Statistics for AGK 021 & 022

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General Stats

This quiz has been taken 369 times
The average score is 64 of 159

Answer Stats

Question	Answer	% Correct
In the aircraft tanks, fuel is most likely to be contaminated by water from:	Atmospheric air remaining in the tanks.	71%
The power output of an internal combustion engine can be increased by:	Increasing the engine R.P.M.	63%
The battery master switch should be turned to OFF after the engine is stopped to avoid the battery discharging through the:	Ignition switch.	61%
Oil in a reciprocating engine serves:	For lubricating and cooling of the engine.	59%
Carbon monoxide gas, which is highly toxic, may enter the aeroplane cabin in flight because of an exhaust system defect. Carbon Monoxide:	Is odourless and colourless.	59%
While taxying in an aircraft fitted with a fixed pitch propeller, you suspect that you have carburettor icing. The correct action to take would be to:	Select carburettor heat to fully hot. Then, before take-off, select carburettor heat cold, making sure that the engine develops the correct minimum take-off rpm.	59%
What would be the indication of an aircraft altimeter if the pilot fails to set QNH during descent, and therefore lives the instrument set to the standard pressure?	The airport heigh above the pressure plane 1013.2 hPa.	57%
If a flight is made from an area of high pressure into an area of low pressure without the altimeter setting being adjusted, the aircraft true altitude:	Decreases.	56%
The correct working cycle of a four stroke engine is:	Induction, compression, power, exhaust.	56%
Why do aircraft engine ignition systems incorporate a means of spark augmentation?	Because the speed of rotation of the engine, during starting, is too low for the magneto to produce enough energy to ignite the air-fuel mixture.	55%
To assist in reducing the temperature of the engine:	The air-fuel mixture can be richened.	55%
How soon after starting a cold aircraft engine should the oil pressure gauge give an indication?	Within 30 seconds; otherwise shut down the engine.	55%
On a light aircraft fitted with a mechanically steered nose wheel, steering on the ground is normally effected by:	Control rods/cables operated by the rudder pedals.	54%
A reciprocating aviation engine develops the highest power:	During takeoff with full RPM.	54%
An engine that does not have a carburettor but rather metered fuel that is fed under:	Fuel injection.	54%
Detonation is:	Harmful to the pistons.	54%
Cross checking means:	Monitoring and interpreting two or more instrument displays in order to conclude and maintain aircraft's position	54%
Where, in an aircraft engine fuel system, is the electric fuel-boost pump normally fitted?	At the lowest point of the fuel tank.	52%
Blade angle ____ from the hub to the tip of a propeller blade in order to maintain an optimal ____ from hub to tip.	Decreases, Angle of Attack.	52%
If set to QNH, what will be aircraft altimeter reading after landing?	Airfield height above the mean sea level.	51%
If primary structure breaks during the flight it causes:	An instant accident	51%
When the engine is stopped, the main source of electrical power is the:	Battery.	51%
When an aircraft is in flight, the pressure sensed by the forward facing hole in the pitot tube is:	Dynamic pressure plus static pressure.	51%
On your instrument panel, the suction gauge is showing system failure. However, the gyrodriven instruments appear to be functioning normally, and the Low Vacuum Warning Light is off. Where do you think the problem lies?	In the suction gauge.	51%
What will be the consequence for the validity of an aircraft's arworthiness f the aircraft is not maintained in accordance with the approved maintenance schedule detailed in the Certificate of Airworthiness ( C of A)?	The C of A will be rendered invalid until such time as the required maintenance is completed.	51%
What would be the result of a single magneto failure on an aircraft in cruise flight?	A slight drop in RPM, plus a slight increase in fuel consumption.	50%
A Direction lndicator:	Suffers from apparent drift of the gyro from the fixed position in space to which it was aligned, produced by Earth rotation.	50%
A halon fire extinguisher:	Is quite safe to use in an enclosed cockpit if the cockpit is subsequently ventilated.	49%
