

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

Answer

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

Answer

Static air pressure is measured and compared against a vacuum.

Question 42

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 43

What is a likely consequence of magnetic material near the compass?

Accepted Answer

compass deviation may increase.

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 44

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 45

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 46

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 47

What does the dynamic pressure depend directly on?

Accepted Answer

Air density and airflow speed squared

Answer

Lift- and drag coefficient

Answer

Air pressure and air temperature

Answer

Air density and lift coefficient

Question 48

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 49

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 50

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 51

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 52

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 53

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 54

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 55

Which of the following factors could cause an erroneous airspeed indication?

Accepted Answer

The aircraft is covered with adhesive foils

Answer

The boost pressure line is defective

Answer

A circuit breaker was pulled

Answer

The earth wire is still attached

Question 56

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 57

What happens to a helicopter during cruise when the stick is moved forward without other corrections?

Accepted Answer

The speed increases and the sink rate increases

Answer

The speed decreases and the sink rate decreases

Answer

The speed decreases and the sink rate increases

Answer

The speed increases and the sink rate decreases

Question 58

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 59

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 60

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 61

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

Leading the airflow to parts designated to be cooled

Answer

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

Answer

Increasing the airflow thus improving cooling of cylinder parts

Question 62

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 63

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 64

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

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