A lower limit of a Control Area shall be established at a height above the ground level or water of not less than:

The crank assembly consists of

Ignition systems of piston engines are :

The purpose of the proximity of the emergency evacuation path marking system is to :

A unit that converts electrical DC into AC is :

In a four-stroke piston engine, the only "driving" stroke is :

On four-stroke piston engines, the theoretical valve and ignition settings are readjusted in order to increase the:

Low oil pressure is sometimes the result of a

The reason for the fact that an aeroplane designed for long distances cannot simply be used for short haul flights at higher frequencies is that

In modern aircraft, a pilot can actuate the feather system by :

An impulse coupling used on a magneto for a piston engine is for

A manual inflation handle:

On-board electrical systems are protected against faults of the following type: 1. AC generator over- voltage 2. AC generator under- voltage 3. over-current 4. over-speed 5. under-frequency 6. undue vibration of AC generators The combination of correct statements is :

The difference between (1) a fuse and (2) a circuit breaker is:

The power output of a normally aspirated piston engine increases with increasing altitude at constant Manifold Air Pressure (MAP) and RPM because of the :

In twin-engine aeroplanes with right turning propellers

An asymmetric loading (p-factor) on the propeller exists ..

The "slipstream effect" of a propeller is most prominent at:

What will happen to the geometrical pitch angle of a "constant speed propeller" if the manifold pressure is increased ?

The "constant speed propeller" has

Which of the following qualitative statements about a fixed propeller optimized for cruise condition, is true for the take-off case? The angle of attack of the propeller :

The conditions which can cause knocking are :

During climb with constant throttle and RPM lever setting (mixture being constant) the :

An EGT (Exhaust Gas Temperature) indicator for a piston engine is used to :

With which instrument(s) do you monitor the power output of an aeroplane fitted with a fixed pitch propeller?

One of the advantages of a turbosupercharger is that :

What can be the consequence during a descent with a fully open throttle if the waste gate is seized ?

During climb with constant Manifold Air Pressure (MAP) and RPM indication and constant mixture setting, the power output of a piston engine :

In general, in twin- engine aeroplanes with "constant speed propeller"

The conditions under which you obtain the highest engine power are :

The power of a piston engine decreases during climb with a constant power lever setting, because of the decreasing :

The torque of an aeroplane engine can be measured at the: propeller.

The power of a piston engine which will be measured by using a friction brake is :

The power output of a piston engine can be calculated by :

The ignition occurs in each cylinder of an four- stroke engine (TDC = Top Dead Center)

The useful work area in an ideal Otto engine indicator diagram is enclosed by the following gas state change lines

The number of emergency exits in transport aeroplanes

The kind of compressor normally used as a supercharger is :

If a current is passed through a conductor which is positioned in a magnetic field :

The capacity of a battery is expressed in terms of :

A test to assess the state of charge of a lead-acid battery would involve :

When an "open circuit" occurs in an electrical supply system, the

When two DC generators are operating in parallel, control of load sharing is achieved by :

In a two generator system, a differential relay will ensure that :

The very rapid magnetic field changes (flux) around the primary coil in a magneto are accomplished by the:

The compression ratio of a piston engine is the ratio of the: that with the piston at top dead centre.

Prolonged running at low rpm may have an adverse effect on the efficiency of the:

The purpose of the venturi in a carburettor is to:

An aircraft electrical circuit which uses the aircraft structure as a return path to earth, may be defined as a

The purpose of a distributor in an ignition system is to distribute:

The reading on the oil pressure gauge is the:

A turbocharger system is normally driven by:

A turbocharger consists of a :

The mixture control for a carburettor achieves its control by:

In an aircraft equipped with a DC main power system, AC for instrument operation may be obtained from :

The true statement among the following in relation to the application of Ohm"s law is :

When a battery is almost fully discharged there is a tendency for the :

Immediately after starting engine(s) with no other electrical services switched on, an ammeter showing a high charge rate to the battery :

Circuit breakers protecting circuits may be :

A "trip-free" type circuit breaker is a circuit protection device which :

Connecting two 12 volt 40 ampere-hour capacity batteries in series will result in a total voltage and capacity respectively of :

A bus-bar is :

When carrying out battery condition check using the aircraft"s voltmeter :

When a conductor cuts the flux of a magnetic field :

In order that DC generators will achieve equal load sharing when operating in parallel, it is necessary to ensure that :

A circuit breaker :

A current limiter fuse in a DC generation system is used to :

The primary purpose of bonding the metallic parts of an aircraft is to :

If the ground wire between the magneto and the ignition switch becomes disconnected, the most noticeable result will be that the engine

If an engine fails to stop with the magneto switch in OFF position, the cause may be :

An impulse magneto coupling

A condenser in parallel with breaker points will coil

Spark timing is related to engine speed in the way that the:

An aircraft magneto is switched off by

With respect to a piston engined aircraft, ice in the carburettor :

