30 Questions
What was the problem with the early aircraft instrument panels?
The pilots had to relearn the instrument position every time they flew a different aircraft
What was the significance of the Basic T configuration in aircraft cockpits?
It enabled pilots to fly in poor weather without getting disoriented
Which instruments were always present in the Basic T configuration?
Airspeed indicator, altimeter, and attitude indicator
What was the purpose of adding a turn coordinator and vertical speed indicator to the Basic T configuration?
To provide more accurate information to the pilot
When did the Basic T configuration become standard in aircraft cockpits?
After 1950
What was the problem with the instrument panels before the Basic T configuration?
The instruments were not laid out in a standardized way
What is the primary purpose of the EFIS display system?
To display all primary aircraft operational information on screens
What is the advantage of using EFIS over analogue instrument-based cockpits?
It reduces instrument clutter and increases reliability
What do sensors and digital signals transmitted over a data bus lack the ability to do?
Generate a display on a screen
What is the role of processors and electronic devices in the display system?
To interpret data from avionics data buses
What is included in a typical EFIS system?
An EADI, an EHSI, three symbol generators, two control panels, and two source selection panels
What is the benefit of using EFIS in terms of maintenance?
It reduces the number of mechanical instruments required
What is the primary benefit of a turn coordinator in an aircraft?
It provides a more accurate wing level position, requiring fewer corrections.
What is the main reason cathode ray tube technology is becoming less common in aircraft displays?
It is unreliable, large, and has a short service life.
What is the name of the instrument that combines the functions of the Artificial Horizon and the Directional Gyro in larger aircraft?
Attitude Direction Indicator (ADI)
What is the purpose of standby instruments in an aircraft?
To provide a backup in case of primary instrument failure.
What is the primary advantage of an ADI over a basic artificial horizon?
It provides a more accurate wing level position.
What is the name of the instrument that displays horizontal situational information in larger aircraft?
Horizontal Situation Indicator (HSI)
What is displayed on the PFD in addition to the basic flight information?
Autopilot mode information, track flight plan, and traffic collision avoidance system (TCAS) information
What type of information can the ND be integrated with?
Terrain information, weather radar information, and traffic information
What does the PFD and ND provide in the event of a collision threat?
Resolution Advisories
What system does the Boeing system use to provide airframe and engine data?
EICAS
What is displayed on the primary and secondary screens of the Boeing system?
Primary and secondary engine data, and visual cautions, warnings, and memos
What is the unit of pressure displayed on the PFD?
All of the above
What is a common failure that can occur in an aviation system?
A terminal or connector shorted to earth
What is the primary function of a symbol generator in an Electronic Display System?
To generate symbols for display units
Why are data buses often duplicated in aviation systems?
For redundancy and backup
What is a typical feature of commercial aircraft electronic display systems?
At least two symbol generators
What type of signals do symbol generators provide interfaces for?
Analogue, discrete, and digital signals
What is a secondary function of a symbol generator unit (SGU)?
All of the above
Learn about the early development of aircraft instrument clusters, from altimeters to attitude instruments, and how pilots adapted to different layouts. This quiz focuses on the CASA Part 66 training module for digital techniques and electronic instrument systems.
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