Aircraft's primary structures include:	Wing spars, wing skin plateswing and stabilizer attachment fittings.	49%
While carrying out the Dead Cut Check, with the right magneto selected, you notice that the engine falters, and you suspect it will stop running. What should you do?	Allow the engine to stop completely, the fault must be find out before the next flight is conducted.	48%
It is possible to get carburettor icing when the relative humidity is unknown within a temperature range of:	At any temperature.	48%
Transition level is:	Flight level where pilot changes to QNH setting	48%
In what flight condition is a torque effect the greatest in a single-engine airplane?	Low airspeed, high power, high angle of attack.	48%
Carburetor heat of a piston engine:	Increases significantly fuel consumption	46%
What would be the most likely cause of fluctuating oil pressure in an aircraft engine?	Low oil level.	46%
Pitot static tube measures:	Total pressure	46%
What causes the true airspeed of an airplane to differ from its indicated airspeed?	Variations in temperature and air density.	46%
An accelerator pump is used to prevent a "flat spot". A "flat spot" is:	When the throttle is opened quickly and the demand for fuel cannot be met immediately.	46%
A 100 Ampere-Hour battery:	Will, in theory, supply 20 Amps for up to 5 hours.	46%
In fuel sample water appears as:	Bubbles at the bottom of the sample	45%
If a pilot changes the altimeter setting to a lower pressure, the altitude indication will:	Decrease.	45%
White color in air speed indicator means:	Operating range for flaps	45%
Magnetos are:	Self-contained, engine driven, electrical generators which produce high voltage sparks.	45%
One purpose of the dual ignition system on an aircraft engine is to provide for:	Improved engine efficiency = improved performance.	44%
In a dive, with the throttle setting constant, the engine R.P.M. of an aircraft fitted with a fixed pitch propeller will:	Increase if the airspeed is allowed to increase.	44%
The purpose of the compass deviation card fixed next to an aircraft's magnetic compass is to:	Indicate the discrepancy between the heading shown on the compass and the actual magnetic heading.	44%
The diagram shows a light aircraft electrical power system, which employs a centre-zero reading ammeter. (See LAPL/PPL 020-03). In flight with the battery fully charged and the battery switch ON, you would expect the ammeter to be:	In the centre-zero position.	44%
If the power supply to the pitot heater failed during flight in icing conditions and the aircraft subsequently descended, the readings on the Altimeter/the VSI/the ASI would, if ice had blocked the pitot (Total Pressure) tube:	Read Correctly / Read Correctly / Untrustworthy.	44%
Which of the following is an appropriate action to take if you have a carburettor fire on startup?	Select mixture control to Idle Cut Off (ICO).	44%
It is best to run the engine with the mixture:	Slightly rich, as the remaining fuel helps cool the engine.	44%
Besides the altimeter, which instruments are connected to the static pressure line?	Airspeed indicator and vertical speed indicator.	43%
Choose the correct statement concerning the colour markings of air speed indicator:	Green = normal opertating range	43%
Ignoring any Instrument or Position Errors, in what conditions will the Air Speed Indicator indicate the True Airspeed of an aircraft?	In ISA, sea-level conditions only.	43%
If an aircraft is equipped with a fixed-pitch propeller and a float-type carburettor, the first indication of carburettor ice would most likely be:	Loss of RPM.	43%
Carburettor ice has formed in the venturi of your carburettor and your aircraft starts losing power. Will the use of carburettor heat result in immediate increase in RPM?	No, in a fixed-pitch propeller aircraft there will first be some rough running and a further loss of RPM as the melted ice is ingested by the engine. Then RPM will increase.	43%
What does the green color band on the airspeed indicator of an aircraft indicate?	Normal operating speed range.	43%
After starting a cold engine, if the oil pressure gauge does not indicate within approximately 30 seconds:	The engine must be stopped immediately.	43%
Pre-ignition in a four stroke piston engine is:	The fuel-air mixture burning earlier than plug sparkles.	43%