When leaning the mixture for the most economic cruise fuel flow, excessive leaning will cause :

The oil system for a piston engine incorporates an oil cooler that is fitted :

An exit is considered to be out of service when the following elements are inoperative the: 1. external door opening mechanism 2. internal door opening mechanism 3. door opening aid device 4. open door locking system 5. auxiliary means of evacuation 6. emergency lighting The combination regrouping all the correct statements is:

To ensure that the fuel flow is kept directly proportional to the volume of air flowing through the choke, thus preventing the main jet supplying excessive fuel as engine speed is increased, a carburettor is fitted with :

In a piston engine if the ratio of air to fuel, by weight, is approximately 9:1, the mixture is said to be :

Which of the following factors would be likely to increase the possibility of detonation occurring within a piston engine ?

The part of a piston engine that transforms reciprocating movement into rotary motion is termed the :

In a piston engine, the purpose of an altitude mixture control is to :

In addition to the fire hazard introduced, excessive priming should be avoided because :

The primary purpose of a supercharger is to :

An excessively rich mixture can be detected by :

A piston engine compression ratio is the ratio of the :

Pre-ignition refers to the condition that may arise when :

Overheating of a piston engine is likely to result from an excessively :

The maximum horsepower output which can be obtained from an engine when it is operated at specified rpm and manifold pressure conditons established as safe for continuous operation is termed :

A fuel strainer when fitted to a carburettor will be positioned :

Specific fuel consumption is defined as the :

The octane rating of a fuel and compression ratio of a piston engine have which of the following relations?

The purpose of an ignition switch is to :

Under normal running conditions a magneto draws primary current :

On a normally aspirated aero-engine fitted with a fixed pitch propeller : the throttle.

The air in a piston engine turbo- supercharger centrifugal compressor :

In a piston engine, turbocharger boost pressure may be monitored by :

The working cycle of a four-stroke engine is :

If the ground wire between the magnetos and the ignition switch becomes disconnected the most noticeable result will be that:

Fuel stored in aircraft tanks will accumulate moisture. The most practical way to minimize this when an aircraft is used every day or so is to :

Fixed-pitch propellers are usually designed for maximum efficiency at :

Vapour lock is :

For internal cooling,reciprocating engines are especially dependent on:

The positions of the intake and exhaust valve at the end of the power stroke are :

The main purpose of the mixture control is to:

In which sections of the carburettor would icing most likely occur?

The operating principle of float-type carburettors is based on the:

In an engine equipped with a float-type carburettor, the low temperature that causes carburettor ice is normally the result of:

Fuel/air ratio is the ratio between the:

Which statement is true concerning the effect of the application of carburettor heat?

In a generator, the Constant Speed Drive (CSD): 1- may be disconnected from the engine shaft. 2- may be disconnected from the generator. 3- is a hydro- mechanical system. 4- is an electronic system. 5- may not be disconnected in flight. 6- may be disconnected in flight. The combination regrouping all the correct statements is :

A static inverter is a:

The correct formula to calculate the multi- cylinder engine displacement is :

In most cases aeroplane piston engines are short stroke engines. This permits a :

When changing power on engines equipped with constant-speed propeller, engine overload is avoided by :

The pitch angle of a constant-speed propeller

A propeller blade is twisted, so as to

A pilot normally uses the propeller autofeather system during :

When increasing true airspeed with a constant engine RPM, the angle of attack of a fixed pitch propeller :

The feathering pump of a hydraulic variable- pitch propeller: inoperative.

To unfeather a propeller during flight you have to :

If one of the 12 cells of a lead-acid battery is dead, the battery:

When TAS increases, the pitch angle of a constant speed propeller (RPM and MAP levers are not moved) :

Electrical bonding of an aircraft is used to: 1. protect the aircraft against lightning effects. 2. reset the electrostatic potential of the aircraft to a value approximating 0 volt 3. reduce radio interference on radiocommunication systems 4. set the aircraft to a single potential The combination regrouping all the correct statements is: 5 FRANCE The Low Altitude Radio decimetric. metric. centimetric. myriametric. 0 0 -1 0 Altimeter uses the following wavelengths: 5 FRANCE The Automatic decimetric. centimetric. hectometric or metric. 0 0 -1 0 the following wavelengths: 2 FRANCE A thermal circuit forbids any overcurrent. can be reset without protects the system in is a protection system 0 0 -1 0 6 FRANCE On an airplane, the leading edge flaps leading edge flaps trailing edge flaps close trailing edge flaps close 0 -1 0 0

The fuselage of an aircraft consists, among others, of stringers whose purpose is to: stress.

