Instrumentation | PPL(A) Aircraft General Knowledge - EASA & UK CAA
Earth's magnetic field
Section titled "Earth's magnetic field"The angle between the true north and the magnetic north is the:
At the magnetic poles the dip is:
What is the definition of magnetic dip?
Directional gyroscope
Section titled "Directional gyroscope"Transport wander of the directional gyro indicator will occur when:
The apparent earth rate of the directional gyro indicator is maximum at:
Turn and bank indicator
Section titled "Turn and bank indicator"When the aircraft is in a rate one turn, to complete a 270° turn, takes:
Which instrument indicates the angular velocity around the vertical axis?
If the slip indicator ball is displaced left from the centre in a turn to the left, in order to coordinate the turn the pilot should:
The standard rate of turn is:
Transmission modes: HF, VHF and SATCOM
Section titled "Transmission modes: HF, VHF and SATCOM"What is the primary purpose of SATCOM (Satellite Communication)?
Which of the following statements about VHF communication is correct?
The airband frequency range (for communication and navigation) is:
What frequency range do aircraft communication radios operate on?
__(1)__ is used for long-range communication over oceanic regions, because __(2)__.
Temperature Sensing
Section titled "Temperature Sensing"What is the cylinder head temperature measured with?
Tachometer
Section titled "Tachometer"What is the advantage of a mechanical tachometer over an electrical tachometer?
Stall warning
Section titled "Stall warning"The stall warning horn starts to indicate a certain:
Attitude indicator
Section titled "Attitude indicator"The gyroscope of the attitude indicator can freely rotate around:
Direct reading magnetic compass
Section titled "Direct reading magnetic compass"Which of the following factors can cause a gyroscope to drift?
What instrument can be used to align the directional gyro indicator?
What is a gyroscope?
The error caused by the iron and steel parts of the aircraft in the magnetic compass is called:
A freely suspended spinning gyro has a tendency to:
Which of the following instruments use gyroscopes? 1. Magnetic compass 2. Directional gyro indicator 3. Turn and slip indicator 4. Attitude indicator
When an aircraft, which is located at the southern hemisphere accelerates in northerly direction:
Consider an aircraft landing in a south-east direction in the northern hemisphere, the compass will indicate:
Turning error is greatest when turning through:
The fundamental properties of a gyroscope are: 1. rigidity in space 2. rigidity on earth 3. precession 4. low inertia 5. pendular movement
Apparent drift of a gyroscope is influenced by the rotation of the Earth. The apparent drift in most noticeable at (1)__, while it is minimal at (2)__.
What is 'gyroscopic drift'?
What component of the gyroscope maintains its orientation during motion?
A pilot in the northern hemisphere from 90° magnetic heading wants to turn to 180°.
The angular momentum of a gyroscope increases when:
If the aircraft is located in the northern hemisphere and is accelerating on a westerly heading the compass will show:
Precession is defined as:
During a turn through north at the northern hemisphere the compass will:
Air speed indicator
Section titled "Air speed indicator"The true airspeed during a climb with constant indicated airspeed:
In what condition will the calibrated airspeed be equal to the true airspeed?
What are the limits of the green arc on the airspeed indicator?
When can VNE be exceeded?
If we correct indicated airspeed with position and instrument error we get:
If we correct equivalent aispeed with the density error we get:
The limits of white arc of the airspeed indicator are:
If the static port becomes clogged during descent, the airspeed indicator will:
Pressure Measurement
Section titled "Pressure Measurement"Which of the following instruments uses static pressure as an input? 1. Airspeed indicator 2. Vertical speed indicator 3. Directional gyro indicator 4. Altimeter
Both, pitot pressure and static pressure are required for...
Which of the following formulas is correct?
The dynamic pressure:
Pressure Gauge
Section titled "Pressure Gauge"Which of the following devices measures pressure? 1. Aneroid capsule 2. Bimetal 3. Bourdon tube 4. Thermistor
The manifold pressure gauge is responsible for measuring:
Position transmitter (transponder)
Section titled "Position transmitter (transponder)"In mode A the transponder:
What statement is correct concerning transponders?
Fuel gauges
Section titled "Fuel gauges"Capacitive fuel quantity measurement can indicate the:
Which of the following statements is incorrect regarding fuel gauges?
Evaluate the following statements: 1. Float type fuel gauge indicates fuel mass; 2. Float type fuel gauge indication is affected by the attitude of the aircraft.
Flow Meter
Section titled "Flow Meter"What is the main purpose of a fuel flow meter in an aircraft?
Which of the following statements accurately describes how total fuel consumption can be determined?
Which of the following are methods of measuring fuel flow? 1. Fuel flow measured by volume per unit of time. 2. Fuel flow measured by mass per unit of time.
Which of the following best describes how a basic fuel flow meter operates?
Flight warning systems
Section titled "Flight warning systems"What is the primary function of TCAS II in an aircraft?
What does a red warning message on the Central Warning Panel (CWP) indicate?
What additional feature is commonly included with an important warning to ensure the crew's attention is directed to it?
What is the primary function of the Flight Warning System in an aircraft?
Which GPWS mode is responsible for detecting excessive terrain closure rate?
What is the primary function of the Ground Proximity Warning System (GPWS)?
What is the correct sequence of actions when a Master Caution or Master Warning is received?
What is the purpose of a Master Warning light in an aircraft?
Which of the following flight parameters does GPWS primarily use to generate warnings?
Which of the following best describes a caution message on the Central Warning Panel (CWP)?
Select the correct statement regarding TCAS II Resolution Advisories (RAs):
What symbol and color does TCAS II use to represent a Traffic Advisory (TA) on the display?
Display units
Section titled "Display units"Which of the following statements is correct or incorrect? 1. On LCD displays the view angle is limited; 2. LCD displays use more energy than CRT displays.
Voice communication
Section titled "Voice communication"Which of the following correctly describes how VHF and HF are used for voice communication?
Why do aircraft communication systems use a Push-to-Talk (PTT) mechanism?
Vertical speed indicator
Section titled "Vertical speed indicator"If the static port is clogged, during climbing the vertical speed indicator will:
The inputs for the vertical speed indicator are the following:
Altimeter
Section titled "Altimeter"If the aircraft is flying at 4500 ft by the altimeter setting 1013 hPa, what is the pressure altitude?
If the aircraft is flying at 6000 ft indicated altitude and the altimeter is set to standard (1013 hPa), but the QNH in this region is 1002 hPa, then the:
If QNH is set on the altimeter it will show:
Flying with altimeter setting of 1013 hPa is called:
An airport is located at sea level, the QNH is 1014 hPa, and the temperature is 20 °C (27 ft/hPa). What is the QFE?
When flying through air with a temperature colder than the standard atmosphere at that height:
The pressure with increasing altitude in the standard atmosphere is:
If the aerodrome elevation is 945 ft, and the QFE is 985 hPa, what is the QNH? (27 ft/hPa)
The elevation of the aerodrome is 350 ft, and the QNH is 1005 hPa. What is the QFE? (27 ft = 1 hPa)