When set to QFE pressure, an altimeter will indicate the:	Height above the airfield.	41%
Pre-ignition:	Is usually caused by a hot spot in the combustion chamber.	41%
lt is important to ensure the priming pump is locked after use because:	It may cause fuel to be sucked from the fuel strainer into the inlet manifold, causing an extremely rich mixture.	41%
What is the purpose of an auxiliary fuel boost pump installed in some light aircraft?	Providing fuel to the carburettor during start-up and supplying fuel if the engine driven fuel pump fails.	41%
1 hPa in altimeter setting is:	27ft	40%
The main advantage of an alternator over a generator is that:	An alternator will give almost full power at engine idling speed.	40%
Directional gyroscope is set in right position in nose wheel aircrafts:	Before departure in ground when the aircraft stays still	40%
In the event of an alternator or generator failure during flight the:	Electrical loads should be reduced to a minimum and a landing made as soon as safely practicable.	40%
As air enters the restriction of a Venturi, velocity ____ , static or ambient pressure ____ and temperature ____ .	Increases / Decreases / Decreases	40%
A propeller blade is twisted along its length in order to:	Maintain the optimal Angle of Attack from root to tip.	40%
The maximum speed for flaps extension:	Must refer to manual.	40%
The prevention of excessive oil pressure in an aircraft engine is assured by:	The engine's oil pressure relief valve.	40%
The red line on an airspeed indicator of a sport aircraft represents:	The speed which must not be exceeded any time.	40%
Semi-monocoque can be defined as:	A stressed skin with supported apertures containing an internal structure framework.	39%
The crankshaft in a piston engine:	Converts reciprocating movement into rotary motion.	39%
Which of the following will increase the angle of attack of a fixed pitch propeller blade?	Decreased TAS and increased RPM.	39%
To which source of electrical power is the starter of an aircraft engine connected to?	Directly to the battery.	39%
If a fire occurs in a wheel and tyre assembly and immediate action is required to extinguish it, the safest extinguishant to use is:	Dry powder.	39%
The octane number of the fuel means:	Fuel's ability to tolerate detonation	39%
What height does the altimeter indicate if set to local QNH?	Height above sea level.	39%
The piston rod in a reciprocating engine forms a link between:	The cylinder piston and the crankshaft.	39%
Theoretically, a 100Ah battery will supply 25A for:	4 hours.	38%
Where in the engine is the oil temperature read by the temperature probe which is connected to the engine's oil temperature gauge?	After the oil has passed through the oil cooler but before it reaches the hot sections of the engine.	38%
A carburettor is used to supply:	A fuel/air mixture to the engine cylinders.	38%
The most probable cause of the needle of the oil pressure gauge fluctuating when the aircraft is in level flight with the engine running at cruise rpm is:	A low oil supply	38%
For exciting of the alternator an initial electrical current is needed, provided by the:	Battery.	38%
An altimeter:	Contains an aneroid capsule connected to a static pressure source. The capsule contracts during a descent.	38%
Which altitudes indicates an aircraft altimeter if set to standard atmospheric pressure?	Flight levels.	38%
The significance of using the chemically correct mixture of air and fuel is that:	It allows complete combustion to occur.	38%
During one complete Otto Cycle, the piston:	Moves towards the cylinder head twice.	38%
To work at its highest efficiency, the engine:	Needs to be at the highest temperature consistent with safe operation.	38%
If you suspect carburettor icing when flying an aircraft whose engine is not fitted with a carburettor air-temperature gauge, the correct action would be:	To always select full carburettor heat.	38%
Why do high compression engines require fuels of a higher grade?	To avoid detonation and resulting destruction of the engine.	38%
What is the function of a shimmy dumper on an aircraft undercarriage?	To prevent nose wheel vibrations.	38%
Which adverse effect, caused by a gyroscopic effect, will a pilot experience during the takeoff roll while lifting a tail off the ground?	Banking tendency.	37%
Tyre creep:	Can be recognised by the misalignment of markings painted on the tyre and the wheel.	37%
