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WorksheetsM11.5.1 Instrument Systems (ATA 31) Cat A V4.1.0
Total questions: 32
Worksheet time: 16mins
Where are the flight instruments located in large commercial aircraft?
On the overhead panel
On the flight engineer panel
On the Captains and co-pilots instrument panels
On the centre instrument panel
Which instrument indicates the altitude of the aircraft above sea level or airport?
Airspeed Indicator
Vertical Speed Indicator
Altimeter
Mach meter
What does the Artificial Horizon or Attitude indication show?
Rate of climb or descent
Speed of the aircraft
Roll and pitch attitude of the aircraft
Direction of the aircraft longitudinal axis
What does the Mach meter indicate?
Ratio of the aircraft’s true airspeed to the actual speed of sound
Rate of climb or descent
Temperature of the air around the aircraft
Total air temperature
How is altitude indicated when the baro reference is set to sea level pressure (QNH)?
True altitude
Field elevation
Flight level
Indicated altitude
What is the purpose of the Pitot tube?
To measure static pressure
To indicate altitude
To measure total pressure
To provide dynamic pressure
What does the Altitude Alert System do?
Alerts the pilot about nearby aircraft
Provides weather updates during flight
Compares actual altitude with clearance altitude
Monitors engine performance
When does the altitude alert extinguish?
When the aircraft returns to the correct altitude
When the aircraft deviates more than 300 ft.
When the autopilot is active
When the aircraft climbs or descends
What triggers the over speed warning in jet aircraft?
Indicated airspeed
Mach number
Altitude deviation
Flap position
How does the stall warning system warn the pilot?
Visual flashing lights
Aural alerts and stick shaker vibrations
Overhead loudspeaker announcements
Auto-throttle system activation
What does the Flight Data Recorder (FDR) record?
Radio communications
Time and date of the flight
Air traffic control instructions
Important flight parameters
What provides the heading reference signal for the Horizontal Situation Indicator (HSI) and Radio Magnetic Indicators (RMI)?
Rate Gyro
Vertical Gyro (VG)
Directional Gyro (DG)
Gyro Drive
What keeps the direction of its axis constant as long as no force acts on it?
Rate Gyro
Directional Gyro (DG)
Space Gyro
Gyro Principles
What is the purpose of gyro precession?
To maintain gyro stability
To change the direction of the gyro axis
To shift the force applied to the gyro
To rotate the gyro clockwise
How many degrees of freedom does a gyro with one gimbal have?
1°
2°
3°
1½°
Which instrument uses a Vertical Gyro (VG) as a reference?
Attitude Director Indicator
Direct Reading Compass
Turn & Slip Indicator
Horizontal Situation Indicator
What is the angle between the aircraft longitudinal axis and the direction to the North Pole known as?
Compass Deviation
True North
Magnetic North
Indicated Heading
What is the difference between True North and Magnetic North called?
Compass Compensation
Variation
Inclination
Flux Valve
Where is the Standby Compass usually located in commercial aircraft?
Between the centre-post of the front windshields
On the main instrument panels
In the cockpit's overhead panel
In the flight deck's center console
How is deviation minimized in direct reading compasses?
By using a flux valve
By adjusting the compensating magnets
By installing potentiometers
By conducting a 360° turn of the aircraft
What is the purpose of a flux valve in a remote compass system?
To measure the aircraft's acceleration
To compensate for magnetic deviations
To transfer the direction of the magnetic field into an electrical signal
To compare the aircraft's magnetic field with the heading shown on the indicator
What is the term used by Airbus to refer to the Electronic Instrument Display System?
Integrated Display System (IDS)
Engine Indication and Central Warning System (ECAM)
Electronic Centralised Aircraft Monitoring (ECAM)
Electronic Instrument System (EIS)
How are the displays in the Electronic Instrument Display Systems (EIDS) activated?
By pressing the "ON" button on each display unit
By pulling the brightness control knob
By rotating the brightness control knob clockwise
By adjusting the EFIS control panel
What are the two main types of displays in the Electronic Flight Instrument System (EFIS)?
Engine Indication and Crew Alerting System (EICAS) and Navigation Displays (ND)
Primary Flight Displays (PFD) and Central Warning System (CWS)
Primary Flight Displays (PFD) and Navigation Displays (ND)
Electronic Centralised Aircraft Monitoring (ECAM) and Navigation Displays (ND)
How are central warnings different from local warnings?
Central warnings are controlled by specific aircraft systems, while local warnings are controlled by computers.
Central warnings are controlled directly from the specific systems, while local warnings are controlled by the Central Warning System (CWS).
Central warnings require immediate attention, while local warnings may not necessarily require immediate action.
Central warnings are displayed only on the upper display units, while local warnings are displayed on the lower display units.
What instrument is shown in position 1?
Airspeed Indicator
Altimeter
Vertical Speed Indicator
Attitude Director Indicator
Turn & Bank Coordinator
Which of the following instruments are within the Basic T?
Horizontal Situation Indicator
Airspeed Indicator
Vertical Speed Indicator
Turn & Bank Indicator or Coordinator
Engine Oil Pressure Indicator
How is the total amount of fuel presented on the ECAM/EICAS display?
ECAM - Total Fuel (TF) in kilograms, EICAS - Fuel on Board (FOB) in metric tons.
ECAM - Fuel on Board (FOB) in kilograms, EICAS - Total Fuel (TF) in metric tons.
ECAM - Fuel on Board (FOB) in kilograms, EICAS - Total Fuel (TF) in kilograms.
ECAM - Total Fuel (TF) in metric tons, EICAS - Fuel on Board (FOB) in kilograms.
How is fuel temperature indicated on the EICAS and ECAM displays?
EICAS displays individual temperature values for each wing tank, while ECAM displays fuel temperature in one tank.
EICAS displays fuel temperature in one tank, while ECAM displays individual temperature values for each wing tank.
Both EICAS and ECAM display fuel temperature in one tank.
Both EICAS and ECAM display individual temperature values for each wing tank.
What type of sensors are used as accelerometers in the engine vibration monitoring system?
Optical sensors
Thermocouples
Electromagnetic accelerometers
Ultrasonic sensors
How many sensors are usually found on each engine for vibration monitoring?
One sensor located in the compressor area
One sensor located in the turbine area
Two sensors, one in the compressor area and one in the turbine area
Three sensors, two in the compressor area and one in the turbine area
What does it mean when the EICAS display shows "FAN" as a vibration indication mode?
The forward sensor is measuring the vibration of the N1 rotor.
The aft sensor is measuring the vibration of the N1 rotor.
The vibration of the N2 rotor system is measured by the aft sensor.
The unfiltered vibration signal from the aft sensor is displayed.
