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

Question 1

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 2

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

Accepted Answer

Deviation.

Answer

Declination.

Answer

Inclination.

Answer

Variation.

Question 3

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 4

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 5

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 6

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 7

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 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

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 10

Which colour does Avgas 100 LL have?

Accepted Answer

Blue

Answer

Yellow

Answer

Green

Answer

Red

Question 11

What is the advantage of a hingeless rotor?

Accepted Answer

Few components are necessary

Answer

Good autorotation characteristics

Answer

Excellent blade tracking

Answer

Better lift distribution

Question 12

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 13

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 14

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 15

Which statement about the cyclic control is correct?

Accepted Answer

It changes rotor disc attitude by varying blade pitch cyclically.

Answer

It changes all blades equally at the same time.

Answer

It is used only to start the engine.

Answer

It controls cabin heating only.

Question 16

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 17

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

Accepted Answer

The directional gyro and the VHF navigation receiver.

Answer

The attitude indicator and the flight director.

Answer

The rate gyro and the slip indicator.

Answer

The directional gyro and the flight director.

Question 18

A flight level is a...

Accepted Answer

Pressure altitude.

Answer

True altitude.

Answer

Altitude above ground.

Answer

Density altitude.

Question 19

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 20

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 21

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 22

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 23

What does the octane rating or fuel grade describe?

Accepted Answer

Anti-knock rating

Answer

Flame front speed

Answer

Combustion temperature

Answer

Ignition timing

Question 24

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 25

Which method of measurement is mostly used for the fuel supply indication on helicopters?

Accepted Answer

Capacitive measurement

Answer

Dipstick measurement

Answer

Flow measurement

Answer

Inductive measurement

Question 26

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 27

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 28

Which rotor blade material enables the construction of hingeless rotor heads?

Accepted Answer

Plastic

Answer

Aluminium

Answer

Titan

Answer

Timber

Question 29

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 30

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

Accepted Answer

Yellow

Answer

White

Answer

Red

Answer

Green

Question 31

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 32

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 33

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 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

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 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

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 38

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 39

What is the reason for a puddle of water below the helicopter after a flight in summer?

Accepted Answer

The air conditioning was used in flight

Answer

The windshield wiper fluid has leaked

Answer

The helicopter was frozen at cruising altitude

Answer

Vapour bubbles from the fuel lines are condensed

Question 40

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 41

Why is the main rotor gearbox a limiting factor in most piston-driven helicopters?

Accepted Answer

The gear wheels will be displaced from each other at high torque and strain the gearbox bearings

Answer

The electronic monitoring of the gearbox reacts susceptible at high torques

Answer

The drive shaft in the gearbox is made of solid material and tends to break at high torques

Answer

The supply of oil pressure lubrication in the gearbox is constructed on average loads

Question 42

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 43

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 44

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 45

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 46

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 47

Piston engines of helicopters have...

Accepted Answer

Two independent ignition systems.

Answer

One magneto ignition system.

Answer

Two coupled ignition systems.

Answer

One electrical ignition system.

Question 48

What is the unit for electrical power?

Accepted Answer

Watt

Answer

Ampere

Answer

Volt

Answer

Ohm

Question 49

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 50

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 51

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 52

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 53

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 54

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 55

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 56

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 57

Which components do rotor blades made of metal contain?

Accepted Answer

Spar of steel, filling material of aluminum, and outer skin of aluminum

Answer

Spar of titan, filling material of stainless steel, and outer skin of steel

Answer

Spar of lead, filling material of steel, and outer skin of stainless steel

Answer

Spar of aluminum, filling material of titan, and outer skin of aluminum

Question 58

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 59

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 60

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 61

Which statement about the tail rotor is correct?

Accepted Answer

It provides anti-torque control and yaw control.

Answer

It produces all vertical lift.

Answer

It drives the main gearbox oil pump.

Answer

It replaces the cyclic control.

Question 62

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 63

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 64

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.

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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