The exhaust gas temperature gauge:	Can indicate whether the air-fuel mixture being drawn into the combustion chamber is too lean or too rich.	37%
Aircraft maintenance carried out by a private pilot in accordance with the pilot's legal entitlement:	Is to be entered in the aircraft's log book and certified by the pilot who carried out the maintenance.	37%
How much maintenance cycle can be exceeded?	Max. 10%	37%
Flying an aircraft with a flat battery, having started the engine using a ground source, is:	Not recommended because the battery may not charge correctly during flight.	37%
If a blockage occurs in the oil cooler of an aircraft engine while the aircraft is in flight, a by-pass valve allows the oil to by-pass the cooler. The by-pass functions on the principle of:	Pressure dependence.	37%
The principal reason why light training aircraft have fixed undercarriages is that:	The reduced performance caused by the additional drag of a fixed undercarriage is offset by its simplicity, low cost and easy maintenance.	37%
The Mechanical Tachometer:	Works on the principle of a magnetic field being induced in a drag cup and creating a torque which rotates a shaft attached to the pointer on the dial of a Tachometer.	37%
If an altimeter is set to QFE pressure, the instrument indication after landing will be:	Zero.	37%
Annual inspection is done:	After every 12 months	35%
ISA conditions at mean sea level:	Air density 1225g/m3 ja air temperature drops 6,5°C/km	35%
Which instrument(s) is(are) connected to the total pressure?	Airspeed indicator only.	35%
Baffles:	Are directional air guides which direct the airflow fully around the cylinder.	35%
Which of the following is not a component of a dry vacuum system?	A system lubrication device.	35%
A flying control lock:	Is used to lock the controls on the ground to prevent damage in high wind conditions.	35%
Which is an important airspeed limitation that is not color coded on airspeed indicators on any one aircraft or glider?	Maneuvering speed (VA).	35%
In icing conditions, if a static vent became blocked during level flight and the aircraft subsequently climbed, the readings on the Altimeter/the VSI/the ASI would:	Remain unchanged / Remain unchanged / Under-read	35%
An abnormally high oil temperature indication in case of a four-stroke engine may be caused by:	The oil level being too low.	35%
Detonation could result from using:	Too weak a mixture.	35%
Which instruments are usually powered by a vacuum pump system? (1) Direction Indicator (2) Turn Coordinator (3) Attitude Indicator (4) Altimeter (5) Magnetic Compass.	(1) and (3).	34%
What does the red line on an aviation instrument generally represent?	Maximal or minimal allowed value.	34%
Can the alternator of an aircraft engine operate without the battery?	No, not in any case.	34%
Most nose wheels on modern light aircraft are:	Oleo pneumatic shock-absorber struts.	34%
What part in a reciprocating four-stroke engine operates the piston valves?	The camshaft.	34%
What part(s) of a reciprocating aircraft engine seal(s) the combustion chamber?	The cylinder rings and valves.	34%
What change occurs in the fuel/air mixture when carburettor heat is applied?	The fuel/air mixture becomes richer.	34%
Engine compression ratio is the ratio of the:	Total volume to the clearance volume.	34%
When referring to the magnetic compass, pilots must bear in mind that:	Turning errors are maximum when turning through North and South, and minimum when turning through East and West.	34%
Can an engine of a parked modern reciprocating aircraft fire if somebody turns the propeller by hand?	Yes, provided the master switch is on or ignition is faulty.	34%
On a fixed pitch propeller aircraft whose engine is fitted with a carburettor, the first signs of induction system icing are:	A gradual drop in rpm and possible rough running and vibration.	33%
Tyre creep may be identified by:	Alignment marks painted on the tyre sidewall and wheel flange.	33%
The diagram shows a light aircraft electrical power system (See LAPL/PPL 020- 01). In flight if the loadmeter reading drops to zero, the most probable cause is that the:	Alternator has failed.	33%
Aquaplaning speed:	Can be calculated, in knots, by multiplying the square root of the tyre pressure by nine.	33%
The power output of a four-stroke piston engine at sea level:	Increases as rpm increases.	33%
The purpose of fins around the cylinder of a reciprocating air-cooled aircraft engine is:	Increase the cooling area and better cylinder cooling.	33%
The cylinder head temperature gauge:	Obtains its temperature information from the hottest engine cylinder, by means of a probe consisting of two dissimilar metals joined together.	33%
When a compass swing is being carried out:	The aircraft's heading compass reading is compared with readings from a 'land or datum' compass.	33%
Connecting two 12 volt, 40 ampere-hour, capacity batteries in series will provide a battery of:	24 volts and 40 ampere-hours capacity.	32%
The most common method for shutting down an aircraft engine equipped with carburettor is:	Closing the throttle and moving the mixture to ICO.	32%
If a fuse blows during flight it:	May be replaced in the air once only, by one of the same value.	32%
Within one "Otto" cycle, the valves of a four stroke piston engine will open:	Once.	32%
On a reciprocating aviation engine, what is controlled by the exhaust temperature gauge (EGT)?	Quality of the fuel/air mixture.	32%
If the gyro of a turn indicator runs at a lower RPM than its design specification, how will the actual rate of turn of the aircraft compare to the rate of turn shown on the turn indicator?	The actual rate of turn of the aircraft will be greater than the rate indicated.	32%
As an aircraft with a variable-pitch, constant-speed propeller accelerates along the runway:	The blade pitch angle increases, maintaining a constant angle of attack and R.P.M.	32%
While cruising at 9,500 feet MSL, the fuel/air mixture is properly adjusted. What will occur if a descent to 4,500 feet MSL is made without readjusting the mixture?	The fuel/air mixture may become excessively lean.	32%
If the engine gets too hot, the mixture may ignite before the spark plug fires.	This is called pre-ignition.	32%
The component parts of the wing shown in the diagram are: (See LAPL/PPL 020- 02) A/B/C	Front Spar/Formers/Rear Spar	30%
Instruments normally supplied from the electrical system include the:	Fuel quantity gauges and the turn co-ordinator.	30%
The barometric pressure scale on an aircraft altimeter serves for:	Setting of pressure value at the pressure level, from which will the altimeter measure altitudes.	30%
If, while an aircraft is descending, the static vent leading to the Vertical Speed Indicator becomes blocked, the indicator will:	Show a zero reading, after a short delay.	30%
Immediately after starting an aircraft engine, you must check the starter warning light. If it is still illuminated you should:	Shut down the engine immediately.	30%
For internal cooling, a reciprocating aircraft engine especially depends on:	The circulation of lubricating oil.	30%
As the throttle is advanced, what happens to the constant-speed propeller of an aircraft?	Angle of attack will increase.	29%
Density altitude is	A value that is used to measure engine's performance	29%
If, during descent, the static sources to the airspeed indicator and altimeter become blocked by ice:	Both instruments will over-read.	29%
The distributor arm rotates at:	A half engine speed.	28%
A Direction Indicator may be aligned with the magnetic compass:	By using the caging knob to rotate the Dl azimuth card when the wings are level.	28%
The operating principle of float-type carburettors is based on the:	Difference in air pressure at the venturi throat and the air inlet.	28%
A magnetic heading:	Is the sum of the compass heading and compass deviation.	28%
The gyro in an artificial horizon is:	An earth gyro rotating in a horizontal plane about a vertical axis.	26%
The basic purpose of adjusting the fuel/air mixture at altitude is to:	Decrease the fuel flow in order to compensate for decreased air density.	26%
The temperature of the gases within the cylinder of a four stroke engine during the power stroke will:	Decrease.	24%
As you climb altitude ____ and density ____ and, therefore, the mixture will be____.	Increases/Decreases/Increases.	24%
The power of an aviation engine without a supercharger decreases with altitude because of:	Lower air density and therefore insufficient cylinder loading.	23%
Some carburettors are fitted with a diffuser which:	Prevents the mixture becoming too rich as the rpm increases.	23%
When enriching the mixture:	Power is increased	16%