For a given type of oil, the oil viscosity depends on the:

In case of engine failure during flight the blades of the constant speed propeller in a single engine aeroplane, not fitted with feathering system 1 GERMANY For take-off, the correct (1) high (2) forward. (1) low (2) forward. (1) low (2) aft. (1) high (2) aft. 0 -1 0 0 combination of propeller pitch (1), and propeller lever position (2) at brake release is :

For piston engines, mixture ratio is the ratio between the :

On modern carburettors, the variations of mixture ratios are obtained by the adjustment of :

To adjust the mixture ratio of a piston engine when altitude increases, means to:

When applying carburettor heating :

When the pilot moves the mixture lever of a piston engine towards a lean position the :

When altitude increases without adjustment of the mixture ratio, the piston engine performance is affected because of a :

Max. Exhaust Gas Temperature is theoretically associated with :

The advantages of grounding the negative pole of the aircraft structure are: 1. Weight saving 2. Easy fault detection 3. Increase of short- circuit risk 4. Reduction of short- circuit risk 5. Circuits are not single-wired lines The combination regrouping all the correct statements is :

The main advantage of a constant speed propeller as compared to a fixed pitch propeller is a :

A rich mixture setting has to be used during climb segments. This results in a

For FAIL-SAFE designed structural parts : 1 The mounting principle is parallel mounting. 2 No routine check is necessary. 3 The member is removed at the end of the calculated life cycle. 4 Certain components may not be accessible. 5 The principle is the redundancy of components 6 The failure of a member causes the loads to be shared between the other system components. The combination regrouping all the correct statements is :

DURALUMIN alloys : 1 have an aluminium- copper base. 2 have an aluminium- magnesium base. 3 are easy to weld. 4 are difficult to weld. 5 have a good thermal conductivity. 6 have a poor air corrosion resistance The combination regrouping all the correct statements is :

Some emergency exits must be equipped with devices so as to help the occupants to get out and reach the ground if their threshold is at a height above the ground greater than:

The pitch angle of a

The frequency of the current provided by an alternator depends on...

On a a normally aspirated engine (non turbo-charged), the manifold pressure gauge always indicates...

When the magneto selector switch is set to "OFF" position, the piston engine continues to run normally. The most probable cause of this failure is that:

During a power change on an engine equipped with a constant speed propeller, a wrong combination of manifold pressure and RPM values results in excessive pressures in the cylinders. This is the case when one simultaneously selects a ...

When in flight, a piston engine is stopped and the propeller blade pitch angle is near 90�? , the propeller is said to be...

The resistors R1 and R2 are connected in parallel. The value of the equivalent resistance (Req) so obtained is given by the following formula:

The function of the Generator Breaker is to close when the voltage of the :

Evacuation slide inflation is ensured by :

In a piston engine, magnetos are used to produce the spark which ignites the fuel/air mixture. The operating principle of magnetos consists in :

Vapor lock is the phenomenon by which:

Spark plug fouling is more likely to happen if : too long.

Static dischargers : 1. are used to set all the parts of the airframe to the same electrical potential 2. are placed on wing and tail tips to facilitate electrical discharge 3. are used to reset the electrostatic potential of the aircraft to a value approximating 0 volts 4. are located on wing and tail tips to reduce intererence with the on- board radiocommunication systems to a minimum 5. limit the risks of transfer of electrical charges between the aircraft and the electrified clouds The combination regrouping all the correct statements is :

The octane rating of a fuel characterises the :

"Fail safe construction" is : components if a part of the structure fails.

The reason for using inverters in an electrical system is ..

In aeronautics, the most commonly used batteries are NiCd because...

The essential difference between aircraft AC alternators and DC generators (dynamos) is that the: inductor (field) coil.

In an alternator rotor coil you can find :

Fuses are rated to a value by :

Consider the variable- pitch propeller of a turbo-prop. During deceleration : engine power.

Among the different types of aircraft structures, the shell structures efficiently transmit the: 1. normal bending stresses 2. tangent bending stresses 3. torsional moment 4. shear stresses The combination regrouping all the correct statements is :

The purpose of static wick dischargers is to : interference as a result of static electricity.

The type of windings commonly used in DC starter motors are :

The output of a generator is controlled by :

The detection of a feeder fault on a direct current circuit results in: 1. automatic disconnection of the generator from the aircraft AC busbar 2. opening of generator field current relay 3. opening of the main relay of the generator breaker 4. opening of balancing circuit connecting two generators 5. lighting of an indicator lamp The combination of correct statements is:

A feeder fault on a direct current circuit results from a flux unbalance between the:

A DC generator fitted to a aircraft is cooled by :

On board present aircraft, the batteries used are mainly Cadmium-Nickel. Their advantages are: 1. low risk of thermal runaway 2. high internal resistance, hence higher power 3. good charging and discharging capability at high rating 4. wider permissible temperature range 5. good storage capability 6. sturdiness owing to its metal casing 7. the electrolyte density remains unchanged during charging. The combination of correct statement is:

The richness of a fuel/air mixture ratio is the :

The voltage regulator of a DC generator is connected in :

Assume a constant speed DC generator providing a constant output voltage. If the electrical load increases, the voltage regulator will :

The so-called "hot buses" or "direct buses" are: