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

Question 1

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 2

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 3

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 4

Which statement about rubber fuel hoses is correct?

Accepted Answer

ageing, cracks and leaks must be considered during inspection.

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 5

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 6

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 7

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 8

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 9

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

Accepted Answer

Traction and bending forces.

Answer

Torsions.

Answer

Torques.

Answer

Contact pressure.

Question 10

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 11

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 12

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 13

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 14

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 15

How do you call fuel mixtures with a high amount of fuel?

Accepted Answer

Rich

Answer

Empty

Answer

Full

Answer

Lean

Question 16

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 17

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 18

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 19

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 20

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 21

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 22

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 23

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 24

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 25

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 26

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 27

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 28

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 29

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 30

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 31

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

Accepted Answer

Main rotor gearbox.

Answer

Additional aggregate.

Answer

Engine.

Answer

Alternator.

Question 32

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 33

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 34

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 35

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 36

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 37

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 38

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 39

A vertical speed indicator measures the difference between...

Accepted Answer

Instantaneous static pressure and previous static pressure.

Answer

Instantaneous total pressure and previous total pressure.

Answer

Total pressure and static pressure.

Answer

Dynamic pressure and total pressure.

Question 40

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 41

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 42

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 43

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 44

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 45

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 46

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 47

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 48

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 49

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 50

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 51

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 52

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 53

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 54

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 55

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 56

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 57

An aircraft in the northern hemisphere intends to turn on the shortest way from a heading of 030° to a heading of 180°. At approximately which indicated magnetic heading should the turn be terminated?

Accepted Answer

210°.

Answer

150°.

Answer

360°.

Answer

180°.

Question 58

A flight level is a...

Accepted Answer

Pressure altitude.

Answer

True altitude.

Answer

Altitude above ground.

Answer

Density altitude.

Question 59

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 60

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 61

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 62

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 63

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 64

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.

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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